Hi!
It's been a long wait
but
I believe that I found the solution to my webcam camera being touched by the mouse pointer
outside the fullwindow when I'm not using a pointer.(and I started in fullscreen mode )
Thanks to Widi's comment
#include <windows.h>
and in a while(1) Loop:
SetCursorPos (screen_size.x / 2,screen_size.y / 2);
That set the Windows System Mouse at the middle of the Screen (behind the Game - Window)
This solution is only fonctional in a game if
mouse_mode = 0
and
mouse_pointer = 0
The problem is still there for those who are using a mouse pointer in their game.
Comments are welcomed

Ottawa