Keyboard focus was being passed to the child window being shown if SDL_HINT_WINDOW_ACTIVATE_WHEN_SHOWN is false and keyboard focus was not being passed to the child window being activated in WIN_RaiseWindow.
Simple DirectMedia Layer is a cross-platform development library designed
to provide low level access to audio, keyboard, mouse, joystick, and graphics
hardware via OpenGL and Direct3D. It is used by video playback software,
emulators, and popular games including Valve's award winning catalog
and many Humble Bundle games.
More extensive documentation is available in the docs directory, starting
with README.md