Set the window to always be above the others.
void SDL_SetWindowAlwaysOnTop(SDL_Window * window, SDL_bool on_top);
|window||The window of which to change the always on top state|
|on_top||SDL_TRUE to set the window always on top, SDL_FALSE to disable|
This will add or remove the window's
SDL_WINDOW_ALWAYS_ON_TOP flag. This will bring the window to the front and keep the window above the rest.
This function is available since SDL 2.0.16.