Request that a window be raised above other windows and gain the input
focus.
The result of this request is subject to desktop window manager policy,
particularly if raising the requested window would result in stealing focus
from another application. If the window is successfully raised and gains
input focus, an SDL_EVENT_WINDOW_FOCUS_GAINED event will be emitted, and
the window will have the SDL_WINDOW_INPUT_FOCUS flag set.
Request that a window be raised above other windows and gain the input focus.
The result of this request is subject to desktop window manager policy, particularly if raising the requested window would result in stealing focus from another application. If the window is successfully raised and gains input focus, an SDL_EVENT_WINDOW_FOCUS_GAINED event will be emitted, and the window will have the SDL_WINDOW_INPUT_FOCUS flag set.