Programalama > DELPHI

procedure TfrMain.LoadPictureClick(Sender: TObject);
begin
if ActiveMDIChild <> nil then
  TfrChild(ActiveMDIChild).LoadPicture;
end;

uses ExtDlgs;
...
procedure TfrChild.LoadPicture;
var OpenPicDlg : TOpenPictureDialog;
begin
 OpenPicDlg := TOpenPictureDialog.Create(Self);
 if OpenPicDlg.Execute then
 begin
  Image1.Picture.LoadFromFile(OpenPicDlg.FileName);
 end;
 OpenPicDlg.Free;
end;

...
type
  TfrChild = class(TForm)
	...
  private
  public
    procedure LoadPicture;
  end;
...

frMain.WindowMenu := ChildList;

procedure TfrMain.MinimizeAl1Click(Sender: TObject);
var i: integer;
begin
for i:= MdiChildCount - 1 downto 0 do
  MDIChildren[i].WindowState := wsMinimized;
end;