Drawing on TPanel using SDL1.2
lazarus / 39-Graphics

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emailadd · 2018-08-28 15:28

I want to draw on TPanel using SDL (v1.2) library. In order to have
SDL to draw on the component, I need to pass the X11 window ID using
'SDL_WINDOWID' environment.

fWindow :=
GDK_WINDOW_XWINDOW(PGtkWidget(PtrUInt(Panel1.Handle))^.window);

Using the function above, I was able to get the X window ID and passed
into SDL. However, it draws not on the TPnale, but on the form.
Any suggestions to fix this?

I am using Lazarus v1.0.10 under Ubuntu 14.04-LTM

Regards,