DOKK / manpages / debian 13 / libsdl3-doc / SDL_GetWindowSize.3.en
SDL_GetWindowSize(3) SDL3 FUNCTIONS SDL_GetWindowSize(3)

SDL_GetWindowSize - Get the size of a window's client area.

Defined in SDL3/SDL_video.h

#include "SDL3/SDL.h"
bool SDL_GetWindowSize(SDL_Window *window, int *w, int *h);

The window pixel size may differ from its window coordinate size if the window is on a high pixel density display. Use

SDL_GetWindowSizeInPixels () or

SDL_GetRenderOutputSize () to get the real client area size in pixels.

the window to query the width and height from.
a pointer filled in with the width of the window, may be NULL.
a pointer filled in with the height of the window, may be NULL.

Returns true on success or false on failure; call

SDL_GetError () for more information.

This function should only be called on the main thread.

This function is available since SDL 3.2.0.

(3), SDL_GetRenderOutputSize(3), (3), SDL_GetWindowSizeInPixels(3), (3), SDL_SetWindowSize(3)

SDL 3.2.10 Simple Directmedia Layer