(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_GetWindowSize

Get the size of a window's client area.

Header File

Syntax

bool SDL_GetWindowSize(SDL_Window *window, int *w, int *h);

Function Parameters

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

Return Value

(bool) Returns true on success or false on failure; call SDL_GetError() for more information.

Remarks

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.

Thread Safety

This function should only be called on the main thread.

Version

This function is available since SDL 3.1.3.