Aus Unit2 ereignis in Unit1 aktivieren

[WIng2005]

Hast du die beien Formulare untereinander bekanntgemacht, will heißen die zugehörigen units eingebunden?
Schau dir mal folgendes an:

Delphi-Quellcode:

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Edit1: TEdit;
    Button2: TButton;
    procedure Button2Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation
uses unit2;
{$R *.dfm}

procedure TForm1.Button2Click(Sender: TObject);
begin
edit1.text:='TEST';
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
application.CreateForm(TForm2,form2);
form2.Show;
end;

end.
////////////////////////////////////////////////////
unit Unit2;

interface

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

type
  TForm2 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form2: TForm2;

implementation
uses unit1;   //////////////<-wichtig
{$R *.dfm}

procedure TForm2.Button1Click(Sender: TObject);
begin
form1.Button2.Click;
end;

end.

//Edit: Ach und: Herzlich Willkommen in der DP