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Move form by client area
If you want, that user can move your form by client area, then use WM_NCHITTEST handler to achieve this cool effect:
In the Forms private declarations add this
procedure WMNCHitTest(var Msg: TWMNCHitTest);
message WM_NCHITTEST;
Create handler for this message with this code:
procedure TForm1.WMNCHitTest(var Msg: TWMNCHitTest);
begin
DefaultHandler(Msg);
if Msg.Result=HTCLIENT then
Msg.Result:=HTCAPTION;
end;
- Related chapters
-
Graphics
- Related topics
-
Draw transparent text on canvas
- For more
-
Win32 programmer's reference
- Download source
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