Wraps SDL_SetWindowMouseRect (from SDL 2.0.18) which sets the window's mouse confinement rectangle
dsdl2.Rect specifying the rectangle in window coordinate space to confine the mouse pointer in
dsdl2.SDLException if failed to set the confinement
See Implementation
Wraps SDL_SetWindowMouseRect (from SDL 2.0.18) which sets the window's mouse confinement rectangle