Change SDL to not use DefWindowProc as the window class' window procedure. For some reason, having lpfnWndProc=DefWindowProc during window class registration causes IME input to not work in windows. With this small change, IME input should now work in SDL windows but not in fullscreen mode.

/**
 * Part of SDL test suite.
 *
 * Written by Edgar Simo "bobbens"
 *
 * Released under Public Domain.
 */


#ifndef _TEST_RECT
#  define _TEST_RECT


int test_rect (void);


#endif /* _TEST_RECT */