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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: StNetPfm.pas 4.04 *}
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{*********************************************************}
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{* SysTools: Net Performance Class *}
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{*********************************************************}
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{$I StDefine.inc}
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{$H+} {Huge strings}
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unit StNetPfm;
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interface
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uses
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Windows, Classes, StBase;
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type
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TStCPFlags = (cpfForNetCard, cpfNotRouted, cpfSlowLink, cpfDynamic);
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TStCPFlagsSet = set of TStCPFlags;
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TStNetPerformance = class(TStComponent)
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private { Private Methods/Properties }
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FGotData : Boolean;
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{ Input }
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FLocalName : string;
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FRemoteName : string;
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FProviderName: string;
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{ Output }
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FFlags : TStCPFlagsSet;
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FSpeed : DWord;
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FDelay : DWord;
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FOptDataSize : DWord;
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protected { Protected Methods/Properties }
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function GetFlags: TStCPFlagsSet;
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function GetSpeed: DWord;
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function GetDelay: DWord;
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function GetOptDataSize : DWord;
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procedure SetLocalName(Value: string);
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procedure SetRemoteName(Value: string);
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procedure SetProviderName(Value: string);
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public { Public Methods/Properties }
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procedure QueryPerformance;
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property Flags: TStCPFlagsSet read GetFlags;
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property Speed: DWord read GetSpeed;
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property Delay: DWord read GetDelay;
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property OptDataSize: DWord read GetOptDataSize;
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published { Published Methods/Properties }
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property LocalName: string
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read FLocalName write SetLocalName;
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property RemoteName: string
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read FRemoteName write SetRemoteName;
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property ProviderName: string
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read FProviderName write SetProviderName;
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end;
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implementation
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uses
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SysUtils;
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procedure TStNetPerformance.QueryPerformance;
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var
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Err : DWord;
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NR : TNetResource;
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CI : TNetConnectInfoStruct;
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begin
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FillChar(NR, SizeOf(NR), 0);
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FillChar(CI, SizeOf(CI), 0);
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if FLocalName <> '' then
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NR.lpLocalName := PChar(FLocalName)
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else
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NR.lpRemoteName := PChar(FRemoteName);
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if Length(FProviderName) > 0 then
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NR.lpProvider := PChar(FProviderName);
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CI.cbStructure := SizeOf(CI);
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Err := MultinetGetConnectionPerformance(@NR, @CI);
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if Err = NO_ERROR then begin
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FFlags := [];
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if (CI.dwFlags and WNCON_FORNETCARD) = WNCON_FORNETCARD then
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Include(FFlags, cpfForNetCard);
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if (CI.dwFlags and WNCON_NOTROUTED) = WNCON_NOTROUTED then
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Include(FFlags, cpfNotRouted);
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if (CI.dwFlags and WNCON_SLOWLINK) = WNCON_SLOWLINK then
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Include(FFlags, cpfSlowLink);
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if (CI.dwFlags and WNCON_DYNAMIC) = WNCON_DYNAMIC then
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Include(FFlags, cpfDynamic);
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FSpeed := CI.dwSpeed;
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FDelay := CI.dwDelay;
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FOptDataSize := CI.dwOptDataSize;
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FGotData := True;
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end else
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RaiseStWin32Error(EStNetException, Err);
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end;
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function TStNetPerformance.GetFlags: TStCPFlagsSet;
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begin
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if not FGotData then
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QueryPerformance;
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Result := FFlags;
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end;
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function TStNetPerformance.GetSpeed: DWord;
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begin
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if not FGotData then
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QueryPerformance;
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Result := FSpeed;
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end;
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function TStNetPerformance.GetDelay: DWord;
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begin
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if not FGotData then
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QueryPerformance;
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Result := FDelay;
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end;
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function TStNetPerformance.GetOptDataSize : DWord;
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begin
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if not FGotData then
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QueryPerformance;
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Result := FOptDataSize;
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end;
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procedure TStNetPerformance.SetLocalName(Value: string);
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begin
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if Value <> FLocalName then begin
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FLocalName := Value;
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FGotData := False;
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end;
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end;
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procedure TStNetPerformance.SetRemoteName(Value: string);
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begin
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if Value <> FRemoteName then begin
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FRemoteName := Value;
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FGotData := False;
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end;
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end;
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procedure TStNetPerformance.SetProviderName(Value: string);
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begin
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if Value <> FProviderName then begin
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FProviderName := Value;
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FGotData := False;
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end;
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end;
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end.
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