setelah googling saya menemukan cara bagaimana mendapatkan response dari sintak DOS sehingga dapat memudahkan dalam pengoperasian aplikasi consol seperti GDAL di atas.
berikut adalah script yang diperlukan:
function GetDosOutput(CommandLine: string; Work: string = 'C:\'): string; var SA: TSecurityAttributes; SI: TStartupInfo; PI: TProcessInformation; StdOutPipeRead, StdOutPipeWrite: THandle; WasOK: Boolean; Buffer: array[0..255] of AnsiChar; BytesRead: Cardinal; WorkDir: string; Handle: Boolean; begin Result := ''; with SA do begin nLength := SizeOf(SA); bInheritHandle := True; lpSecurityDescriptor := nil; end; CreatePipe(StdOutPipeRead, StdOutPipeWrite, @SA, 0); try with SI do begin FillChar(SI, SizeOf(SI), 0); cb := SizeOf(SI); dwFlags := STARTF_USESHOWWINDOW or STARTF_USESTDHANDLES; wShowWindow := SW_HIDE; hStdInput := GetStdHandle(STD_INPUT_HANDLE); // don't redirect stdin hStdOutput := StdOutPipeWrite; hStdError := StdOutPipeWrite; end; WorkDir := Work; Handle := CreateProcess(nil, PChar('cmd.exe /C ' + CommandLine), nil, nil, True, 0, nil, PChar(WorkDir), SI, PI); CloseHandle(StdOutPipeWrite); if Handle then try repeat WasOK := ReadFile(StdOutPipeRead, Buffer, 255, BytesRead, nil); if BytesRead > 0 then begin Buffer[BytesRead] := #0; Result := Result + Buffer; end; until not WasOK or (BytesRead = 0); WaitForSingleObject(PI.hProcess, INFINITE); finally CloseHandle(PI.hThread); CloseHandle(PI.hProcess); end; finally CloseHandle(StdOutPipeRead); end; end;
selain script tersebut di atas bisa juga menggunakan Shellapi. seperti sintak berikut :
uses shellapi; . . shellexecute(handle,'open','filename.exe','argument','directory',SW_HIDE)
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