Author: Jonas Bilinkevicius

How to fake the caption bar of a borderless form

Answer:

1   procedure TForm1.FormPaint(Sender: TObject);
2   var
3     r: TRect;
4   begin
5     r := Clientrect;
6     DrawEdge(canvas.handle, r, EDGE_RAISED, BF_RECT or BF_ADJUST);
7     r.bottom := r.top + GetSystemMetrics(SM_CYCAPTION);
8     DrawCaption(self.handle, canvas.handle, r, DC_ACTIVE or DC_ICON or DC_TEXT);
9     InflateRect(r, -2, -2);
10    r.Left := r.right - GetSystemMetrics(SM_CXSIZE) + 2;
11    DrawFrameControl(canvas.handle, r, DFC_CAPTION, DFCS_CAPTIONCLOSE);
12    r.right := r.left - 2;
13    r.Left := r.right - GetSystemMetrics(SM_CXSIZE) + 2;
14    DrawFrameControl(canvas.handle, r, DFC_CAPTION, DFCS_CAPTIONMAX);
15    r.right := r.left;
16    r.Left := r.right - GetSystemMetrics(SM_CXSIZE) + 2;
17    DrawFrameControl(canvas.handle, r, DFC_CAPTION, DFCS_CAPTIONMIN);
18  end;