160 lines
4.1 KiB
ObjectPascal
160 lines
4.1 KiB
ObjectPascal
{-----------------------------------------------------------------------------
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The contents of this file are subject to the Mozilla Public License
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Version 1.1 (the "License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License at
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http://www.mozilla.org/MPL/MPL-1.1.html
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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 expressed or implied. See the License for
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the specific language governing rights and limitations under the License.
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The Original Code is: JvgProcess.PAS, released on 2003-01-15.
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The Initial Developer of the Original Code is Andrey V. Chudin, [chudin att yandex dott ru]
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Portions created by Andrey V. Chudin are Copyright (C) 2003 Andrey V. Chudin.
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All Rights Reserved.
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Contributor(s):
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Michael Beck [mbeck att bigfoot dott com].
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You may retrieve the latest version of this file at the Project JEDI's JVCL home page,
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located at http://jvcl.sourceforge.net
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Known Issues:
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-----------------------------------------------------------------------------}
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// $Id: JvgProcess.pas,v 1.14 2005/09/15 07:22:55 marquardt Exp $
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unit JvgProcess;
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{$I jvcl.inc}
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interface
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//...simple process managment
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uses
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{$IFDEF USEJVCL}
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{$IFDEF UNITVERSIONING}
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JclUnitVersioning,
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{$ENDIF UNITVERSIONING}
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Windows, SysUtils, Messages, Classes, Forms,
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JvComponentBase;
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{$ELSE}
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Windows, SysUtils, Messages, Classes, Forms;
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{$ENDIF USEJVCL}
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type
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{$IFDEF USEJVCL}
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TJvgProcess = class(TJvComponent)
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{$ELSE}
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TJvgProcess = class(TComponent)
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{$ENDIF USEJVCL}
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private
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FInfo: TProcessInformation;
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FRunning: Boolean;
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FFileName: TFileName;
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FOnTerminated: TNotifyEvent;
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public
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destructor Destroy; override;
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function Run: Boolean;
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function Kill: Boolean;
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public
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property Info: TProcessInformation read FInfo;
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property Running: Boolean read FRunning;
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published
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property FileName: TFileName read FFileName write FFileName;
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property OnTerminated: TNotifyEvent read FOnTerminated write FOnTerminated;
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end;
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{$IFDEF USEJVCL}
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{$IFDEF UNITVERSIONING}
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const
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UnitVersioning: TUnitVersionInfo = (
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RCSfile: '$RCSfile: JvgProcess.pas,v $';
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Revision: '$Revision: 1.14 $';
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Date: '$Date: 2005/09/15 07:22:55 $';
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LogPath: 'JVCL\run'
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);
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{$ENDIF UNITVERSIONING}
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{$ENDIF USEJVCL}
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implementation
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type
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TJvgProcessMonitorThread = class(TThread)
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public
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Process: THandle;
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Owner: TJvgProcess;
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procedure Execute; override;
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procedure DoTerminated;
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end;
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var
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ProcessMonitorThread: TJvgProcessMonitorThread;
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procedure TJvgProcessMonitorThread.DoTerminated;
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begin
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Owner.FRunning := False;
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if not (csDestroying in Owner.ComponentState) then
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if Assigned(Owner.FOnTerminated) then
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Owner.FOnTerminated(Owner);
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end;
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procedure TJvgProcessMonitorThread.Execute;
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begin
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while not Terminated do
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if WaitForSingleObject(Process, 100) <> WAIT_TIMEOUT then
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Break;
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Synchronize(DoTerminated);
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end;
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destructor TJvgProcess.Destroy;
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begin
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Kill;
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inherited Destroy;
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end;
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function TJvgProcess.Run: Boolean;
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var
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Si: TStartupInfo;
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begin
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Result := False;
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if Running then
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Exit;
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FillChar(Si, SizeOf(Si), #0);
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Si.cb := SizeOf(Si);
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GetStartupInfo(Si);
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Si.wShowWindow := SW_NORMAL;
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FRunning := CreateProcess(PChar(FFileName), nil, nil, nil, False,
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NORMAL_PRIORITY_CLASS, nil, nil, Si, FInfo);
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Result := FRunning;
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if FRunning then
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begin
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ProcessMonitorThread := TJvgProcessMonitorThread.Create(True);
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ProcessMonitorThread.FreeOnTerminate := True;
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ProcessMonitorThread.Process := Info.hProcess;
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ProcessMonitorThread.Resume;
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end;
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end;
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function TJvgProcess.Kill: Boolean;
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begin
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if FRunning then
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Result := TerminateProcess(Info.hProcess, 0)
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else
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Result := False;
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end;
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{$IFDEF USEJVCL}
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{$IFDEF UNITVERSIONING}
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initialization
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RegisterUnitVersion(HInstance, UnitVersioning);
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finalization
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UnregisterUnitVersion(HInstance);
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{$ENDIF UNITVERSIONING}
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{$ENDIF USEJVCL}
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end.
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