Add additional information to exceptions.

-gnateE improves (makes them more detailed) error messages upon
unhandled exceptions.

Signed-off-by: darkestkhan <darkestkhan@gmail.com>
Window: Add support for querying pointer.

Also fix small error in warp pointer (origin was at (1, 1) instead of (0, 0)).

Signed-off-by: darkestkhan <darkestkhan@gmail.com>