I'm trying to use:

procedure TFrmAbout.LMEraseBkgnd(var message: TLMEraseBkgnd);
begin
  Message.Result := 0;
end;

to prevent the window from automatically blanking the background (for forms I'm drawing myself) and it doesn't seem to work. You still get the cool gray flicker of the form.

Thanks,
Tony

This is probably GTK.

GTK Paint Background -> LCL paints background -> you paint background.

We can stop LCL, like you are trying to, at least, I think it should work. I will have to double check. But I do not know of a way of stopping the GTK paint background. If double buffering were enabled you probably wouldn't even notice it but since it isn't...

Andrew

Andrew Johnson wrote

This is probably GTK.

Then I assume I can also rule out using InvalidateRect and drawing just the portion I need in the LM_PAINT message?

-Tony

you can try it, but it _probably_ won't work.

Andrew