Man page - sdl_getwindowsize(3)

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Package: libsdl3-doc
apt-get install libsdl3-doc

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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.

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