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procedure TForm1.Button1Click(Sender: TObject);
var a: TPoint;
begin
getCursorPos(a);
popupmenu1.Popup(a.x,a.y);
end;                    

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procedure TForm1.Panel1Click(Sender: TObject);
begin
panel2.Visible := not panel2.Visible;
panel3.Visible := not panel3.Visible;
panel4.Visible := not panel4.Visible;
end;                    

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procedure TForm1.Button1Click(Sender: TObject);
var a: TPoint;
begin
getCursorPos(a);
mainmenu ?????????????
end;                    

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unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Panel1: TPanel;
    Panel2: TPanel;
    Panel3: TPanel;
    Panel4: TPanel;
    procedure Panel1Click(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Panel1Click(Sender: TObject);
begin
panel2.Visible := not panel2.Visible;
panel3.Visible := not panel3.Visible;
panel4.Visible := not panel4.Visible;

end;

end.                    

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procedure TForm1.Panel1Click(Sender: TObject);
begin
  Panel2.Visible := not Panel2.Visible;
  Panel3.Visible := not Panel3.Visible;
  Panel4.Visible := not Panel4.Visible;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  Panel1.Visible:=True;
  Panel2.Visible:=False;
  Panel3.Visible:=False;
  Panel4.Visible:=False;
end;