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99e966daa0
- fix problem with path with spaces in the Launcher (thanks to Martin Rauscher for testing) - add icons and version info to the launcher and the PDF viewer git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@18434 a592a061-630c-0410-9148-cb99ea01b6c8
104 lines
3.0 KiB
ObjectPascal
104 lines
3.0 KiB
ObjectPascal
program PDFViewWin;
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// this program opens and closes PDF-files with Acrobat or Adobe Reader
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// author: Uwe Stöhr
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{The problematic is the following:
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A PDF-file should be modified while it is opened with Acrobat.
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This is not possible because Acrobat understands itself as editor, not as
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reader and therefore opens PDFs always with write access, so that other
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programs cannot modifiy them.
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The idea to solve the problem is the following:
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The file that should be shown in Acrobat is copied and then renamed -
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the suffix "-preview" is attached. The renamed copy is opened by Acrobat
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while the unrenamed version can be modified. When the modified version should
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be displayed, the eventually opened renamed version is closed in Acrobat and
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the modified version is copied, renamed and opened in Acrobat.}
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{$APPTYPE CONSOLE}
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uses
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Windows, SysUtils, ShellApi;
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{$R *.res}
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var Input,InputNew : string;
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FileTest : boolean;
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hConsole : THandle;
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function ExecWait(const CommandLine: string;
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const Visible: boolean = false;
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const MaxSeconds: integer = 60): boolean;
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//Executes programs and waits until they are terminated
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var
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SI: TStartupInfo;
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PI: TProcessInformation;
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ExitCode: DWORD;
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begin
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result := false;
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GetStartupInfo(SI);
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if not Visible then
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begin
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SI.dwFlags := STARTF_USESHOWWINDOW;
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SI.wShowWindow := SW_HIDE;
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end;
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if (CreateProcess(nil, pchar(CommandLine), nil, nil, False, 0, nil, nil, SI, PI)) then
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begin
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case WaitForSingleObject(PI.hProcess, MaxSeconds * 1000) of
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WAIT_OBJECT_0: GetExitCodeProcess(PI.hProcess, ExitCode);
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WAIT_ABANDONED: TerminateProcess(PI.hProcess, ExitCode);
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WAIT_TIMEOUT: TerminateProcess(PI.hProcess, ExitCode);
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end;
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result := ExitCode = 0;
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CloseHandle(PI.hProcess);
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CloseHandle(PI.hThread);
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end;
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end; // end function
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function RenameFile(const OldName,NewName: string; hConsole: THandle): boolean;
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//renames files, taken from
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//http://www.dsdt.info/tipps/?id=128&search=RenameFile
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var
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sh: TSHFileOpStruct;
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begin
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sh.Wnd:= hConsole;
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sh.wFunc:= fo_Rename;
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//terminate with null byte to set list ending
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sh.pFrom:= PChar(OldName + #0);
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sh.pTo:= PChar(NewName + #0);
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sh.fFlags:= fof_Silent or fof_MultiDestFiles;
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Result:= ShFileOperation(sh)=0;
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end; //end function
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begin //begin program
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//Read path to this application
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Input:= ParamStr(0);
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//get handle of this console window
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hConsole := FindWindow(nil,Pchar(Input));
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// hide the window of this console application
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ShowWindow(hConsole,SW_HIDE);
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//Read given filename
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Input:= ParamStr(1);
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//InputNew = original filename with ending "-preview" (e.g. test-preview.pdf)
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InputNew:= copy(Input,1,Length(Input)-4); //remove ".pdf"
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InputNew:= InputNew+'-preview.pdf';
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//check if renamed file exists
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FileTest:= FileExists(InputNew);
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if FileTest = true then
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begin
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//close old file
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ExecWait('pdfclose --file "'+InputNew+'"');
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//delete old file
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DeleteFile(InputNew);
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end;
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//rename file
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RenameFile(Input,InputNew,hConsole);
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ExecWait('pdfopen --file "'+InputNew+'" --back');
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end. //end program
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