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torben |
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// Upgraded to Delphi 2009: Sebastian Zierer
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(* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is TurboPower SysTools
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*
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* The Initial Developer of the Original Code is
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* TurboPower Software
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*
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* Portions created by the Initial Developer are Copyright (C) 1996-2002
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* ***** END LICENSE BLOCK ***** *)
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{*********************************************************}
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{* SysTools: StSystem.pas 4.04 *}
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{*********************************************************}
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{* SysTools: Assorted system level routines *}
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{*********************************************************}
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{$I StDefine.inc}
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unit StSystem;
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interface
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uses
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Windows, SysUtils, Classes,
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{$IFDEF Version6} {$WARN UNIT_PLATFORM OFF} {$ENDIF}
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FileCtrl,
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{$IFDEF Version6} {$WARN UNIT_PLATFORM ON} {$ENDIF}
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StConst, StBase, StUtils, StDate, StStrL;
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{$IFNDEF VERSION6}
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const
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PathDelim = '\';
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DriveDelim = ':';
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PathSep = ';';
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{$ENDIF VERSION6}
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const
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StPathDelim = PathDelim; { Delphi/Linux constant }
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StPathSep = PathSep; { Delphi/Linux constant }
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StDriveDelim = DriveDelim;
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StDosPathDelim = '\';
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StUnixPathDelim = '/';
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StDosPathSep = ';';
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StUnixPathSep = ':';
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StDosAnyFile = '*.*';
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StUnixAnyFile = '*';
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StAnyFile = {$IFDEF LINUX} StUnixAnyFile; {$ELSE} StDosAnyFile; {$ENDIF}
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StThisDir = '.';
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StParentDir = '..';
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type
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DiskClass = ( Floppy360, Floppy720, Floppy12, Floppy144, OtherFloppy,
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HardDisk, RamDisk, UnknownDisk, InvalidDrive, RemoteDrive, CDRomDisk );
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{This enumerated type defines the nine classes of disks that can be
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identified by GetDiskClass, as well as several types used as error
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indications}
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PMediaIDType = ^MediaIDType;
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MediaIDType = packed record
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{This type describes the information that DOS 4.0 or higher writes
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in the boot sector of a disk when it is formatted}
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InfoLevel : Word; {Reserved for future use}
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SerialNumber : LongInt; {Disk serial number}
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VolumeLabel : array[0..10] of Char; {Disk volume label}
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FileSystemID : array[0..7] of Char; {String for internal use by the OS}
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end;
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TIncludeItemFunc = function (const SR : TSearchRec;
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ForInclusion : Boolean; var Abort : Boolean) : Boolean;
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{Function type for the routine passed to EnumerateFiles and
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EnumerateDirectories. It will be called in two ways: to request
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confirmation to include the entity described in SR into the
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string list (ForInclusion = true); or to ask whether to recurse
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into a particular subdirectory (ForInclusion = false).}
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{**** Routine Declarations ****}
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{CopyFile}
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function CopyFile(const SrcPath, DestPath : String) : Cardinal;
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{-Copy a file.}
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{CreateTempFile}
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function CreateTempFile(const aFolder : String;
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const aPrefix : String) : String;
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{-Creates a temporary file.}
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{DeleteVolumeLabel}
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function DeleteVolumeLabel(Drive : Char) : Cardinal;
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{-Deletes an existing volume label on Drive. Returns 0 for success,
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or OS error code.}
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{EnumerateDirectories}
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procedure EnumerateDirectories(const StartDir : String; FL : TStrings; {!!.02}
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SubDirs : Boolean;
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IncludeItem : TIncludeItemFunc);
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{-Retrieves the complete path name of directories on requested file
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system path.}
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{EnumerateFiles}
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procedure EnumerateFiles(const StartDir : String; FL : TStrings; {!!.02}
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SubDirs : Boolean;
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IncludeItem : TIncludeItemFunc);
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{-Retrieves the complete path name of files in a requested file system path.}
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{FileHandlesLeft}
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function FileHandlesLeft(MaxHandles : Cardinal) : Cardinal;
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{-Return the number of available file handles.}
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{FileMatchesMask}
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function FileMatchesMask(const FileName, FileMask : String ) : Boolean;
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{-see if FileName matches FileMask}
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{FileTimeToStDateTime}
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function FileTimeToStDateTime(FileTime : LongInt) : TStDateTimeRec;
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{-Converts a DOS date-time value to TStDate and TStTime values.}
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{FindNthSlash}
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function FindNthSlash( const Path : String; n : Integer ) : Integer;
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{ return the position of the character just before the nth slash }
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{FlushOsBuffers}
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function FlushOsBuffers(Handle : Integer) : Boolean;
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{-Flush the OS buffers for the specified file handle.}
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{GetCurrentUser}
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function GetCurrentUser : String;
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{-Obtains current logged in username}
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{GetDiskClass}
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function GetDiskClass(Drive : Char) : DiskClass;
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{-Return the disk class for the specified drive.}
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{GetDiskInfo}
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function GetDiskInfo(Drive : Char; var ClustersAvailable, TotalClusters,
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BytesPerSector, SectorsPerCluster : Cardinal) : Boolean;
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{-Return technical information about the specified drive.}
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{GetDiskSpace}
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{$IFDEF CBuilder}
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function GetDiskSpace(Drive : Char;
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var UserSpaceAvail : Double; {space available to user}
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var TotalSpaceAvail : Double; {total space available}
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var DiskSize : Double) : Boolean;{disk size}
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{-Return space information about the drive.}
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{$ELSE}
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function GetDiskSpace(Drive : Char;
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var UserSpaceAvail : Comp; {space available to user}
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var TotalSpaceAvail : Comp; {total space available}
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var DiskSize : Comp) : Boolean;{disk size}
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{-Return space information about the drive.}
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{$ENDIF}
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{GetFileCreateDate}
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function GetFileCreateDate(const FileName : String) :
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TDateTime;
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{-Obtains file system time of file creation.}
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{GetFileLastAccess}
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function GetFileLastAccess(const FileName : String) :
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TDateTime;
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{-Obtains file system time of last file access.}
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{GetFileLastModify}
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function GetFileLastModify(const FileName : String) :
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TDateTime;
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{-Obtains file system time of last file modification.}
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{GetHomeFolder}
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function GetHomeFolder(aForceSlash : Boolean) : String;
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{-Obtains the "Home Folder" for the current user}
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{$IFNDEF CBuilder}
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{GetLongPath}
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function GetLongPath(const APath : String) : String;
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{-Returns the long filename version of a provided path.}
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{$ENDIF}
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{GetMachineName}
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function GetMachineName : String;
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{-Returns the "Machine Name" for the current computer }
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{GetMediaID}
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function GetMediaID(Drive : Char; var MediaIDRec : MediaIDType) : Cardinal;
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{-Get the media information (Volume Label, Serial Number) for the specified drive}
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{GetParentFolder}
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function GetParentFolder(const APath : String; aForceSlash : Boolean) : String;
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{-return the parent directory for the provided directory }
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{GetShortPath}
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function GetShortPath(const APath : String) : String;
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{-Returns the short filename version of a provided path.}
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{GetSystemFolder}
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function GetSystemFolder(aForceSlash : Boolean) : String;
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{-Returns the path to the Windows "System" folder".)
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{GetTempFolder}
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function GetTempFolder(aForceSlash : boolean) : String;
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{-Returns the path to the system temporary folder.}
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{GetWindowsFolder}
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function GetWindowsFolder(aForceSlash : boolean) : String;
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{-Returns the path to the main "Windows" folder.}
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{GetWorkingFolder}
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function GetWorkingFolder(aForceSlash : boolean) : String;
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{-Returns the current working directory.}
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{GlobalDateTimeToLocal}
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function GlobalDateTimeToLocal(const UTC: TStDateTimeRec; MinOffset: Integer): TStDateTimeRec; {!!.02}
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{-adjusts a global date/time (UTC) to the local date/time}
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{IsDirectory}
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function IsDirectory(const DirName : String) : Boolean;
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{-Return True if DirName is a directory.}
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{IsDirectoryEmpty}
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function IsDirectoryEmpty(const S : String) : Integer;
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{-checks if there are any entries in the directory}
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{IsDriveReady}
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function IsDriveReady(Drive : Char) : Boolean;
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{-determine if requested drive is accessible }
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{IsFile}
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function IsFile(const FileName : String) : Boolean;
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{-Determines if the provided path specifies a file.}
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{IsFileArchive}
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function IsFileArchive(const S : String) : Integer;
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{-checks if file's archive attribute is set}
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{IsFileHidden}
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function IsFileHidden(const S : String) : Integer;
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{-checks if file's hidden attribute is set}
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{IsFileReadOnly}
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function IsFileReadOnly(const S : String) : Integer;
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{-checks if file's readonly attribute is set}
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{IsFileSystem}
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function IsFileSystem(const S : String) : Integer;
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{-checks if file's system attribute is set}
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{LocalDateTimeToGlobal}
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function LocalDateTimeToGlobal(const DT1: TStDateTimeRec; MinOffset: Integer): TStDateTimeRec; {!!.02}
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{-adjusts a local date/time to the global (UTC) date/time}
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{ReadVolumeLabel}
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function ReadVolumeLabel(var VolName : String; Drive : Char) : Cardinal;
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{-Get the volume label for the specified drive.}
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{SameFile}
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function SameFile(const FilePath1, FilePath2 : String; var ErrorCode : Integer) : Boolean;
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{-Return True if FilePath1 and FilePath2 refer to the same physical file.}
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{SetMediaID} {!!!! does not work on NT/2000 !!!!}
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function SetMediaID(Drive : Char; var MediaIDRec : MediaIDType) : Cardinal;
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{-Set the media ID record for the specified drive.}
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{SplitPath}
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procedure SplitPath(const APath : String; Parts : TStrings);
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{-Splits the provided path into its component sub-paths}
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{StDateTimeToFileTime}
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function StDateTimeToFileTime(const FileTime : TStDateTimeRec) : LongInt; {!!.02}
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{-Converts an TStDate and TStTime to a DOS date-time value.}
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{StDateTimeToUnixTime}
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function StDateTimeToUnixTime(const DT1 : TStDateTimeRec) : Longint; {!!.02}
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{-converts a TStDateTimeRec to a time in Unix base (1970)}
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{UnixTimeToStDateTime}
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function UnixTimeToStDateTime(UnixTime : Longint) : TStDateTimeRec;
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{-converts a time in Unix base (1970) to a TStDateTimeRec}
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{ValidDrive}
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function ValidDrive(Drive : Char) : Boolean;
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{-Determine if the drive is a valid drive.}
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{WriteVolumeLabel}
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function WriteVolumeLabel(const VolName : String; Drive : Char) : Cardinal;
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{-Sets the volume label for the specified drive.}
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(*
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{$EXTERNALSYM GetLongPathNameA}
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function GetLongPathNameA(lpszShortPath: PAnsiChar; lpszLongPath: PAnsiChar;
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cchBuffer: DWORD): DWORD; stdcall;
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{$EXTERNALSYM GetLongPathNameW}
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function GetLongPathNameW(lpszShortPath: PWideChar; lpszLongPath: PWideChar;
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cchBuffer: DWORD): DWORD; stdcall;
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{$EXTERNALSYM GetLongPathName}
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function GetLongPathName(lpszShortPath: PChar; lpszLongPath: PChar;
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cchBuffer: DWORD): DWORD; stdcall;
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*)
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implementation
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const
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FILE_ANY_ACCESS = 0;
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METHOD_BUFFERED = 0;
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IOCTL_DISK_BASE = $00000007;
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VWIN32_DIOC_DOS_IOCTL = 1;
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IOCTL_DISK_GET_MEDIA_TYPES = ((IOCTL_DISK_BASE shl 16) or
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(FILE_ANY_ACCESS shl 14) or ($0300 shl 2) or METHOD_BUFFERED);
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procedure StChDir(const S: String); {!!.02}
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{ wrapper for Delphi ChDir to handle a bug in D6}
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{$IFDEF VER140}
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var
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Rslt : Integer;
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{$ENDIF}
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begin
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{$IFNDEF VER140}
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Chdir(S);
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{$ELSE}
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{$I-}
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Chdir(S);
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if IOResult <> 0 then begin
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Rslt := GetLastError;
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SetInOutRes(Rslt);
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end;
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{$I+}
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{$ENDIF}
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end;
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{CopyFile}
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function CopyFile(const SrcPath, DestPath : String) : Cardinal;
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{-Copy the file specified by SrcPath into DestPath. DestPath must specify
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a complete filename, it may not be the name of a directory without the
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file portion. This a low level routine, and the input pathnames are not
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checked for validity.}
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const
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BufferSize = 4 * 1024;
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var
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BytesRead, BytesWritten : LongInt;
|
357 |
|
|
FileDate : LongInt;
|
358 |
|
|
Src, Dest, Mode, SaveFAttr : Integer;
|
359 |
|
|
Buffer : Pointer;
|
360 |
|
|
|
361 |
|
|
begin
|
362 |
|
|
{$IFDEF Version6} {$WARN SYMBOL_PLATFORM OFF} {$ENDIF}
|
363 |
|
|
Src := 0;
|
364 |
|
|
Dest := 0;
|
365 |
|
|
Buffer := nil;
|
366 |
|
|
Result := 1;
|
367 |
|
|
try
|
368 |
|
|
GetMem(Buffer, BufferSize);
|
369 |
|
|
Mode := FileMode and $F0;
|
370 |
|
|
SaveFAttr := FileGetAttr(SrcPath);
|
371 |
|
|
if SaveFAttr < 0 then begin
|
372 |
|
|
Result := 1;
|
373 |
|
|
Exit;
|
374 |
|
|
end;
|
375 |
|
|
Src := FileOpen(SrcPath, Mode);
|
376 |
|
|
if Src < 0 then begin
|
377 |
|
|
Result := 1; {unable to access SrcPath}
|
378 |
|
|
Exit;
|
379 |
|
|
end;
|
380 |
|
|
Dest := FileCreate(DestPath);
|
381 |
|
|
if Dest < 0 then begin
|
382 |
|
|
Result := 2; {unable to open DestPath}
|
383 |
|
|
Exit;
|
384 |
|
|
end;
|
385 |
|
|
repeat
|
386 |
|
|
BytesRead := FileRead(Src, Buffer^, BufferSize);
|
387 |
|
|
if (BytesRead = -1) then begin
|
388 |
|
|
Result := 3; {error reading from Src}
|
389 |
|
|
Exit;
|
390 |
|
|
end;
|
391 |
|
|
BytesWritten := FileWrite(Dest, Buffer^, BytesRead);
|
392 |
|
|
if (BytesWritten = -1) or
|
393 |
|
|
(BytesWritten <> BytesRead) then begin
|
394 |
|
|
Result := 4; {error writing to Dest}
|
395 |
|
|
Exit;
|
396 |
|
|
end;
|
397 |
|
|
until BytesRead < BufferSize;
|
398 |
|
|
FileDate := FileGetDate(Src);
|
399 |
|
|
if FileDate = -1 then begin
|
400 |
|
|
Result := 5; {error getting SrcPath's Date/Time}
|
401 |
|
|
Exit;
|
402 |
|
|
end;
|
403 |
|
|
FileSetDate(Dest, FileDate);
|
404 |
|
|
FileSetAttr(DestPath, SaveFAttr);
|
405 |
|
|
Result := 0;
|
406 |
|
|
finally
|
407 |
|
|
if Assigned(Buffer) then
|
408 |
|
|
FreeMem(Buffer, BufferSize);
|
409 |
|
|
if Src > 0 then FileClose(Src);
|
410 |
|
|
if Dest > 0 then begin
|
411 |
|
|
FileClose(Dest);
|
412 |
|
|
if Result <> 0 then SysUtils.DeleteFile(DestPath);
|
413 |
|
|
end;
|
414 |
|
|
end;
|
415 |
|
|
{$IFDEF Version6} {$WARN SYMBOL_PLATFORM ON} {$ENDIF}
|
416 |
|
|
end;
|
417 |
|
|
|
418 |
|
|
{CreateTempFile}
|
419 |
|
|
function CreateTempFile(const aFolder : String;
|
420 |
|
|
const aPrefix : String) : String;
|
421 |
|
|
{-Creates a temporary file.}
|
422 |
|
|
var
|
423 |
|
|
TempFileNameZ : array [0..MAX_PATH] of Char;
|
424 |
|
|
TempDir : String;
|
425 |
|
|
begin
|
426 |
|
|
TempDir := aFolder;
|
427 |
|
|
if not DirectoryExists(TempDir) then
|
428 |
|
|
TempDir := GetTempFolder(True);
|
429 |
|
|
if not DirectoryExists(TempDir) then
|
430 |
|
|
TempDir := GetWorkingFolder(True);
|
431 |
|
|
|
432 |
|
|
if (GetTempFileName(PChar(TempDir), PChar(aPrefix), 0,
|
433 |
|
|
TempFileNameZ) = 0)
|
434 |
|
|
then
|
435 |
|
|
{$IFDEF Version6}
|
436 |
|
|
RaiseLastOSError;
|
437 |
|
|
{$ELSE}
|
438 |
|
|
RaiseLastWin32Error;
|
439 |
|
|
{$ENDIF}
|
440 |
|
|
Result := TempFileNameZ;
|
441 |
|
|
end;
|
442 |
|
|
|
443 |
|
|
|
444 |
|
|
{DeleteVolumeLabel}
|
445 |
|
|
function DeleteVolumeLabel(Drive : Char) : Cardinal;
|
446 |
|
|
{-Deletes an existing volume label on Drive. Returns 0 for success,
|
447 |
|
|
or OS error code.}
|
448 |
|
|
var
|
449 |
|
|
Root : array[0..3] of Char;
|
450 |
|
|
begin
|
451 |
|
|
StrCopy(Root, '%:\');
|
452 |
|
|
Root[0] := Drive;
|
453 |
|
|
if Windows.SetVolumeLabel(Root, '') then
|
454 |
|
|
Result := 0
|
455 |
|
|
else Result := GetLastError;
|
456 |
|
|
end;
|
457 |
|
|
|
458 |
|
|
{EnumerateDirectories}
|
459 |
|
|
procedure EnumerateDirectories(const StartDir : String; FL : TStrings; {!!.02}
|
460 |
|
|
SubDirs : Boolean;
|
461 |
|
|
IncludeItem : TIncludeItemFunc);
|
462 |
|
|
{-Retrieves the complete path name of directories on requested file
|
463 |
|
|
system path.}
|
464 |
|
|
var
|
465 |
|
|
Abort : Boolean;
|
466 |
|
|
procedure SearchBranch;
|
467 |
|
|
var
|
468 |
|
|
SR : TSearchRec;
|
469 |
|
|
Error : SmallInt;
|
470 |
|
|
Dir : String;
|
471 |
|
|
begin
|
472 |
|
|
Error := FindFirst(StDosAnyFile, faDirectory, SR);
|
473 |
|
|
if Error = 0 then begin
|
474 |
|
|
GetDir(0, Dir);
|
475 |
|
|
if Dir[Length(Dir)] <> StDosPathDelim then
|
476 |
|
|
Dir := Dir + StDosPathDelim;
|
477 |
|
|
Abort := False;
|
478 |
|
|
while (Error = 0) and not Abort do begin
|
479 |
|
|
try
|
480 |
|
|
if (@IncludeItem = nil) or (IncludeItem(SR, true, Abort)) then begin
|
481 |
|
|
if (SR.Attr and faDirectory = faDirectory) and
|
482 |
|
|
(SR.Name <> StThisDir) and (SR.Name <> StParentDir) then
|
483 |
|
|
FL.Add(Dir + SR.Name);
|
484 |
|
|
end;
|
485 |
|
|
except
|
486 |
|
|
on EOutOfMemory do
|
487 |
|
|
raise EOutOfMemory.Create(stscSysStringListFull);
|
488 |
|
|
end;
|
489 |
|
|
Error := FindNext(SR);
|
490 |
|
|
end;
|
491 |
|
|
FindClose(SR);
|
492 |
|
|
end;
|
493 |
|
|
|
494 |
|
|
if not Abort and SubDirs then begin
|
495 |
|
|
Error := FindFirst(StDosAnyFile, faDirectory, SR);
|
496 |
|
|
if Error = 0 then begin
|
497 |
|
|
Abort := False;
|
498 |
|
|
while (Error = 0) and not Abort do begin
|
499 |
|
|
if ((SR.Attr and faDirectory = faDirectory) and
|
500 |
|
|
(SR.Name <> StThisDir) and (SR.Name <> StParentDir)) then begin
|
501 |
|
|
if (@IncludeItem = nil) or (IncludeItem(SR, false, Abort)) then begin
|
502 |
|
|
StChDir(SR.Name);
|
503 |
|
|
SearchBranch;
|
504 |
|
|
StChDir(StParentDir);
|
505 |
|
|
end;
|
506 |
|
|
end;
|
507 |
|
|
Error := FindNext(SR);
|
508 |
|
|
end;
|
509 |
|
|
FindClose(SR);
|
510 |
|
|
|
511 |
|
|
end;
|
512 |
|
|
end;
|
513 |
|
|
end;
|
514 |
|
|
|
515 |
|
|
var
|
516 |
|
|
OrgDir : String;
|
517 |
|
|
|
518 |
|
|
begin
|
519 |
|
|
if IsDirectory(StartDir) then
|
520 |
|
|
begin
|
521 |
|
|
GetDir(0, OrgDir);
|
522 |
|
|
try
|
523 |
|
|
StChDir(StartDir);
|
524 |
|
|
SearchBranch;
|
525 |
|
|
finally
|
526 |
|
|
StChDir(OrgDir);
|
527 |
|
|
end;
|
528 |
|
|
end else
|
529 |
|
|
raise Exception.Create(stscSysBadStartDir);
|
530 |
|
|
end;
|
531 |
|
|
|
532 |
|
|
{EnumerateFiles}
|
533 |
|
|
procedure EnumerateFiles(const StartDir : String; {!!.02}
|
534 |
|
|
FL : TStrings;
|
535 |
|
|
SubDirs : Boolean;
|
536 |
|
|
IncludeItem : TIncludeItemFunc);
|
537 |
|
|
{-Retrieves the complete path name of files in a requested file system path.}
|
538 |
|
|
var
|
539 |
|
|
Abort : Boolean;
|
540 |
|
|
|
541 |
|
|
procedure SearchBranch;
|
542 |
|
|
var
|
543 |
|
|
SR : TSearchRec;
|
544 |
|
|
Error : SmallInt;
|
545 |
|
|
Dir : String;
|
546 |
|
|
begin
|
547 |
|
|
Error := FindFirst(StDosAnyFile, faAnyFile, SR);
|
548 |
|
|
if Error = 0 then begin
|
549 |
|
|
GetDir(0, Dir);
|
550 |
|
|
if Dir[Length(Dir)] <> StDosPathDelim then
|
551 |
|
|
Dir := Dir + StDosPathDelim;
|
552 |
|
|
|
553 |
|
|
Abort := False;
|
554 |
|
|
while (Error = 0) and not Abort do begin
|
555 |
|
|
try
|
556 |
|
|
if (@IncludeItem = nil) or (IncludeItem(SR, true, Abort)) then
|
557 |
|
|
FL.Add(Dir + SR.Name);
|
558 |
|
|
except
|
559 |
|
|
on EOutOfMemory do
|
560 |
|
|
begin
|
561 |
|
|
raise EOutOfMemory.Create(stscSysStringListFull);
|
562 |
|
|
end;
|
563 |
|
|
end;
|
564 |
|
|
Error := FindNext(SR);
|
565 |
|
|
end;
|
566 |
|
|
FindClose(SR);
|
567 |
|
|
end;
|
568 |
|
|
|
569 |
|
|
|
570 |
|
|
if not Abort and SubDirs then begin
|
571 |
|
|
Error := FindFirst(StDosAnyFile, faAnyFile, SR);
|
572 |
|
|
if Error = 0 then begin
|
573 |
|
|
Abort := False;
|
574 |
|
|
while (Error = 0) and not Abort do begin
|
575 |
|
|
if ((SR.Attr and faDirectory = faDirectory) and
|
576 |
|
|
(SR.Name <> StThisDir) and (SR.Name <> StParentDir)) then begin
|
577 |
|
|
if (@IncludeItem = nil) or (IncludeItem(SR, false, Abort)) then begin
|
578 |
|
|
StChDir(SR.Name);
|
579 |
|
|
SearchBranch;
|
580 |
|
|
StChDir(StParentDir);
|
581 |
|
|
end;
|
582 |
|
|
end;
|
583 |
|
|
Error := FindNext(SR);
|
584 |
|
|
end;
|
585 |
|
|
FindClose(SR);
|
586 |
|
|
end;
|
587 |
|
|
end;
|
588 |
|
|
end;
|
589 |
|
|
|
590 |
|
|
var
|
591 |
|
|
OrgDir : String;
|
592 |
|
|
|
593 |
|
|
begin
|
594 |
|
|
if IsDirectory(StartDir) then
|
595 |
|
|
begin
|
596 |
|
|
GetDir(0, OrgDir);
|
597 |
|
|
try
|
598 |
|
|
StChDir(StartDir);
|
599 |
|
|
SearchBranch;
|
600 |
|
|
finally
|
601 |
|
|
StChDir(OrgDir);
|
602 |
|
|
end;
|
603 |
|
|
end else
|
604 |
|
|
raise Exception.Create(stscSysBadStartDir);
|
605 |
|
|
end;
|
606 |
|
|
|
607 |
|
|
|
608 |
|
|
{FileHandlesLeft}
|
609 |
|
|
{.$HINTS OFF}
|
610 |
|
|
function FileHandlesLeft(MaxHandles : Cardinal) : Cardinal;
|
611 |
|
|
{-Returns the number of available file handles. In 32-bit, this can be a
|
612 |
|
|
large number. Use MaxHandles to limit the number of handles counted.
|
613 |
|
|
The maximum is limited by HandleLimit - you can increase HandleLimit if
|
614 |
|
|
you wish. A temp file is required because Win95 seems to have some
|
615 |
|
|
limit on the number of times you can open NUL.}
|
616 |
|
|
const
|
617 |
|
|
HandleLimit = 1024;
|
618 |
|
|
type
|
619 |
|
|
PHandleArray = ^THandleArray;
|
620 |
|
|
THandleArray = array[0..Pred(HandleLimit)] of Integer;
|
621 |
|
|
var
|
622 |
|
|
Handles : PHandleArray;
|
623 |
|
|
MaxH, I : Integer;
|
624 |
|
|
TempPath, TempFile : PChar;
|
625 |
|
|
begin
|
626 |
|
|
Result := 0;
|
627 |
|
|
MaxH := MinLong(HandleLimit, MaxHandles);
|
628 |
|
|
TempFile := nil;
|
629 |
|
|
TempPath := nil;
|
630 |
|
|
Handles := nil;
|
631 |
|
|
try
|
632 |
|
|
TempFile := StrAlloc(MAX_PATH+1); {!!.01}
|
633 |
|
|
TempPath := StrAlloc(MAX_PATH+1); {!!.01}
|
634 |
|
|
GetMem(Handles, MaxH * SizeOf(Integer));
|
635 |
|
|
GetTempPath(MAX_PATH, TempPath); {!!.01}
|
636 |
|
|
GetTempFileName(TempPath, 'ST', 0, TempFile);
|
637 |
|
|
for I := 0 to Pred(MaxH) do begin
|
638 |
|
|
Handles^[I] := CreateFile(TempFile, 0, FILE_SHARE_READ, nil,
|
639 |
|
|
OPEN_EXISTING, FILE_FLAG_DELETE_ON_CLOSE, 0);
|
640 |
|
|
if Handles^[I] <> LongInt(INVALID_HANDLE_VALUE) then
|
641 |
|
|
Inc(Result) else Break;
|
642 |
|
|
end;
|
643 |
|
|
for I := 0 to Pred(Result) do
|
644 |
|
|
FileClose(Handles^[I]);
|
645 |
|
|
finally
|
646 |
|
|
if Assigned(Handles) then
|
647 |
|
|
FreeMem(Handles, MaxH * SizeOf(Integer));
|
648 |
|
|
StrDispose(TempFile);
|
649 |
|
|
StrDispose(TempPath);
|
650 |
|
|
end;
|
651 |
|
|
end;
|
652 |
|
|
{.$HINTS ON}
|
653 |
|
|
|
654 |
|
|
{ -------------------------------------------------------------------------- }
|
655 |
|
|
function StPatternMatch(const Source : string; iSrc : Integer; {!!.02}
|
656 |
|
|
const Pattern : string; iPat : Integer ) : Boolean; {!!.02}
|
657 |
|
|
{ recursive routine to see if the source string matches
|
658 |
|
|
the pattern. Both ? and * wildcard characters are allowed.
|
659 |
|
|
Compares Source from iSrc to Length(Source) to
|
660 |
|
|
Pattern from iPat to Length(Pattern)}
|
661 |
|
|
var
|
662 |
|
|
Matched : Boolean;
|
663 |
|
|
k : Integer;
|
664 |
|
|
begin
|
665 |
|
|
{$R-}
|
666 |
|
|
if Length( Source ) = 0 then begin
|
667 |
|
|
Result := Length( Pattern ) = 0;
|
668 |
|
|
Exit;
|
669 |
|
|
end;
|
670 |
|
|
|
671 |
|
|
if iPat = 1 then begin
|
672 |
|
|
if ( CompareStr( Pattern, StDosAnyFile) = 0 ) or
|
673 |
|
|
( CompareStr( Pattern, StUnixAnyFile ) = 0 ) then begin
|
674 |
|
|
Result := True;
|
675 |
|
|
Exit;
|
676 |
|
|
end;
|
677 |
|
|
end;
|
678 |
|
|
|
679 |
|
|
if Length( Pattern ) = 0 then begin
|
680 |
|
|
Result := (Length( Source ) - iSrc + 1 = 0);
|
681 |
|
|
Exit;
|
682 |
|
|
end;
|
683 |
|
|
|
684 |
|
|
while True do begin
|
685 |
|
|
if ( Length( Source ) < iSrc ) and
|
686 |
|
|
( Length( Pattern ) < iPat ) then begin
|
687 |
|
|
Result := True;
|
688 |
|
|
Exit;
|
689 |
|
|
end;
|
690 |
|
|
|
691 |
|
|
if Length( Pattern ) < iPat then begin
|
692 |
|
|
Result := False;
|
693 |
|
|
Exit;
|
694 |
|
|
end;
|
695 |
|
|
|
696 |
|
|
if (iPat <= Length(Pattern)) and (Pattern[iPat] = '*') then begin
|
697 |
|
|
k := iPat;
|
698 |
|
|
if ( Length( Pattern ) < iPat + 1 ) then begin
|
699 |
|
|
Result := True;
|
700 |
|
|
Exit;
|
701 |
|
|
end;
|
702 |
|
|
|
703 |
|
|
while True do begin
|
704 |
|
|
Matched := StPatternMatch( Source, k, Pattern, iPat + 1 );
|
705 |
|
|
if Matched or ( Length( Source ) < k ) then begin
|
706 |
|
|
Result := Matched;
|
707 |
|
|
Exit;
|
708 |
|
|
end;
|
709 |
|
|
inc( k );
|
710 |
|
|
end;
|
711 |
|
|
end
|
712 |
|
|
else begin
|
713 |
|
|
if ((Pattern[iPat] = '?') and
|
714 |
|
|
( Length( Source ) <> iSrc - 1 ) ) or
|
715 |
|
|
( Pattern[iPat] = Source[iSrc] ) then begin
|
716 |
|
|
inc( iPat );
|
717 |
|
|
inc( iSrc );
|
718 |
|
|
end
|
719 |
|
|
else begin
|
720 |
|
|
Result := False;
|
721 |
|
|
Exit;
|
722 |
|
|
end;
|
723 |
|
|
end;
|
724 |
|
|
end;
|
725 |
|
|
{$R+}
|
726 |
|
|
end;
|
727 |
|
|
|
728 |
|
|
{FileMatchesMask}
|
729 |
|
|
function FileMatchesMask(const FileName, FileMask : String ) : Boolean;
|
730 |
|
|
{-see if FileName matches FileMask}
|
731 |
|
|
var
|
732 |
|
|
DirMatch : Boolean;
|
733 |
|
|
MaskDir : String;
|
734 |
|
|
LFN, LFM : String;
|
735 |
|
|
begin
|
736 |
|
|
LFN := UpperCase( FileName );
|
737 |
|
|
LFM := UpperCase( FileMask );
|
738 |
|
|
MaskDir := ExtractFilePath( LFN );
|
739 |
|
|
if MaskDir = '' then
|
740 |
|
|
DirMatch := True
|
741 |
|
|
else
|
742 |
|
|
DirMatch := StPatternMatch( ExtractFilePath( LFN ), 1, MaskDir, 1 );
|
743 |
|
|
|
744 |
|
|
Result := DirMatch and StPatternMatch( ExtractFileName( LFN ), 1,
|
745 |
|
|
ExtractFileName( LFM ), 1 );
|
746 |
|
|
end;
|
747 |
|
|
|
748 |
|
|
{FileTimeToStDateTime}
|
749 |
|
|
function FileTimeToStDateTime(FileTime : LongInt) : TStDateTimeRec;
|
750 |
|
|
{-Converts a DOS date-time value to TStDate and TStTime values.}
|
751 |
|
|
|
752 |
|
|
var
|
753 |
|
|
DDT : TDateTime;
|
754 |
|
|
begin
|
755 |
|
|
DDT := FileDateToDateTime(FileTime);
|
756 |
|
|
Result.D := DateTimeToStDate(DDT);
|
757 |
|
|
Result.T := DateTimeToStTime(DDT);
|
758 |
|
|
end;
|
759 |
|
|
|
760 |
|
|
{FindNthSlash}
|
761 |
|
|
function FindNthSlash(const Path : String; n : Integer) : Integer;
|
762 |
|
|
{ return the position of the character just before the nth slash }
|
763 |
|
|
var
|
764 |
|
|
i : Integer;
|
765 |
|
|
Len : Integer;
|
766 |
|
|
iSlash : Integer;
|
767 |
|
|
begin
|
768 |
|
|
Len := Length( Path );
|
769 |
|
|
Result := Len;
|
770 |
|
|
iSlash := 0;
|
771 |
|
|
i := 1;
|
772 |
|
|
while i <= Len do begin
|
773 |
|
|
if Path[i] = StPathDelim then begin
|
774 |
|
|
inc( iSlash );
|
775 |
|
|
if iSlash = n then begin
|
776 |
|
|
Result := pred( i );
|
777 |
|
|
break;
|
778 |
|
|
end;
|
779 |
|
|
end;
|
780 |
|
|
inc( i );
|
781 |
|
|
end;
|
782 |
|
|
end;
|
783 |
|
|
|
784 |
|
|
{FlushOsBuffers}
|
785 |
|
|
{-Flush the OS buffers for the specified file handle.}
|
786 |
|
|
function FlushOsBuffers(Handle : Integer) : Boolean;
|
787 |
|
|
{-Flush the OS's buffers for the specified file}
|
788 |
|
|
begin
|
789 |
|
|
Result := FlushFileBuffers(Handle);
|
790 |
|
|
if not Result then
|
791 |
|
|
{$IFDEF Version6}
|
792 |
|
|
RaiseLastOSError;
|
793 |
|
|
{$ELSE}
|
794 |
|
|
RaiseLastWin32Error;
|
795 |
|
|
{$ENDIF}
|
796 |
|
|
end;
|
797 |
|
|
|
798 |
|
|
{GetCurrentUser}
|
799 |
|
|
function GetCurrentUser : String;
|
800 |
|
|
{-Obtains current logged in username}
|
801 |
|
|
var
|
802 |
|
|
Size : DWORD;
|
803 |
|
|
UserNameZ : array [0..511] of Char;
|
804 |
|
|
begin
|
805 |
|
|
Size := Length(UserNameZ);
|
806 |
|
|
if not GetUserName(UserNameZ, Size) then
|
807 |
|
|
{$IFDEF Version6}
|
808 |
|
|
RaiseLastOSError;
|
809 |
|
|
{$ELSE}
|
810 |
|
|
RaiseLastWin32Error;
|
811 |
|
|
{$ENDIF}
|
812 |
|
|
// SetString(Result, UserNameZ, Size); {!!.02}
|
813 |
|
|
SetString(Result, UserNameZ, StrLen(UserNameZ)); {!!.02}
|
814 |
|
|
end;
|
815 |
|
|
|
816 |
|
|
{GetDiskClass}
|
817 |
|
|
function GetDiskClass(Drive : Char) : DiskClass;
|
818 |
|
|
{-Return the disk class for the specified drive.}
|
819 |
|
|
type
|
820 |
|
|
TMediaType =
|
821 |
|
|
( Unknown, { Format is unknown }
|
822 |
|
|
F5_1Pt2_512, { 5.25", 1.2MB, 512 bytes/sector }
|
823 |
|
|
F3_1Pt44_512, { 3.5", 1.44MB, 512 bytes/sector }
|
824 |
|
|
F3_2Pt88_512, { 3.5", 2.88MB, 512 bytes/sector }
|
825 |
|
|
F3_20Pt8_512, { 3.5", 20.8MB, 512 bytes/sector }
|
826 |
|
|
F3_720_512, { 3.5", 720KB, 512 bytes/sector }
|
827 |
|
|
F5_360_512, { 5.25", 360KB, 512 bytes/sector }
|
828 |
|
|
F5_320_512, { 5.25", 320KB, 512 bytes/sector }
|
829 |
|
|
F5_320_1024, { 5.25", 320KB, 1024 bytes/sector }
|
830 |
|
|
F5_180_512, { 5.25", 180KB, 512 bytes/sector }
|
831 |
|
|
F5_160_512, { 5.25", 160KB, 512 bytes/sector }
|
832 |
|
|
RemovableMedia, { Removable media other than floppy }
|
833 |
|
|
FixedMedia ); { Fixed hard disk media }
|
834 |
|
|
|
835 |
|
|
PDiskGeometry = ^TDiskGeometry;
|
836 |
|
|
TDiskGeometry = record
|
837 |
|
|
Cylinders1 : DWORD;
|
838 |
|
|
Cylinders2 : Integer;
|
839 |
|
|
MediaType : TMediaType;
|
840 |
|
|
TracksPerCylinder : DWORD;
|
841 |
|
|
SectorsPerTrack : DWORD;
|
842 |
|
|
BytesPerSector : DWORD;
|
843 |
|
|
end;
|
844 |
|
|
|
845 |
|
|
var
|
846 |
|
|
Root : array[0..3] of Char;
|
847 |
|
|
Root2 : array[0..6] of Char;
|
848 |
|
|
ReturnedByteCount,
|
849 |
|
|
SectorsPerCluster,
|
850 |
|
|
BytesPerSector,
|
851 |
|
|
NumberOfFreeClusters,
|
852 |
|
|
TotalNumberOfClusters : DWORD;
|
853 |
|
|
SupportedGeometry : array[1..20] of TDiskGeometry;
|
854 |
|
|
HDevice : THandle;
|
855 |
|
|
I : Integer;
|
856 |
|
|
VerInfo : TOSVersionInfo;
|
857 |
|
|
Found : Boolean;
|
858 |
|
|
begin
|
859 |
|
|
FillChar(VerInfo, SizeOf(TOSVersionInfo), #0);
|
860 |
|
|
VerInfo.dwOSVersionInfoSize := SizeOf(TOSVersionInfo);
|
861 |
|
|
|
862 |
|
|
Result := InvalidDrive;
|
863 |
|
|
Found := False;
|
864 |
|
|
StrCopy(Root, '%:\');
|
865 |
|
|
Root[0] := Drive;
|
866 |
|
|
case GetDriveType(Root) of
|
867 |
|
|
0 : Result := UnknownDisk;
|
868 |
|
|
1 : Result := InvalidDrive;
|
869 |
|
|
DRIVE_REMOVABLE :
|
870 |
|
|
begin
|
871 |
|
|
GetVersionEx(VerInfo);
|
872 |
|
|
if VerInfo.dwPlatformID = VER_PLATFORM_WIN32_NT then begin
|
873 |
|
|
StrCopy(Root2, '\\.\%:');
|
874 |
|
|
Root2[4] := Drive;
|
875 |
|
|
HDevice := CreateFile(Root2, 0, FILE_SHARE_READ,
|
876 |
|
|
nil, OPEN_ALWAYS, 0, 0);
|
877 |
|
|
if HDevice = INVALID_HANDLE_VALUE then Exit;
|
878 |
|
|
if not DeviceIoControl(HDevice, IOCTL_DISK_GET_MEDIA_TYPES, nil, 0,
|
879 |
|
|
@SupportedGeometry, SizeOf(SupportedGeometry), ReturnedByteCount, nil)
|
880 |
|
|
then Exit;
|
881 |
|
|
for I := 1 to (ReturnedByteCount div SizeOf(TDiskGeometry)) do begin
|
882 |
|
|
case SupportedGeometry[I].MediaType of
|
883 |
|
|
F5_1Pt2_512 : begin
|
884 |
|
|
Result := Floppy12;
|
885 |
|
|
Exit;
|
886 |
|
|
end;
|
887 |
|
|
F3_1Pt44_512 : begin
|
888 |
|
|
Result := Floppy144;
|
889 |
|
|
Exit;
|
890 |
|
|
end;
|
891 |
|
|
F3_720_512 : begin
|
892 |
|
|
Result := Floppy720;
|
893 |
|
|
Found := True;
|
894 |
|
|
end;
|
895 |
|
|
F5_360_512 : begin
|
896 |
|
|
Result := Floppy360;
|
897 |
|
|
Found := True;
|
898 |
|
|
end;
|
899 |
|
|
end;
|
900 |
|
|
end;
|
901 |
|
|
if Found then Exit;
|
902 |
|
|
Result := OtherFloppy;
|
903 |
|
|
end else begin
|
904 |
|
|
GetDiskFreeSpace(Root, SectorsPerCluster, BytesPerSector,
|
905 |
|
|
NumberOfFreeClusters, TotalNumberOfClusters);
|
906 |
|
|
case TotalNumberOfClusters of
|
907 |
|
|
354 : Result := Floppy360;
|
908 |
|
|
713,
|
909 |
|
|
1422 : Result := Floppy720;
|
910 |
|
|
2371 : Result := Floppy12;
|
911 |
|
|
2847 : Result := Floppy144;
|
912 |
|
|
else Result := OtherFloppy;
|
913 |
|
|
end;
|
914 |
|
|
end;
|
915 |
|
|
end;
|
916 |
|
|
DRIVE_FIXED : Result := HardDisk;
|
917 |
|
|
DRIVE_REMOTE : Result := RemoteDrive;
|
918 |
|
|
DRIVE_CDROM : Result := CDRomDisk;
|
919 |
|
|
DRIVE_RAMDISK : Result := RamDisk;
|
920 |
|
|
end;
|
921 |
|
|
end;
|
922 |
|
|
|
923 |
|
|
{GetDiskInfo}
|
924 |
|
|
function GetDiskInfo(Drive : Char; var ClustersAvailable, TotalClusters,
|
925 |
|
|
BytesPerSector, SectorsPerCluster : Cardinal) : Boolean;
|
926 |
|
|
{-Return technical information about the specified drive.}
|
927 |
|
|
var
|
928 |
|
|
Root : String;
|
929 |
|
|
begin
|
930 |
|
|
if Drive <> ' ' then begin
|
931 |
|
|
Root := Char(System.Upcase(Drive)) + ':\';
|
932 |
|
|
Result := GetDiskFreeSpace(PChar(Root), DWORD(SectorsPerCluster),
|
933 |
|
|
DWORD(BytesPerSector), DWORD(ClustersAvailable), DWORD(TotalClusters));
|
934 |
|
|
end else
|
935 |
|
|
Result := GetDiskFreeSpace(nil, DWORD(SectorsPerCluster),
|
936 |
|
|
DWORD(BytesPerSector), DWORD(ClustersAvailable), DWORD(TotalClusters));
|
937 |
|
|
end;
|
938 |
|
|
|
939 |
|
|
|
940 |
|
|
{GetDiskSpace}
|
941 |
|
|
{$IFDEF CBuilder}
|
942 |
|
|
function GetDiskSpace(Drive : Char;
|
943 |
|
|
var UserSpaceAvail : Double; {space available to user}
|
944 |
|
|
var TotalSpaceAvail : Double; {total space available}
|
945 |
|
|
var DiskSize : Double) : Boolean;{disk size}
|
946 |
|
|
{-Return space information about the drive.}
|
947 |
|
|
type
|
948 |
|
|
TGetDiskFreeSpace = function (Drive : PChar;
|
949 |
|
|
var UserFreeBytes : Comp;
|
950 |
|
|
var TotalBytes : Comp;
|
951 |
|
|
var TotalFreeBytes : Comp) : Bool; stdcall;
|
952 |
|
|
LH = packed record L,H : word; end;
|
953 |
|
|
var
|
954 |
|
|
UserFree, Total, Size : Comp;
|
955 |
|
|
VerInfo : TOSVersionInfo;
|
956 |
|
|
LibHandle : THandle;
|
957 |
|
|
GDFS : TGetDiskFreeSpace;
|
958 |
|
|
Root : String;
|
959 |
|
|
begin
|
960 |
|
|
Result := False;
|
961 |
|
|
{get the version info}
|
962 |
|
|
FillChar(VerInfo, SizeOf(TOSVersionInfo), #0);
|
963 |
|
|
VerInfo.dwOSVersionInfoSize := SizeOf(VerInfo);
|
964 |
|
|
if GetVersionEx(VerInfo) then begin
|
965 |
|
|
with VerInfo do begin
|
966 |
|
|
if ((dwPlatformId = VER_PLATFORM_WIN32_WINDOWS) and
|
967 |
|
|
(LH(dwBuildNumber).L <> 1000)) or
|
968 |
|
|
((dwPlatformId = VER_PLATFORM_WIN32_NT) and
|
969 |
|
|
(dwMajorVersion >= 4)) then begin
|
970 |
|
|
LibHandle := LoadLibrary('KERNEL32.DLL');
|
971 |
|
|
try
|
972 |
|
|
if (LibHandle <> 0) then begin
|
973 |
|
|
@GDFS := GetProcAddress(LibHandle, 'GetDiskFreeSpaceEx'+{$IFDEF UNICODE}'W'{$ELSE}'A'{$ENDIF});
|
974 |
|
|
if Assigned(GDFS) then begin
|
975 |
|
|
Root := Char(Upcase(Drive)) + ':\';
|
976 |
|
|
if GDFS(PChar(Root), UserFree, Size, Total) then begin
|
977 |
|
|
UserSpaceAvail := UserFree;
|
978 |
|
|
DiskSize := Size;
|
979 |
|
|
TotalSpaceAvail := Total;
|
980 |
|
|
Result := true;
|
981 |
|
|
end;
|
982 |
|
|
end;
|
983 |
|
|
end;
|
984 |
|
|
|
985 |
|
|
finally
|
986 |
|
|
FreeLibrary(LibHandle);
|
987 |
|
|
end;
|
988 |
|
|
end;
|
989 |
|
|
end;
|
990 |
|
|
end;
|
991 |
|
|
end;
|
992 |
|
|
{$ELSE}
|
993 |
|
|
function GetDiskSpace(Drive : Char;
|
994 |
|
|
var UserSpaceAvail : Comp; {space available to user}
|
995 |
|
|
var TotalSpaceAvail : Comp; {total space available}
|
996 |
|
|
var DiskSize : Comp) : Boolean;{disk size}
|
997 |
|
|
{-Return space information about the drive.}
|
998 |
|
|
type
|
999 |
|
|
TGetDiskFreeSpace = function (Drive : PChar;
|
1000 |
|
|
var UserFreeBytes : Comp;
|
1001 |
|
|
var TotalBytes : Comp;
|
1002 |
|
|
var TotalFreeBytes : Comp) : Bool; stdcall;
|
1003 |
|
|
LH = packed record L,H : word; end;
|
1004 |
|
|
var
|
1005 |
|
|
CA, TC, BPS, SPC : Cardinal;
|
1006 |
|
|
VerInfo : TOSVersionInfo;
|
1007 |
|
|
LibHandle : THandle;
|
1008 |
|
|
GDFS : TGetDiskFreeSpace;
|
1009 |
|
|
Root : String;
|
1010 |
|
|
begin
|
1011 |
|
|
Result := false;
|
1012 |
|
|
{get the version info}
|
1013 |
|
|
FillChar(VerInfo, SizeOf(TOSVersionInfo), #0);
|
1014 |
|
|
VerInfo.dwOSVersionInfoSize := SizeOf(VerInfo);
|
1015 |
|
|
if GetVersionEx(VerInfo) then begin
|
1016 |
|
|
with VerInfo do begin
|
1017 |
|
|
if ((dwPlatformId = VER_PLATFORM_WIN32_WINDOWS) and
|
1018 |
|
|
(LH(dwBuildNumber).L <> 1000)) or
|
1019 |
|
|
((dwPlatformId = VER_PLATFORM_WIN32_NT) and
|
1020 |
|
|
(dwMajorVersion >= 4)) then begin
|
1021 |
|
|
LibHandle := LoadLibrary('KERNEL32.DLL');
|
1022 |
|
|
try
|
1023 |
|
|
if (LibHandle <> 0) then begin
|
1024 |
|
|
@GDFS := GetProcAddress(LibHandle, 'GetDiskFreeSpaceEx'+{$IFDEF UNICODE}'W'{$ELSE}'A'{$ENDIF});
|
1025 |
|
|
if Assigned(GDFS) then begin
|
1026 |
|
|
Root := Char(System.Upcase(Drive)) + ':\';
|
1027 |
|
|
if GDFS(PChar(Root), UserSpaceAvail, DiskSize, TotalSpaceAvail) then
|
1028 |
|
|
Result := true;
|
1029 |
|
|
end;
|
1030 |
|
|
end;
|
1031 |
|
|
|
1032 |
|
|
finally
|
1033 |
|
|
FreeLibrary(LibHandle);
|
1034 |
|
|
end;
|
1035 |
|
|
end;
|
1036 |
|
|
end;
|
1037 |
|
|
end;
|
1038 |
|
|
|
1039 |
|
|
if not Result then begin
|
1040 |
|
|
if GetDiskInfo(Drive, CA, TC, BPS, SPC) then begin
|
1041 |
|
|
Result := true;
|
1042 |
|
|
DiskSize := BPS;
|
1043 |
|
|
DiskSize := DiskSize * SPC * TC;
|
1044 |
|
|
TotalSpaceAvail := BPS;
|
1045 |
|
|
TotalSpaceAvail := TotalSpaceAvail * SPC * CA;
|
1046 |
|
|
UserSpaceAvail := TotalSpaceAvail;
|
1047 |
|
|
end;
|
1048 |
|
|
end;
|
1049 |
|
|
end;
|
1050 |
|
|
{$ENDIF}
|
1051 |
|
|
|
1052 |
|
|
function GetFileCreateDate(const FileName : String) :
|
1053 |
|
|
TDateTime;
|
1054 |
|
|
{-Obtains file system time of file creation.}
|
1055 |
|
|
{!!.01 - Rewritten}
|
1056 |
|
|
var
|
1057 |
|
|
Rslt : Integer;
|
1058 |
|
|
SR : TSearchRec;
|
1059 |
|
|
FTime : Integer;
|
1060 |
|
|
begin
|
1061 |
|
|
Result := 0.0;
|
1062 |
|
|
Rslt := FindFirst(FileName, faAnyFile, SR);
|
1063 |
|
|
if Rslt = 0 then begin
|
1064 |
|
|
{$IFDEF Version6} {$WARN SYMBOL_PLATFORM OFF} {$ENDIF}
|
1065 |
|
|
FileTimeToDosDateTime(SR.FindData.ftCreationTime,
|
1066 |
|
|
LongRec(FTime).Hi, LongRec(FTime).Lo);
|
1067 |
|
|
{$IFDEF Version6} {$WARN SYMBOL_PLATFORM ON} {$ENDIF}
|
1068 |
|
|
Result := FileDateToDateTime(FTime);
|
1069 |
|
|
FindClose(SR);
|
1070 |
|
|
end;
|
1071 |
|
|
{!!.01 - End Rewritten}
|
1072 |
|
|
end;
|
1073 |
|
|
|
1074 |
|
|
{GetFileLastAccess}
|
1075 |
|
|
function GetFileLastAccess(const FileName : String) :
|
1076 |
|
|
TDateTime;
|
1077 |
|
|
{-Obtains file system time of last file access.}
|
1078 |
|
|
{!!.01 - Rewritten}
|
1079 |
|
|
var
|
1080 |
|
|
Rslt : Integer;
|
1081 |
|
|
SR : TSearchRec;
|
1082 |
|
|
FTime : Integer;
|
1083 |
|
|
begin
|
1084 |
|
|
Result := 0.0;
|
1085 |
|
|
Rslt := FindFirst(FileName, faAnyFile, SR);
|
1086 |
|
|
if Rslt = 0 then begin
|
1087 |
|
|
{$IFDEF Version6} {$WARN SYMBOL_PLATFORM OFF} {$ENDIF}
|
1088 |
|
|
FileTimeToDosDateTime(SR.FindData.ftLastAccessTime,
|
1089 |
|
|
LongRec(FTime).Hi, LongRec(FTime).Lo);
|
1090 |
|
|
{$IFDEF Version6} {$WARN SYMBOL_PLATFORM ON} {$ENDIF}
|
1091 |
|
|
Result := FileDateToDateTime(FTime);
|
1092 |
|
|
FindClose(SR);
|
1093 |
|
|
end;
|
1094 |
|
|
{!!.01 - End Rewritten}
|
1095 |
|
|
end;
|
1096 |
|
|
|
1097 |
|
|
{GetFileLastModify}
|
1098 |
|
|
function GetFileLastModify(const FileName : String) :
|
1099 |
|
|
TDateTime;
|
1100 |
|
|
{-Obtains file system time of last file modification.}
|
1101 |
|
|
{!!.01 - Rewritten}
|
1102 |
|
|
var
|
1103 |
|
|
Rslt : Integer;
|
1104 |
|
|
SR : TSearchRec;
|
1105 |
|
|
FTime : Integer;
|
1106 |
|
|
begin
|
1107 |
|
|
Result := 0.0;
|
1108 |
|
|
Rslt := FindFirst(FileName, faAnyFile, SR);
|
1109 |
|
|
if Rslt = 0 then begin
|
1110 |
|
|
{$IFDEF Version6} {$WARN SYMBOL_PLATFORM OFF} {$ENDIF}
|
1111 |
|
|
FileTimeToDosDateTime(SR.FindData.ftLastWriteTime,
|
1112 |
|
|
LongRec(FTime).Hi, LongRec(FTime).Lo);
|
1113 |
|
|
{$IFDEF Version6} {$WARN SYMBOL_PLATFORM ON} {$ENDIF}
|
1114 |
|
|
Result := FileDateToDateTime(FTime);
|
1115 |
|
|
FindClose(SR);
|
1116 |
|
|
end;
|
1117 |
|
|
{!!.01 - End Rewritten}
|
1118 |
|
|
end;
|
1119 |
|
|
|
1120 |
|
|
{GetHomeFolder}
|
1121 |
|
|
function GetHomeFolder(aForceSlash : boolean) : String;
|
1122 |
|
|
{-Obtains the "Home Folder" for the current user}
|
1123 |
|
|
var
|
1124 |
|
|
Size : integer;
|
1125 |
|
|
Path : String;
|
1126 |
|
|
Buffer : PChar;
|
1127 |
|
|
begin
|
1128 |
|
|
Size := GetEnvironmentVariable('HOMEDRIVE', nil, 0);
|
1129 |
|
|
GetMem(Buffer, Size * SizeOf(Char));
|
1130 |
|
|
try
|
1131 |
|
|
SetString(Result, Buffer, GetEnvironmentVariable('HOMEDRIVE',
|
1132 |
|
|
Buffer, Size));
|
1133 |
|
|
finally
|
1134 |
|
|
FreeMem(Buffer);
|
1135 |
|
|
end;
|
1136 |
|
|
|
1137 |
|
|
Size := GetEnvironmentVariable('HOMEPATH', nil, 0);
|
1138 |
|
|
GetMem(Buffer, Size * SizeOf(Char));
|
1139 |
|
|
try
|
1140 |
|
|
SetString(Path, Buffer, GetEnvironmentVariable('HOMEPATH',
|
1141 |
|
|
Buffer, Size));
|
1142 |
|
|
finally
|
1143 |
|
|
FreeMem(Buffer);
|
1144 |
|
|
end;
|
1145 |
|
|
|
1146 |
|
|
if Path = '' then
|
1147 |
|
|
Path := GetWorkingFolder(aForceSlash);
|
1148 |
|
|
|
1149 |
|
|
if aForceSlash and (Result[length(Result)] <> StDosPathDelim) then
|
1150 |
|
|
Path := Path + StDosPathDelim;
|
1151 |
|
|
if (Path[1] <> StDosPathDelim) then
|
1152 |
|
|
Result := Result + StDosPathDelim + Path
|
1153 |
|
|
else
|
1154 |
|
|
Result := Result + Path;
|
1155 |
|
|
end;
|
1156 |
|
|
|
1157 |
|
|
function GetLongPathName(lpszShortPath: PChar; lpszLongPath: PChar;
|
1158 |
|
|
cchBuffer: DWORD): DWORD;
|
1159 |
|
|
var
|
1160 |
|
|
PathBuf : PChar;
|
1161 |
|
|
Len, i : Integer;
|
1162 |
|
|
FD : TWIN32FindData;
|
1163 |
|
|
FH : THandle;
|
1164 |
|
|
ResBuf : String;
|
1165 |
|
|
begin
|
1166 |
|
|
if not Assigned(lpszShortPath) then begin
|
1167 |
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
1168 |
|
|
Result := 0;
|
1169 |
|
|
Exit;
|
1170 |
|
|
end;
|
1171 |
|
|
|
1172 |
|
|
{ Check whether the input path is valid. }
|
1173 |
|
|
if (GetFileAttributes(lpszShortPath) = $FFFFFFFF) then begin
|
1174 |
|
|
Result := 0;
|
1175 |
|
|
Exit;
|
1176 |
|
|
end;
|
1177 |
|
|
|
1178 |
|
|
Len := StrLen(lpszShortPath);
|
1179 |
|
|
PathBuf := StrAlloc(Len + 1);
|
1180 |
|
|
try
|
1181 |
|
|
StrCopy(PathBuf, lpszShortPath);
|
1182 |
|
|
ResBuf := '';
|
1183 |
|
|
|
1184 |
|
|
i := 0;
|
1185 |
|
|
{ Check for Drive Letter }
|
1186 |
|
|
if (IsCharAlpha(PathBuf[0])) and (PathBuf[1] = DriveDelim) and (Len > 3) then begin
|
1187 |
|
|
repeat
|
1188 |
|
|
ResBuf := ResBuf + PathBuf[i];
|
1189 |
|
|
Inc(i);
|
1190 |
|
|
until PathBuf[i] = StPathDelim;
|
1191 |
|
|
ResBuf := ResBuf + StPathDelim;
|
1192 |
|
|
end;
|
1193 |
|
|
|
1194 |
|
|
{ Check for UNC Path }
|
1195 |
|
|
if (PathBuf[0] = StPathDelim) and (PathBuf[1] = StPathDelim) then begin
|
1196 |
|
|
{ extract machine name }
|
1197 |
|
|
ResBuf := '\\';
|
1198 |
|
|
i := 2;
|
1199 |
|
|
repeat
|
1200 |
|
|
ResBuf := ResBuf + PathBuf[i];
|
1201 |
|
|
Inc(i);
|
1202 |
|
|
until PathBuf[i] = StPathDelim;
|
1203 |
|
|
ResBuf := ResBuf + StPathDelim;
|
1204 |
|
|
Inc(i);
|
1205 |
|
|
|
1206 |
|
|
{ extract share name }
|
1207 |
|
|
repeat
|
1208 |
|
|
ResBuf := ResBuf + PathBuf[i];
|
1209 |
|
|
Inc(i);
|
1210 |
|
|
until PathBuf[i] = StPathDelim;
|
1211 |
|
|
ResBuf := ResBuf + StPathDelim;
|
1212 |
|
|
Inc(i);
|
1213 |
|
|
end;
|
1214 |
|
|
|
1215 |
|
|
{ move past current delimiter } {!!.01}
|
1216 |
|
|
Inc(i); {!!.01}
|
1217 |
|
|
|
1218 |
|
|
{ find next occurrence of path delimiter }
|
1219 |
|
|
while i < Len do begin
|
1220 |
|
|
if (PathBuf[i] = StPathDelim) then begin
|
1221 |
|
|
PathBuf[i] := #0;
|
1222 |
|
|
FH := FindFirstFile(PathBuf, FD);
|
1223 |
|
|
if FH <> INVALID_HANDLE_VALUE then begin
|
1224 |
|
|
ResBuf := ResBuf + StrPas(FD.cFileName) + StPathDelim;
|
1225 |
|
|
Windows.FindClose(FH);
|
1226 |
|
|
end;
|
1227 |
|
|
PathBuf[i] := StPathDelim;
|
1228 |
|
|
|
1229 |
|
|
end;
|
1230 |
|
|
Inc(i);
|
1231 |
|
|
end;
|
1232 |
|
|
|
1233 |
|
|
{ one mo' time for the entire string: }
|
1234 |
|
|
FH := FindFirstFile(PathBuf, FD);
|
1235 |
|
|
if FH <> INVALID_HANDLE_VALUE then begin
|
1236 |
|
|
ResBuf := ResBuf + StrPas(FD.cFileName);
|
1237 |
|
|
Windows.FindClose(FH);
|
1238 |
|
|
end;
|
1239 |
|
|
|
1240 |
|
|
Result := Length(ResBuf);
|
1241 |
|
|
|
1242 |
|
|
if Assigned(lpszLongPath) and (cchBuffer >= DWord(Length(ResBuf))) then begin
|
1243 |
|
|
StrPCopy(lpszLongPath, ResBuf);
|
1244 |
|
|
end;
|
1245 |
|
|
finally
|
1246 |
|
|
StrDispose(PathBuf);
|
1247 |
|
|
end;
|
1248 |
|
|
end;
|
1249 |
|
|
|
1250 |
|
|
{GetLongPath}
|
1251 |
|
|
function GetLongPath(const APath : String) : String;
|
1252 |
|
|
{-Returns the long filename version of a provided path.}
|
1253 |
|
|
var
|
1254 |
|
|
Size : integer;
|
1255 |
|
|
Buffer : PChar;
|
1256 |
|
|
begin
|
1257 |
|
|
Buffer := nil;
|
1258 |
|
|
Size := GetLongPathName(PChar(APath), Buffer, 0);
|
1259 |
|
|
Buffer := StrAlloc(Size);
|
1260 |
|
|
try
|
1261 |
|
|
SetString(Result, Buffer, GetLongPathName(PChar(APath), Buffer, Size));
|
1262 |
|
|
finally
|
1263 |
|
|
if Assigned(Buffer) then
|
1264 |
|
|
StrDispose(Buffer);
|
1265 |
|
|
end;
|
1266 |
|
|
end;
|
1267 |
|
|
|
1268 |
|
|
{GetMachineName}
|
1269 |
|
|
function GetMachineName : String;
|
1270 |
|
|
{-Returns the "Machine Name" for the current computer }
|
1271 |
|
|
var
|
1272 |
|
|
Size : DWORD;
|
1273 |
|
|
MachineNameZ : array [0..MAX_COMPUTERNAME_LENGTH] of Char;
|
1274 |
|
|
begin
|
1275 |
|
|
Size := Length(MachineNameZ);
|
1276 |
|
|
if not GetComputerName(MachineNameZ, Size) then
|
1277 |
|
|
{$IFDEF Version6}
|
1278 |
|
|
RaiseLastOSError;
|
1279 |
|
|
{$ELSE}
|
1280 |
|
|
RaiseLastWin32Error;
|
1281 |
|
|
{$ENDIF}
|
1282 |
|
|
// SetString(Result, MachineNameZ, Size); {!!.02}
|
1283 |
|
|
SetString(Result, MachineNameZ, StrLen(MachineNameZ)); {!!.02}
|
1284 |
|
|
end;
|
1285 |
|
|
|
1286 |
|
|
{GetMediaID}
|
1287 |
|
|
function GetMediaID(Drive : Char; var MediaIDRec : MediaIDType) : Cardinal;
|
1288 |
|
|
{-Get the media information (Volume Label, Serial Number) for the specified drive}
|
1289 |
|
|
var
|
1290 |
|
|
VolBuf, FSNameBuf : PChar;
|
1291 |
|
|
VolSiz, FSNSiz : Integer;
|
1292 |
|
|
Root : String;
|
1293 |
|
|
SN, ML, Flags : DWORD;
|
1294 |
|
|
begin
|
1295 |
|
|
VolSiz := Length(MediaIDRec.VolumeLabel){ + 1}; //SZ: why +1??
|
1296 |
|
|
FSNSiz := Length(MediaIDRec.FileSystemID){ + 1};
|
1297 |
|
|
|
1298 |
|
|
Root := Char(System.Upcase(Drive)) + ':\';
|
1299 |
|
|
|
1300 |
|
|
VolBuf := nil;
|
1301 |
|
|
FSNameBuf := nil;
|
1302 |
|
|
|
1303 |
|
|
try
|
1304 |
|
|
VolBuf := StrAlloc(VolSiz);
|
1305 |
|
|
FSNameBuf := StrAlloc(FSNSiz);
|
1306 |
|
|
Result := 0;
|
1307 |
|
|
if GetVolumeInformation(PChar(Root), VolBuf, VolSiz, @SN, ML, Flags, FSNameBuf, FSNSiz) then begin
|
1308 |
|
|
StrCopy(MediaIDRec.FileSystemID, FSNameBuf);
|
1309 |
|
|
StrCopy(MediaIDRec.VolumeLabel, VolBuf);
|
1310 |
|
|
MediaIDRec.SerialNumber := SN;
|
1311 |
|
|
|
1312 |
|
|
end else
|
1313 |
|
|
Result := GetLastError;
|
1314 |
|
|
finally
|
1315 |
|
|
if Assigned(VolBuf) then
|
1316 |
|
|
StrDispose(VolBuf);
|
1317 |
|
|
if Assigned(FSNameBuf) then
|
1318 |
|
|
StrDispose(FSNameBuf);
|
1319 |
|
|
end;
|
1320 |
|
|
end;
|
1321 |
|
|
|
1322 |
|
|
{!!.02 -- Added }
|
1323 |
|
|
function StAddBackSlash(const DirName : string) : string;
|
1324 |
|
|
{ Add a default slash to a directory name }
|
1325 |
|
|
const
|
1326 |
|
|
DelimSet : set of AnsiChar = [StPathDelim, ':', #0];
|
1327 |
|
|
begin
|
1328 |
|
|
Result := DirName;
|
1329 |
|
|
if Length(DirName) = 0 then
|
1330 |
|
|
Exit;
|
1331 |
|
|
{$IFDEF UNICODE}
|
1332 |
|
|
if not CharInSet(DirName[Length(DirName)], DelimSet) then
|
1333 |
|
|
Result := DirName + StPathDelim;
|
1334 |
|
|
{$ELSE}
|
1335 |
|
|
if not (DirName[Length(DirName)] in DelimSet) then
|
1336 |
|
|
Result := DirName + StPathDelim;
|
1337 |
|
|
{$ENDIF}
|
1338 |
|
|
end;
|
1339 |
|
|
{!!.02 -- End Added }
|
1340 |
|
|
|
1341 |
|
|
{GetParentFolder}
|
1342 |
|
|
function GetParentFolder(const APath : String; aForceSlash : Boolean) : String;
|
1343 |
|
|
{-return the parent directory for the provided directory }
|
1344 |
|
|
begin
|
1345 |
|
|
Result := ExpandFileName(StAddBackSlash(APath) + StParentDir); {!!.02}
|
1346 |
|
|
if aForceSlash and (Result[length(Result)] <> StDosPathDelim) then
|
1347 |
|
|
Result := Result + StDosPathDelim;
|
1348 |
|
|
end;
|
1349 |
|
|
|
1350 |
|
|
{GetShortPath}
|
1351 |
|
|
function GetShortPath(const APath : String) : String;
|
1352 |
|
|
{-Returns the short filename version of a provided path.}
|
1353 |
|
|
var
|
1354 |
|
|
Size : integer;
|
1355 |
|
|
Buffer : PChar;
|
1356 |
|
|
begin
|
1357 |
|
|
Buffer := nil;
|
1358 |
|
|
Size := GetShortPathName(PChar(APath), Buffer, 0);
|
1359 |
|
|
Buffer := StrAlloc(Size);
|
1360 |
|
|
try
|
1361 |
|
|
SetString(Result, Buffer, GetShortPathName(PChar(APath), Buffer, Size));
|
1362 |
|
|
finally
|
1363 |
|
|
if Assigned(Buffer) then
|
1364 |
|
|
StrDispose(Buffer);
|
1365 |
|
|
end;
|
1366 |
|
|
end;
|
1367 |
|
|
|
1368 |
|
|
{GetSystemFolder}
|
1369 |
|
|
function GetSystemFolder(aForceSlash : boolean) : String;
|
1370 |
|
|
{-Returns the path to the Windows "System" folder".}
|
1371 |
|
|
var
|
1372 |
|
|
Size : integer;
|
1373 |
|
|
Buffer : PChar;
|
1374 |
|
|
begin
|
1375 |
|
|
Size := GetSystemDirectory(nil, 0);
|
1376 |
|
|
Buffer := StrAlloc(Size);
|
1377 |
|
|
try
|
1378 |
|
|
SetString(Result, Buffer, GetSystemDirectory(Buffer, Size));
|
1379 |
|
|
finally
|
1380 |
|
|
StrDispose(Buffer);
|
1381 |
|
|
end;
|
1382 |
|
|
if aForceSlash and (Result[length(Result)] <> StDosPathDelim) then
|
1383 |
|
|
Result := Result + StDosPathDelim;
|
1384 |
|
|
end;
|
1385 |
|
|
|
1386 |
|
|
{GetTempFolder}
|
1387 |
|
|
function GetTempFolder(aForceSlash : boolean) : String;
|
1388 |
|
|
{-Returns the path to the system temporary folder.}
|
1389 |
|
|
var
|
1390 |
|
|
Size : integer;
|
1391 |
|
|
Buffer : PChar;
|
1392 |
|
|
begin
|
1393 |
|
|
Size := GetTempPath(0, nil);
|
1394 |
|
|
Buffer := StrAlloc(Size);
|
1395 |
|
|
try
|
1396 |
|
|
SetString(Result, Buffer, GetTempPath(Size, Buffer));
|
1397 |
|
|
finally
|
1398 |
|
|
StrDispose(Buffer);
|
1399 |
|
|
end;
|
1400 |
|
|
if aForceSlash and (Result[length(Result)] <> StDosPathDelim) then
|
1401 |
|
|
Result := Result + StDosPathDelim;
|
1402 |
|
|
end;
|
1403 |
|
|
|
1404 |
|
|
{GetWindowsFolder}
|
1405 |
|
|
function GetWindowsFolder(aForceSlash : boolean) : String;
|
1406 |
|
|
{-Returns the path to the main "Windows" folder.}
|
1407 |
|
|
var
|
1408 |
|
|
Size : integer;
|
1409 |
|
|
Buffer : PChar;
|
1410 |
|
|
begin
|
1411 |
|
|
Size := GetWindowsDirectory(nil, 0);
|
1412 |
|
|
Buffer := StrAlloc(Size);
|
1413 |
|
|
try
|
1414 |
|
|
SetString(Result, Buffer, GetWindowsDirectory(Buffer, Size));
|
1415 |
|
|
finally
|
1416 |
|
|
StrDispose(Buffer);
|
1417 |
|
|
end;
|
1418 |
|
|
if aForceSlash and (Result[length(Result)] <> StDosPathDelim) then
|
1419 |
|
|
Result := Result + StDosPathDelim;
|
1420 |
|
|
end;
|
1421 |
|
|
|
1422 |
|
|
{GetWorkingFolder}
|
1423 |
|
|
function GetWorkingFolder(aForceSlash : boolean) : String;
|
1424 |
|
|
{-Returns the current working directory.}
|
1425 |
|
|
begin
|
1426 |
|
|
Result := ExpandFileName(StThisDir);
|
1427 |
|
|
if aForceSlash and (Result[length(Result)] <> StDosPathDelim) then
|
1428 |
|
|
Result := Result + StDosPathDelim;
|
1429 |
|
|
end;
|
1430 |
|
|
|
1431 |
|
|
{GlobalDateTimeToLocal}
|
1432 |
|
|
function GlobalDateTimeToLocal(const UTC: TStDateTimeRec; MinOffset: Integer): TStDateTimeRec; {!!.02}
|
1433 |
|
|
{-adjusts a global date/time (UTC) to the local date/time}
|
1434 |
|
|
{$IFNDEF VERSION4}
|
1435 |
|
|
const
|
1436 |
|
|
TIME_ZONE_ID_INVALID = DWORD($FFFFFFFF);
|
1437 |
|
|
TIME_ZONE_ID_UNKNOWN = 0;
|
1438 |
|
|
TIME_ZONE_ID_STANDARD = 1;
|
1439 |
|
|
TIME_ZONE_ID_DAYLIGHT = 2;
|
1440 |
|
|
{$ENDIF}
|
1441 |
|
|
var
|
1442 |
|
|
Minutes : LongInt;
|
1443 |
|
|
TZ : TTimeZoneInformation;
|
1444 |
|
|
begin
|
1445 |
|
|
Minutes := (UTC.D * MinutesInDay) + (UTC.T div 60);
|
1446 |
|
|
case GetTimeZoneInformation(TZ) of
|
1447 |
|
|
TIME_ZONE_ID_UNKNOWN :
|
1448 |
|
|
Minutes := Minutes - TZ.Bias;
|
1449 |
|
|
TIME_ZONE_ID_INVALID :
|
1450 |
|
|
Minutes := Minutes - MinOffset;
|
1451 |
|
|
TIME_ZONE_ID_STANDARD:
|
1452 |
|
|
Minutes := Minutes - (TZ.Bias + TZ.StandardBias);
|
1453 |
|
|
TIME_ZONE_ID_DAYLIGHT:
|
1454 |
|
|
Minutes := Minutes - (TZ.Bias + TZ.DaylightBias);
|
1455 |
|
|
end;
|
1456 |
|
|
|
1457 |
|
|
Result.D := (Minutes div MinutesInDay);
|
1458 |
|
|
Result.T := ((Minutes mod MinutesInDay) * SecondsInMinute) + (UTC.T mod SecondsInMinute);
|
1459 |
|
|
end;
|
1460 |
|
|
|
1461 |
|
|
{IsDirectory}
|
1462 |
|
|
function IsDirectory(const DirName : String) : Boolean;
|
1463 |
|
|
{-Return true if DirName is a directory}
|
1464 |
|
|
var
|
1465 |
|
|
Attrs : DWORD; {!!.01}
|
1466 |
|
|
begin
|
1467 |
|
|
Result := False;
|
1468 |
|
|
Attrs := GetFileAttributes(PChar(DirName));
|
1469 |
|
|
if Attrs <> DWORD(-1) then {!!.01}
|
1470 |
|
|
Result := (FILE_ATTRIBUTE_DIRECTORY and Attrs <> 0);
|
1471 |
|
|
end;
|
1472 |
|
|
|
1473 |
|
|
{IsDirectoryEmpty}
|
1474 |
|
|
function IsDirectoryEmpty(const S : String) : Integer;
|
1475 |
|
|
{-checks if there are any entries in the directory}
|
1476 |
|
|
var
|
1477 |
|
|
SR : TSearchRec;
|
1478 |
|
|
R : Integer;
|
1479 |
|
|
DS : String;
|
1480 |
|
|
begin
|
1481 |
|
|
Result := 1;
|
1482 |
|
|
if IsDirectory(S) then begin
|
1483 |
|
|
DS := AddBackSlashL(S);
|
1484 |
|
|
R := Abs(FindFirst(DS + StDosAnyFile, faAnyFile, SR));
|
1485 |
|
|
if R <> 18 then begin
|
1486 |
|
|
if (R = 0) then
|
1487 |
|
|
repeat
|
1488 |
|
|
if (SR.Attr and faDirectory = faDirectory) then begin
|
1489 |
|
|
if (SR.Name <> StThisDir) and (SR.Name <> StParentDir) then begin
|
1490 |
|
|
Result := 0;
|
1491 |
|
|
break;
|
1492 |
|
|
end;
|
1493 |
|
|
end else begin
|
1494 |
|
|
Result := 0;
|
1495 |
|
|
break;
|
1496 |
|
|
end;
|
1497 |
|
|
R := Abs(FindNext(SR));
|
1498 |
|
|
until R = 18;
|
1499 |
|
|
end;
|
1500 |
|
|
FindClose(SR);
|
1501 |
|
|
end else
|
1502 |
|
|
Result := -1;
|
1503 |
|
|
end;
|
1504 |
|
|
|
1505 |
|
|
{IsDriveReady}
|
1506 |
|
|
function IsDriveReady(Drive : Char) : Boolean;
|
1507 |
|
|
{-determine if requested drive is accessible }
|
1508 |
|
|
var
|
1509 |
|
|
Root : String;
|
1510 |
|
|
VolName : PChar;
|
1511 |
|
|
Flags, MaxLength : DWORD;
|
1512 |
|
|
NameSize : Integer;
|
1513 |
|
|
begin
|
1514 |
|
|
Result := False;
|
1515 |
|
|
NameSize := 0;
|
1516 |
|
|
Root := System.Upcase(Drive) + ':\' ;
|
1517 |
|
|
VolName := StrAlloc(MAX_PATH);
|
1518 |
|
|
|
1519 |
|
|
try
|
1520 |
|
|
if GetVolumeInformation(PChar(Root), VolName, MAX_PATH,
|
1521 |
|
|
nil, MaxLength, Flags, nil, NameSize) then
|
1522 |
|
|
Result := True;
|
1523 |
|
|
finally
|
1524 |
|
|
if Assigned(VolName) then
|
1525 |
|
|
StrDispose(VolName);
|
1526 |
|
|
end;
|
1527 |
|
|
end;
|
1528 |
|
|
|
1529 |
|
|
{IsFile}
|
1530 |
|
|
function IsFile(const FileName : String) : Boolean;
|
1531 |
|
|
{-Determines if the provided path specifies a file.}
|
1532 |
|
|
var
|
1533 |
|
|
Attrs : DWORD; {!!.02}
|
1534 |
|
|
begin
|
1535 |
|
|
Result := False;
|
1536 |
|
|
Attrs := GetFileAttributes(PChar(FileName));
|
1537 |
|
|
if Attrs <> DWORD(-1) then {!!.02}
|
1538 |
|
|
Result := (Attrs and FILE_ATTRIBUTE_DIRECTORY) <> FILE_ATTRIBUTE_DIRECTORY;
|
1539 |
|
|
end;
|
1540 |
|
|
|
1541 |
|
|
{IsFileArchive}
|
1542 |
|
|
function IsFileArchive(const S : String) : Integer;
|
1543 |
|
|
{-checks if file's archive attribute is set}
|
1544 |
|
|
begin
|
1545 |
|
|
{$IFDEF Version6} {$WARN SYMBOL_PLATFORM OFF} {$ENDIF}
|
1546 |
|
|
if FileExists(S) then
|
1547 |
|
|
Result := Integer((FileGetAttr(S) and faArchive) = faArchive)
|
1548 |
|
|
else
|
1549 |
|
|
Result := -1;
|
1550 |
|
|
{$IFDEF Version6} {$WARN SYMBOL_PLATFORM ON} {$ENDIF}
|
1551 |
|
|
end;
|
1552 |
|
|
|
1553 |
|
|
{IsFileHidden}
|
1554 |
|
|
function IsFileHidden(const S : String) : Integer;
|
1555 |
|
|
{-checks if file's hidden attribute is set}
|
1556 |
|
|
begin
|
1557 |
|
|
{$IFDEF Version6} {$WARN SYMBOL_PLATFORM OFF} {$ENDIF}
|
1558 |
|
|
if FileExists(S) then
|
1559 |
|
|
Result := Integer((FileGetAttr(S) and faHidden) = faHidden)
|
1560 |
|
|
else
|
1561 |
|
|
Result := -1;
|
1562 |
|
|
{$IFDEF Version6} {$WARN SYMBOL_PLATFORM ON} {$ENDIF}
|
1563 |
|
|
end;
|
1564 |
|
|
|
1565 |
|
|
{IsFileReadOnly}
|
1566 |
|
|
function IsFileReadOnly(const S : String) : Integer;
|
1567 |
|
|
{-checks if file's readonly attribute is set}
|
1568 |
|
|
begin
|
1569 |
|
|
{$IFDEF Version6} {$WARN SYMBOL_PLATFORM OFF} {$ENDIF}
|
1570 |
|
|
if FileExists(S) then
|
1571 |
|
|
Result := Integer((FileGetAttr(S) and faReadOnly) = faReadOnly)
|
1572 |
|
|
else
|
1573 |
|
|
Result := -1;
|
1574 |
|
|
{$IFDEF Version6} {$WARN SYMBOL_PLATFORM ON} {$ENDIF}
|
1575 |
|
|
end;
|
1576 |
|
|
|
1577 |
|
|
{IsFileSystem}
|
1578 |
|
|
function IsFileSystem(const S : String) : Integer;
|
1579 |
|
|
{-checks if file's system attribute is set}
|
1580 |
|
|
begin
|
1581 |
|
|
{$IFDEF Version6} {$WARN SYMBOL_PLATFORM OFF} {$ENDIF}
|
1582 |
|
|
if FileExists(S) then
|
1583 |
|
|
Result := Integer((FileGetAttr(S) and faSysFile) = faSysFile)
|
1584 |
|
|
else
|
1585 |
|
|
Result := -1;
|
1586 |
|
|
{$IFDEF Version6} {$WARN SYMBOL_PLATFORM ON} {$ENDIF}
|
1587 |
|
|
end;
|
1588 |
|
|
|
1589 |
|
|
{LocalDateTimeToGlobal}
|
1590 |
|
|
function LocalDateTimeToGlobal(const DT1: TStDateTimeRec; MinOffset: Integer): TStDateTimeRec; {!!.02}
|
1591 |
|
|
{-adjusts a local date/time to the global (UTC) date/time}
|
1592 |
|
|
{$IFNDEF VERSION4}
|
1593 |
|
|
const
|
1594 |
|
|
TIME_ZONE_ID_INVALID = DWORD($FFFFFFFF);
|
1595 |
|
|
TIME_ZONE_ID_UNKNOWN = 0;
|
1596 |
|
|
TIME_ZONE_ID_STANDARD = 1;
|
1597 |
|
|
TIME_ZONE_ID_DAYLIGHT = 2;
|
1598 |
|
|
{$ENDIF}
|
1599 |
|
|
var
|
1600 |
|
|
Minutes : LongInt;
|
1601 |
|
|
TZ : TTimeZoneInformation;
|
1602 |
|
|
begin
|
1603 |
|
|
Minutes := (DT1.D * MinutesInDay) + (DT1.T div 60);
|
1604 |
|
|
case GetTimeZoneInformation(TZ) of
|
1605 |
|
|
TIME_ZONE_ID_UNKNOWN : { Time Zone transition dates not used }
|
1606 |
|
|
Minutes := Minutes + TZ.Bias;
|
1607 |
|
|
TIME_ZONE_ID_INVALID :
|
1608 |
|
|
Minutes := Minutes + MinOffset;
|
1609 |
|
|
TIME_ZONE_ID_STANDARD:
|
1610 |
|
|
Minutes := Minutes + (TZ.Bias + TZ.StandardBias);
|
1611 |
|
|
TIME_ZONE_ID_DAYLIGHT:
|
1612 |
|
|
Minutes := Minutes + (TZ.Bias + TZ.DaylightBias);
|
1613 |
|
|
end;
|
1614 |
|
|
|
1615 |
|
|
Result.D := (Minutes div MinutesInDay);
|
1616 |
|
|
Result.T := ((Minutes mod MinutesInDay) * SecondsInMinute) + (DT1.T mod SecondsInMinute);
|
1617 |
|
|
end;
|
1618 |
|
|
|
1619 |
|
|
{ReadVolumeLabel}
|
1620 |
|
|
function ReadVolumeLabel(var VolName : String; Drive : Char) : Cardinal;
|
1621 |
|
|
{-Get the volume label for the specified drive.}
|
1622 |
|
|
var
|
1623 |
|
|
Root : String;
|
1624 |
|
|
Flags, MaxLength : DWORD;
|
1625 |
|
|
NameSize : Integer;
|
1626 |
|
|
begin
|
1627 |
|
|
NameSize := 0;
|
1628 |
|
|
Root := Drive + ':\';
|
1629 |
|
|
if Length(VolName) < 12 then
|
1630 |
|
|
SetLength(VolName, 12);
|
1631 |
|
|
if GetVolumeInformation(PChar(Root), PChar(VolName), Length(VolName),
|
1632 |
|
|
nil, MaxLength, Flags, nil, NameSize)
|
1633 |
|
|
then begin
|
1634 |
|
|
SetLength(VolName, StrLen(PChar(VolName)));
|
1635 |
|
|
Result := 0;
|
1636 |
|
|
end
|
1637 |
|
|
else begin
|
1638 |
|
|
VolName := '';
|
1639 |
|
|
Result := GetLastError;
|
1640 |
|
|
end;
|
1641 |
|
|
end;
|
1642 |
|
|
|
1643 |
|
|
{SameFile}
|
1644 |
|
|
function SameFile(const FilePath1, FilePath2 : String;
|
1645 |
|
|
var ErrorCode : Integer) : Boolean;
|
1646 |
|
|
{-Return true if FilePath1 and FilePath2 refer to the same physical file.
|
1647 |
|
|
Error codes:
|
1648 |
|
|
0 - Success (no error)
|
1649 |
|
|
1 - Invalid FilePath1
|
1650 |
|
|
2 - Invalid FilePath2
|
1651 |
|
|
3 - Error on FileSetAttr/FileGetAttr }
|
1652 |
|
|
var
|
1653 |
|
|
Attr1, Attr2, NewAttr : Integer;
|
1654 |
|
|
|
1655 |
|
|
|
1656 |
|
|
function DirectoryExists(const Name : String): Boolean;
|
1657 |
|
|
var
|
1658 |
|
|
Code : DWORD; {!!.02}
|
1659 |
|
|
Buf : array[0..MAX_PATH] of Char; {!!.01}
|
1660 |
|
|
begin
|
1661 |
|
|
StrPLCopy(Buf, Name, Length(Buf)-1);
|
1662 |
|
|
Code := GetFileAttributes(Buf);
|
1663 |
|
|
Result := (Code <> DWORD(-1)) and {!!.02}
|
1664 |
|
|
(FILE_ATTRIBUTE_DIRECTORY and Code <> 0); {!!.02}
|
1665 |
|
|
end;
|
1666 |
|
|
|
1667 |
|
|
begin
|
1668 |
|
|
{$IFDEF Version6} {$WARN SYMBOL_PLATFORM OFF} {$ENDIF}
|
1669 |
|
|
Result := False;
|
1670 |
|
|
ErrorCode := 0;
|
1671 |
|
|
Attr1 := FileGetAttr(FilePath1);
|
1672 |
|
|
if Attr1 < 0 then begin
|
1673 |
|
|
ErrorCode := 1;
|
1674 |
|
|
Exit;
|
1675 |
|
|
end;
|
1676 |
|
|
Attr2 := FileGetAttr(FilePath2);
|
1677 |
|
|
if Attr2 < 0 then begin
|
1678 |
|
|
{leave ErrorCode at 0 if file not found but path is valid}
|
1679 |
|
|
if not DirectoryExists(ExtractFilePath(FilePath2)) then
|
1680 |
|
|
ErrorCode := 2;
|
1681 |
|
|
Exit;
|
1682 |
|
|
end;
|
1683 |
|
|
if Attr1 <> Attr2 then
|
1684 |
|
|
Exit;
|
1685 |
|
|
if ((Attr1 and faArchive) = 0) then
|
1686 |
|
|
NewAttr := Attr1 or faArchive
|
1687 |
|
|
else
|
1688 |
|
|
NewAttr := Attr1 and (not faArchive);
|
1689 |
|
|
if FileSetAttr(FilePath1, NewAttr) <> 0 then begin
|
1690 |
|
|
ErrorCode := 3;
|
1691 |
|
|
Exit;
|
1692 |
|
|
end;
|
1693 |
|
|
Attr2 := FileGetAttr(FilePath2);
|
1694 |
|
|
if Attr2 < 0 then
|
1695 |
|
|
ErrorCode := 3;
|
1696 |
|
|
|
1697 |
|
|
Result := (Attr2 = NewAttr) or (Attr2 = $80);
|
1698 |
|
|
{ If the attribute is set to $00, Win32 automatically sets it to $80. }
|
1699 |
|
|
|
1700 |
|
|
if FileSetAttr(FilePath1, Attr1) <> 0 then
|
1701 |
|
|
ErrorCode := 3;
|
1702 |
|
|
{$IFDEF Version6} {$WARN SYMBOL_PLATFORM ON} {$ENDIF}
|
1703 |
|
|
end;
|
1704 |
|
|
|
1705 |
|
|
{SetMediaID} {!!!! Does not work on NT/2000 !!!!}
|
1706 |
|
|
function SetMediaID(Drive : Char; var MediaIDRec : MediaIDType) : Cardinal;
|
1707 |
|
|
{-Set the media ID record for the specified drive.}
|
1708 |
|
|
type
|
1709 |
|
|
DevIOCtlRegisters = record
|
1710 |
|
|
reg_EBX : LongInt;
|
1711 |
|
|
reg_EDX : LongInt;
|
1712 |
|
|
reg_ECX : LongInt;
|
1713 |
|
|
reg_EAX : LongInt;
|
1714 |
|
|
reg_EDI : LongInt;
|
1715 |
|
|
reg_ESI : LongInt;
|
1716 |
|
|
reg_Flags : LongInt;
|
1717 |
|
|
end;
|
1718 |
|
|
var
|
1719 |
|
|
PMid : PMediaIDType;
|
1720 |
|
|
Regs : DevIOCtlRegisters;
|
1721 |
|
|
CB : DWord;
|
1722 |
|
|
HDevice : THandle;
|
1723 |
|
|
SA : TSecurityAttributes;
|
1724 |
|
|
begin
|
1725 |
|
|
PMid := @MediaIDRec;
|
1726 |
|
|
with SA do begin
|
1727 |
|
|
nLength := SizeOf(SA);
|
1728 |
|
|
lpSecurityDescriptor := nil;
|
1729 |
|
|
bInheritHandle := True;
|
1730 |
|
|
end;
|
1731 |
|
|
with Regs do begin
|
1732 |
|
|
reg_EAX := $440D;
|
1733 |
|
|
reg_EBX := Ord(System.UpCase(Drive)) - (Ord('A') - 1);
|
1734 |
|
|
reg_ECX := $0846;
|
1735 |
|
|
reg_EDX := LongInt(PMid);
|
1736 |
|
|
end;
|
1737 |
|
|
HDevice := CreateFile('\\.\vwin32', GENERIC_READ, FILE_SHARE_READ or FILE_SHARE_WRITE,
|
1738 |
|
|
Pointer(@SA), OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
|
1739 |
|
|
if HDevice <> INVALID_HANDLE_VALUE then begin
|
1740 |
|
|
if DeviceIOControl(HDevice, VWIN32_DIOC_DOS_IOCTL, Pointer(@Regs), SizeOf(Regs),
|
1741 |
|
|
Pointer(@Regs), SizeOf(Regs), CB, nil)
|
1742 |
|
|
then
|
1743 |
|
|
Result := 0
|
1744 |
|
|
else
|
1745 |
|
|
Result := GetLastError;
|
1746 |
|
|
CloseHandle(HDevice);
|
1747 |
|
|
end else
|
1748 |
|
|
Result := GetLastError;
|
1749 |
|
|
end;
|
1750 |
|
|
|
1751 |
|
|
{SplitPath}
|
1752 |
|
|
procedure SplitPath(const APath : String; Parts : TStrings);
|
1753 |
|
|
{-Splits the provided path into its component sub-paths}
|
1754 |
|
|
var
|
1755 |
|
|
i : Integer;
|
1756 |
|
|
iStart : Integer;
|
1757 |
|
|
iStartSlash : Integer;
|
1758 |
|
|
Path, SubPath : String;
|
1759 |
|
|
begin
|
1760 |
|
|
Path := APath;
|
1761 |
|
|
if Path = '' then Exit;
|
1762 |
|
|
if not Assigned(Parts) then Exit;
|
1763 |
|
|
|
1764 |
|
|
if Path[ Length( Path ) ] = StPathDelim then
|
1765 |
|
|
Delete( Path, Length( APath ), 1 );
|
1766 |
|
|
iStart := 1;
|
1767 |
|
|
iStartSlash := 1;
|
1768 |
|
|
repeat
|
1769 |
|
|
{find the Slash at iStartSlash}
|
1770 |
|
|
i := FindNthSlash( Path, iStartSlash );
|
1771 |
|
|
{get the subpath}
|
1772 |
|
|
SubPath := Copy( Path, iStart, i - iStart + 1 );
|
1773 |
|
|
iStart := i + 2;
|
1774 |
|
|
inc( iStartSlash );
|
1775 |
|
|
Parts.Add( SubPath );
|
1776 |
|
|
until ( i = Length( Path ) );
|
1777 |
|
|
end;
|
1778 |
|
|
|
1779 |
|
|
{StDateTimeToFileTime}
|
1780 |
|
|
function StDateTimeToFileTime(const FileTime : TStDateTimeRec) : LongInt; {!!.02}
|
1781 |
|
|
{-Converts an TStDate and TStTime to a DOS date-time value.}
|
1782 |
|
|
var
|
1783 |
|
|
DDT : TDateTime;
|
1784 |
|
|
begin
|
1785 |
|
|
DDT := Int(StDateToDateTime(FileTime.D)) + Frac(StTimeToDateTime(FileTime.T));
|
1786 |
|
|
Result := DateTimeToFileDate(DDT);
|
1787 |
|
|
end;
|
1788 |
|
|
|
1789 |
|
|
{StDateTimeToUnixTime}
|
1790 |
|
|
function StDateTimeToUnixTime(const DT1 : TStDateTimeRec) : Longint; {!!.02}
|
1791 |
|
|
{-converts a TStDateTimeRec to a time in Unix base (1970)}
|
1792 |
|
|
begin
|
1793 |
|
|
Result := ((DT1.D - Date1970) * SecondsInDay) + DT1.T;
|
1794 |
|
|
end;
|
1795 |
|
|
|
1796 |
|
|
{UnixTimeToStDateTime}
|
1797 |
|
|
function UnixTimeToStDateTime(UnixTime : Longint) : TStDateTimeRec;
|
1798 |
|
|
{-converts a time in Unix base (1970) to a TStDateTimeRec}
|
1799 |
|
|
begin
|
1800 |
|
|
Result.D := Date1970 + (UnixTime div SecondsInDay);
|
1801 |
|
|
Result.T := UnixTime mod SecondsInDay;
|
1802 |
|
|
end;
|
1803 |
|
|
|
1804 |
|
|
{ValidDrive}
|
1805 |
|
|
function ValidDrive(Drive : Char) : Boolean;
|
1806 |
|
|
{-Determine if the drive is a valid drive.}
|
1807 |
|
|
var
|
1808 |
|
|
DriveBits : LongInt;
|
1809 |
|
|
DriveLtr : Char;
|
1810 |
|
|
begin
|
1811 |
|
|
DriveLtr := System.UpCase(Drive);
|
1812 |
|
|
DriveBits := GetLogicalDrives shr (Ord(DriveLtr)-Ord('A'));
|
1813 |
|
|
Result := LongFlagIsSet(DriveBits, $00000001);
|
1814 |
|
|
end;
|
1815 |
|
|
|
1816 |
|
|
{WriteVolumeLabel}
|
1817 |
|
|
function WriteVolumeLabel(const VolName : String; Drive : Char) : Cardinal;
|
1818 |
|
|
{-Sets the volume label for the specified drive.}
|
1819 |
|
|
var
|
1820 |
|
|
Temp : String;
|
1821 |
|
|
Vol : array[0..11] of Char;
|
1822 |
|
|
Root : array[0..3] of Char;
|
1823 |
|
|
begin
|
1824 |
|
|
Temp := VolName;
|
1825 |
|
|
StrCopy(Root, '%:\');
|
1826 |
|
|
Root[0] := Drive;
|
1827 |
|
|
if Length(Temp) > 11 then
|
1828 |
|
|
SetLength(Temp, 11);
|
1829 |
|
|
StrPCopy(Vol, Temp);
|
1830 |
|
|
if Windows.SetVolumeLabel(Root, Vol) then
|
1831 |
|
|
Result := 0
|
1832 |
|
|
else Result := GetLastError;
|
1833 |
|
|
end;
|
1834 |
|
|
|
1835 |
|
|
|
1836 |
|
|
end.
|
1837 |
|
|
|
1838 |
|
|
|
1839 |
|
|
|
1840 |
|
|
|
1841 |
|
|
|
1842 |
|
|
|
1843 |
|
|
|