source/COM/_StExpr.pas

(* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is TurboPower SysTools
 *
 * The Initial Developer of the Original Code is
 * TurboPower Software
 *
 * Portions created by the Initial Developer are Copyright (C) 1996-2002
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * ***** END LICENSE BLOCK ***** *)

{*********************************************************}
{*                   _STEXPR.PAS 3.00                    *}
{*********************************************************}

{$I STDEFINE.INC}
{$I STCOMDEF.INC}
unit _StExpr;

interface

uses
  ComObj, ActiveX, SysTools_TLB, StdVcl;

type
  TStExpr = class(TAutoObject, IStExpr)
   private
    FIsLicensed : Boolean;
   public
    procedure Initialize; override;
   protected { Protected declarations }
    { IStExpr methods }
    function AnalyzeExpr(const Expr: WideString): Double; safecall;
    function License(const Key: WideString): WordBool; safecall;
    { Protected declarations }
  end;

implementation

{$DEFINE UseMathUnit}
uses ComServ, StExpr {$IFDEF LICENSE}, StComLic {$ENDIF};

procedure TStExpr.Initialize;
begin
  inherited Initialize;
  {$IFDEF LICENSE}
  FIsLicensed := False;
  {$ELSE}
  FIsLicensed := True;
  {$ENDIF}
end;

{ ********** TStExpr Methods ************************************************************* }
function TStExpr.AnalyzeExpr(const Expr: WideString): Double;
begin
  {$IFDEF LICENSE}
   if (not FIsLicensed) or (not COMHasBeenLicensed) then
     OleError(CLASS_E_NOTLICENSED);
  {$ENDIF}
  Result := StExpr.AnalyzeExpr(Expr);
end;

function TStExpr.License(const Key: WideString): WordBool;
begin
  {$IFDEF LICENSE}
  Result := COMIsValidKey(Key);
  {$ELSE}
  Result := True;
  {$ENDIF}
  FIsLicensed := Result;
end;

initialization
  TAutoObjectFactory.Create(ComServer, TStExpr, Class_StExpr, ciMultiInstance, tmBoth);
end.

1	torben	2671	(* *** BEGIN LICENSE BLOCK ***
2			* Version: MPL 1.1
3			*
4			* The contents of this file are subject to the Mozilla Public License Version
5			* 1.1 (the "License"); you may not use this file except in compliance with
6			* the License. You may obtain a copy of the License at
7			* http://www.mozilla.org/MPL/
8			*
9			* Software distributed under the License is distributed on an "AS IS" basis,
10			* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
11			* for the specific language governing rights and limitations under the
12			* License.
13			*
14			* The Original Code is TurboPower SysTools
15			*
16			* The Initial Developer of the Original Code is
17			* TurboPower Software
18			*
19			* Portions created by the Initial Developer are Copyright (C) 1996-2002
20			* the Initial Developer. All Rights Reserved.
21			*
22			* Contributor(s):
23			*
24			* *** END LICENSE BLOCK *** *)
25
26			{*********************************************************}
27			{* _STEXPR.PAS 3.00 *}
28			{*********************************************************}
29
30			{$I STDEFINE.INC}
31			{$I STCOMDEF.INC}
32			unit _StExpr;
33
34			interface
35
36			uses
37			ComObj, ActiveX, SysTools_TLB, StdVcl;
38
39			type
40			TStExpr = class(TAutoObject, IStExpr)
41			private
42			FIsLicensed : Boolean;
43			public
44			procedure Initialize; override;
45			protected { Protected declarations }
46			{ IStExpr methods }
47			function AnalyzeExpr(const Expr: WideString): Double; safecall;
48			function License(const Key: WideString): WordBool; safecall;
49			{ Protected declarations }
50			end;
51
52			implementation
53
54			{$DEFINE UseMathUnit}
55			uses ComServ, StExpr {$IFDEF LICENSE}, StComLic {$ENDIF};
56
57			procedure TStExpr.Initialize;
58			begin
59			inherited Initialize;
60			{$IFDEF LICENSE}
61			FIsLicensed := False;
62			{$ELSE}
63			FIsLicensed := True;
64			{$ENDIF}
65			end;
66
67			{ ******** TStExpr Methods *********************************************************** }
68			function TStExpr.AnalyzeExpr(const Expr: WideString): Double;
69			begin
70			{$IFDEF LICENSE}
71			if (not FIsLicensed) or (not COMHasBeenLicensed) then
72			OleError(CLASS_E_NOTLICENSED);
73			{$ENDIF}
74			Result := StExpr.AnalyzeExpr(Expr);
75			end;
76
77			function TStExpr.License(const Key: WideString): WordBool;
78			begin
79			{$IFDEF LICENSE}
80			Result := COMIsValidKey(Key);
81			{$ELSE}
82			Result := True;
83			{$ENDIF}
84			FIsLicensed := Result;
85			end;
86
87			initialization
88			TAutoObjectFactory.Create(ComServer, TStExpr, Class_StExpr, ciMultiInstance, tmBoth);
89			end.
90