Question

我有bat文件，可以进行一些操作。如何从Delphi运行此文件并等待，直到它停止。这样的事情：

procedure TForm1.Button1Click(Sender: TObject);
begin
//Starting bat-file
bla-bla-bla
showmessage('Done');
end;

Answer 1

执行给定的命令行并等待命令行启动的程序退出。如果程序返回零退出代码，则返回true;如果程序未启动或返回非零错误代码，则返回false。

function ExecAndWait(const CommandLine: string) : Boolean;
var
  StartupInfo: Windows.TStartupInfo;        // start-up info passed to process
  ProcessInfo: Windows.TProcessInformation; // info about the process
  ProcessExitCode: Windows.DWord;           // process's exit code
begin
  // Set default error result
  Result := False;
  // Initialise startup info structure to 0, and record length
  FillChar(StartupInfo, SizeOf(StartupInfo), 0);
  StartupInfo.cb := SizeOf(StartupInfo);
  // Execute application commandline
  if Windows.CreateProcess(nil, PChar(CommandLine),
    nil, nil, False, 0, nil, nil,
    StartupInfo, ProcessInfo) then
  begin
    try
      // Now wait for application to complete
      if Windows.WaitForSingleObject(ProcessInfo.hProcess, INFINITE)
        = WAIT_OBJECT_0 then
        // It's completed - get its exit code
        if Windows.GetExitCodeProcess(ProcessInfo.hProcess,
          ProcessExitCode) then
          // Check exit code is zero => successful completion
          if ProcessExitCode = 0 then
            Result := True;
    finally
      // Tidy up
      Windows.CloseHandle(ProcessInfo.hProcess);
      Windows.CloseHandle(ProcessInfo.hThread);
    end;
  end;
end;

来自：http://www.delphidabbler.com/codesnip?action=named&showsrc=1&routines=ExecAndWait

Answer 2

以下是一些代码和示例 - 在Windows 7下正常工作并且不可见

（借用了ExeAndWait函数）。

function ExeAndWait(ExeNameAndParams: string; ncmdShow: Integer = SW_SHOWNORMAL): Integer;
var
    StartupInfo: TStartupInfo;
    ProcessInformation: TProcessInformation;
    Res: Bool;
    lpExitCode: DWORD;
begin
    with StartupInfo do //you can play with this structure
    begin
        cb := SizeOf(TStartupInfo);
        lpReserved := nil;
        lpDesktop := nil;
        lpTitle := nil;
        dwFlags := STARTF_USESHOWWINDOW;
        wShowWindow := ncmdShow;
        cbReserved2 := 0;
        lpReserved2 := nil;
    end;
    Res := CreateProcess(nil, PChar(ExeNameAndParams), nil, nil, True,
        CREATE_DEFAULT_ERROR_MODE
        or NORMAL_PRIORITY_CLASS, nil, nil, StartupInfo, ProcessInformation);
    while True do
    begin
        GetExitCodeProcess(ProcessInformation.hProcess, lpExitCode);
        if lpExitCode <> STILL_ACTIVE then
            Break;
        Application.ProcessMessages;
    end;
    Result := Integer(lpExitCode);
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
    ExeAndWait(ExtractFilePath(Application.ExeName) + 'test.bat', SW_HIDE);
    ShowMessage('Done!');
end;

PS。如果您愿意，可以使用TStringList类在运行时构建批处理文件。

Delphi：等到bat-script运行到最后

2 个答案: