我的应用程序基于MainForm、DetailForms和DialogForms。在任务栏上，我可以看到MainFormButton和DetailForms。因此，我用途：

procedure <DetailForm>.CreateParams(var Params: TCreateParams);
begin
  inherited CreateParams(Params);
  Params.ExStyle := Params.ExStyle or WS_EX_APPWINDOW;
  Params.WndParent:= GetDesktopWindow;  
end;

我用的是 Delphi 2010，我已经设置了应用程序。String：True;当我在Detailform中使用PromptForFileName或TSaveDialog时，DetailForm将位于主窗体之后。关闭对话框后，DetailForm返回。
当我使用DialogForm（带有PopupMode属性的TForm的Showmodal：pmAuto），那么我的DetailForm就停留在主对话框和对话框之间。我如何像showmodal一样使用PopupMode属性来强制TsaveDialog：pmAuto或者我怎样才能防止我的detailform落后于mainform
演示：

program Project1;

uses
  Forms,
  Unit1 in 'Unit1.pas' {Form1},
  Unit2 in 'Unit2.pas' {Form2};

  {$R *.res}

begin
  Application.Initialize;
  Application.MainFormOnTaskbar := True;
  Application.CreateForm(TForm1, Form1);
  Application.Run;
end.

unit Unit1;

interface

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

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

var
  Form1: TForm1;

implementation

uses Unit2;

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
  oForm: TForm;
begin
  oForm:= Unit2.TForm2.Create(Self);
  oForm.Show;
end;
end.

unit Unit2;

interface

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

type
  TForm2 = class(TForm)

    SaveDialog1: TSaveDialog;
    procedure cxButton1Click(Sender: TObject);
  private
  protected
    procedure CreateParams(var Params: TCreateParams); override;
        { Private declarations }

  public
    { Public declarations }
  end;

var
  Form2: TForm2;

implementation

{$R *.dfm}

{ TForm2 }

procedure TForm2.CreateParams(var Params: TCreateParams);
begin
  inherited CreateParams(Params);
  Params.ExStyle := Params.ExStyle or WS_EX_APPWINDOW;
  Params.WndParent:= 0;   // --> Testing
end;

procedure TForm2.cxButton1Click(Sender: TObject);
begin
  self.SaveDialog1.execute();
end;

end.