Provided by: libsdl3-doc_3.2.8+ds-1_all 

NAME
SDL_GetWindowSizeInPixels - Get the size of a window's client area, in pixels.
HEADER FILE
Defined in SDL3/SDL_video.h
SYNOPSIS
#include "SDL3/SDL.h" bool SDL_GetWindowSizeInPixels(SDL_Window *window, int *w, int *h);
FUNCTION PARAMETERS
window the window from which the drawable size should be queried. w a pointer to variable for storing the width in pixels, may be NULL. h a pointer to variable for storing the height in pixels, may be NULL.
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.
SEE ALSO
•(3), SDL_CreateWindow(3), •(3), SDL_GetWindowSize(3) Simple Directmedia Layer SDL 3.2.8 SDL_GetWindowSizeInPixels(3)