Вывод картинок в TComboBox

Оформил: DeeCo
Автор: http://www.swissdelphicenter.ch

// This code works also with a TListBox 


var
   Bitmap1, Bitmap2, Bitmap3, Bitmap4: TBitmap;

 procedure TForm1.FormCreate(Sender: TObject);
 begin
   ComboBox1.Style := csOwnerDrawVariable;

   //Set height of one item 
  ComboBox1.ItemHeight := 20;

   //load all bitmaps 

  Bitmap1 := TBitmap.Create;
   Bitmap1.LoadFromFile("chem16.bmp");

   Bitmap2 := TBitmap.Create;
   Bitmap2.LoadFromFile("chip16.bmp");

   Bitmap3 := TBitmap.Create;
   Bitmap3.LoadFromFile("factry16.bmp");

   Bitmap4 := TBitmap.Create;
   Bitmap4.LoadFromFile("skylin16.bmp");

   //assign bitmaps with item objects - caption of the items: Bitmap 1 - Bitmap 4 

  ComboBox1.Items.AddObject("Bitmap 1", Bitmap1);
   ComboBox1.Items.AddObject("Bitmap 2", Bitmap2);
   ComboBox1.Items.AddObject("Bitmap 3", Bitmap3);
   ComboBox1.Items.AddObject("Bitmap 4", Bitmap4);
 end;

 procedure TForm1.ComboBox1DrawItem(Control: TWinControl; Index: Integer;
   Rect: TRect; State: TOwnerDrawState);
 var
   Bitmap: TBitmap;
   Offset: Integer;
 begin
   offset := 0;
   with ComboBox1.Canvas do
   begin
     FillRect(Rect);
     Bitmap := TBitmap(ComboBox1.Items.Objects[Index]);
     if Bitmap <> nil then
     begin
       //copy bitmap to combobox coordinate 
      BrushCopy(Bounds(Rect.Left + 2, Rect.Top + 2, Bitmap.Width,
         Bitmap.Height), Bitmap, Bounds(0, 0, Bitmap.Width,
         Bitmap.Height), clred);
       Offset := Bitmap.Width + 8;
     end;
     //Set a caption to each item 
    TextOut(Rect.Left + Offset, Rect.Top, Combobox1.Items[Index]);
   end;
 end;

 procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
 begin
   //free all bitmap objects 
  bitmap1.Free;
   bitmap2.Free;
   bitmap3.Free;
   bitmap4.Free;
 end;

Обсудить статью на форуме