unit DN_Win;

interface

uses
  SysUtils, WinTypes, WinProcs, Messages, Classes, Graphics, Controls,
  Forms, Dialogs, Menus, StdCtrls,

type
  TDNForm = class(TForm)
    MainMenu1: TMainMenu;
    cm_MainExit: TMenuItem;
    procedure FormCreate(Sender: TObject);
    procedure cm_MainExitClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
    BM: TBitmap;
    procedure WMDrawItem(var Msg:TWMDrawItem); message wm_DrawItem;
    procedure WMMeasureItem(var Msg:TWMMeasureItem); message wm_MeasureItem;
end;

var
  DNForm: TDNForm;

implementation

{$R *.DFM}

var
  Comm, yMenu: word;

procedure TDNForm.FormCreate(Sender: TObject);
begin
  yMenu:=GetSystemMetrics(SM_CYMENU);
  comm:=cm_MainExit.Command;
  ModifyMenu(MainMenu1.Handle,0,mf_ByPosition or mf_OwnerDraw,comm,'Go');
end;

procedure TDNForm.cm_MainExitClick(Sender: TObject);
begin
  DNForm.Close;
end;

procedure TDNForm.WMMeasureItem(var Msg:TWMMeasureItem);
begin
  with Msg.MeasureItemStruct^ do
    if ItemID=comm then
    begin
      ItemWidth:=yMenu;
      Itemheight:=yMenu;
    end;
end;

procedure TDNForm.WMDrawItem(var Msg: TWMDrawItem);
var
  MemDC:hDC;
  BM:hBitMap;
  mtd:longint;
begin
  with Msg.DrawItemStruct^ do
  begin
    if ItemID=comm then
    begin
      BM:=LoadBitMap(hInstance,'dver');
      MemDC:=CreateCompatibleDC(hDC);
      SelectObject(MemDC,BM);
      if ItemState=ods_Selected then
        mtd:=NotSrcCopy
      else
        mtd:=SrcCopy;

      StretchBlt(hDC,rcItem.left, rcItem.top, yMenu, yMenu, MemDC,
      0, 0, 24, 23, mtd);
      DeleteDC(MemDC);
      DeleteObject(BM);
    end;
  end;
end;

end.