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...run a console application and get its output?
Autor: Superhausi
Homepage: http://www.superhausi.ch
[ Print tip ]  

Tip Rating (25):  
     


{
Diese Funktion führt ein Programm (Konsole oder Batch-File) aus und fügt
die Ausgaben zu Memo1 hinzu
}


{
This function runs a program (console or batch) and adds its output
to Memo1
}

{....}
  
private
    function 
RunCaptured(const _dirName, _exeName, _cmdLine: string): Boolean;
    
{....}

function TForm1.RunCaptured(const _dirName, _exeName, _cmdLine: string): Boolean;
var
  
start: TStartupInfo;
  procInfo: TProcessInformation;
  tmpName: string;
  tmp: Windows.THandle;
  tmpSec: TSecurityAttributes;
  res: TStringList;
  return: Cardinal;
begin
  
Result := False;
  try
    
{ Setze ein Temporäres File }
    { Set a temporary file }
    
tmpName := 'Test.tmp';
    FillChar(tmpSec, SizeOf(tmpSec), #0);
    tmpSec.nLength := SizeOf(tmpSec);
    tmpSec.bInheritHandle := True;
    tmp := Windows.CreateFile(PChar(tmpName),
           Generic_Write, File_Share_Write,
           @tmpSec, Create_Always, File_Attribute_Normal, 0);
    try
      
FillChar(start, SizeOf(start), #0);
      start.cb          := SizeOf(start);
      start.hStdOutput  := tmp;
      start.dwFlags     := StartF_UseStdHandles or StartF_UseShowWindow;
      start.wShowWindow := SW_Minimize;
      { Starte das Programm }
      { Start the program }
      
if CreateProcess(nil, PChar(_exeName + ' ' + _cmdLine), nilnil, True,
                       0, nil, PChar(_dirName), start, procInfo) then
      begin
        
SetPriorityClass(procInfo.hProcess, Idle_Priority_Class);
        WaitForSingleObject(procInfo.hProcess, Infinite);
        GetExitCodeProcess(procInfo.hProcess, return);
        Result := (return = 0);
        CloseHandle(procInfo.hThread);
        CloseHandle(procInfo.hProcess);
        Windows.CloseHandle(tmp);
        { Die Ausgaben hinzufügen }
        { Add the output }
        
res := TStringList.Create;
        try
          
res.LoadFromFile(tmpName);
          Memo1.Lines.AddStrings(res);
        finally
          
res.Free;
        end;
        Windows.DeleteFile(PChar(tmpName));
      end
      else
      begin
        
Application.MessageBox(PChar(SysErrorMessage(GetLastError())),
          'RunCaptured Error', MB_OK);
      end;
    except
      
Windows.CloseHandle(tmp);
      Windows.DeleteFile(PChar(tmpName));
      raise;
    end;
  finally
  end
;
end;


// Beispiel:
// Example:

procedure TForm1.Button1Click(Sender: TObject);
begin
  
RunCaptured('C:\', 'cmd.exe', '/c dir');
end;

 

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