Provided by: libsdl3-doc_3.2.20+ds-2_all 

NAME
SDL_WindowHasSurface - Return whether the window has a surface associated with it.
SYNOPSIS
#include <SDL3/SDL_video.h>
bool SDL_WindowHasSurface(SDL_Window *window);
FUNCTION PARAMETERS
window the window to query.
RETURN VALUE
Returns true if there is a surface associated with the window, or false otherwise.
THREAD SAFETY
This function should only be called on the main thread.
AVAILABILITY
This function is available since SDL 3.2.0.
SEE ALSO
SDL_GetWindowSurface(3)
Simple Directmedia Layer SDL 3.2.20 SDL_WindowHasSurface(3)