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[schwa226]

Super Danke für deine Hilfe!

Dadurch habe ich auch noch das gefunden:

Delphi-Quellcode:

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

{ This code uses the undocumented RunFileDlg function to show the "run" dialog }
{ Dieser Code verwendet die undokumentierte RunFileDlg Funktion, um den Ausführen Dialog anzuzeigen }
// For Win NT
procedure RunFileDlgW(OwnerWnd: HWND; Icon: HICON; lpstrDirectory: PWideChar;
  lpstrTitle: PWideChar; lpstrDescription: PWideChar; Flags: Longint); stdcall;
  external 'Shell32.dll' Index 61;
// For Win 9x (Win NT to show standard captions )
procedure RunFileDlg(OwnerWnd: HWND; Icon: HICON; lpstrDirectory: PChar;
  lpstrTitle: PChar; lpstrDescription: PChar; Flags: Longint); stdcall;
  external 'Shell32.dll' Index 61;

const
  RFF_NOBROWSE = 1; //Removes the browse button.
  RFF_NODEFAULT = 2; // No default item selected.
  RFF_CALCDIRECTORY = 4; // Calculates the working directory from the file name.
  RFF_NOLABEL = 8; // Removes the edit box label.
  RFF_NOSEPARATEMEM = 14; // Removes the Separate Memory Space check box (Windows NT only)

function ShowRunFileDialg(OwnerWnd: HWND; InitialDir, Title, Description: PChar;
  flags: Integer; StandardCaptions: Boolean): Boolean;
var
  HideBrowseButton: Boolean;
  TitleWideChar, InitialDirWideChar, DescriptionWideChar: PWideChar;
  Size: Integer;
begin
  if (Win32Platform = VER_PLATFORM_WIN32_NT) and not StandardCaptions then
  begin
    Size := SizeOf(WideChar) * MAX_PATH;
    InitialDirWideChar := nil;
    TitleWideChar := nil;
    DescriptionWideChar := nil;
    GetMem(InitialDirWideChar, Size);
    GetMem(TitleWideChar, Size);
    GetMem(DescriptionWideChar, Size);
    StringToWideChar(InitialDir, InitialDirWideChar, MAX_PATH);
    StringToWideChar(Title, TitleWideChar, MAX_PATH);
    StringToWideChar(Description, DescriptionWideChar, MAX_PATH);
    try
      RunFileDlgW(OwnerWnd, 0, InitialDirWideChar, TitleWideChar, DescriptionWideChar, Flags);
    finally
      FreeMem(InitialDirWideChar);
      FreeMem(TitleWideChar);
      FreeMem(DescriptionWideChar);
    end;
  end else
    RunFileDlg(OwnerWnd, 0, PChar(InitialDir), PChar(Title), PChar(Description), Flags);
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
 ShowRunFileDialg(Self.Handle, nil, nil, nil, 0, True);
end;

end.

Geht einwandfrei, auch bei nicht gestarteten explorer.exe!

Jetzt brauch ich noch den Index für MinimizeAll...