1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
unit Win32CairoCanvas;
{$mode objfpc}{$H+}
interface
uses
LCLType, Cairo, CairoWin32, CairoGraphics;
type
{ TWin32CairoCanvas }
TWin32CairoCanvas = class(TCairoControlCanvas)
protected
function CreateCairoHandle: HDC; override;
procedure SetHandle(NewHandle: HDC); override;
end;
implementation
uses
SysUtils;
{ TWin32CairoCanvas }
function TWin32CairoCanvas.CreateCairoHandle: HDC;
begin
Result := 0; //Fake handle, right Handle is setted in SetHandle func
end;
procedure TWin32CairoCanvas.SetHandle(NewHandle: HDC);
begin
if NewHandle <> 0 then begin
sf := cairo_win32_surface_create(NewHandle);
NewHandle := {%H-}HDC(cairo_create(sf));
end;
inherited SetHandle(NewHandle);
end;
initialization
CairoGraphicControlCanvasClass := TWin32CairoCanvas;
end.
|
