Provided by: libsdl3-doc_3.2.10+ds-1_all 

NAME
SDL_SetWindowFocusable - Set whether the window may have input focus.
HEADER FILE
Defined in SDL3/SDL_video.h
SYNOPSIS
#include "SDL3/SDL.h" bool SDL_SetWindowFocusable(SDL_Window *window, bool focusable);
FUNCTION PARAMETERS
window the window to set focusable state. focusable true to allow input focus, false to not allow input focus.
RETURN VALUE
Returns true on success or false on failure; call SDL_GetError () for more information.
THREAD SAFETY
This function should only be called on the main thread.
AVAILABILITY
This function is available since SDL 3.2.0. Simple Directmedia Layer SDL 3.2.10 SDL_SetWindowFocusable(3)