(This is the legacy documentation for SDL2, the previous stable version; SDL3 is the current stable version.)

SDL_GetWindowSize

Get the size of a window's client area.

Header File

Defined in SDL_video.h

Syntax

void 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, in screen coordinates, may be NULL.
int *	h	a pointer filled in with the height of the window, in screen coordinates, may be NULL.

Remarks

NULL can safely be passed as the w or h parameter if the width or height value is not desired.

The window size in screen coordinates may differ from the size in pixels, if the window was created with SDL_WINDOW_ALLOW_HIGHDPI on a platform with high-dpi support (e.g. iOS or macOS). Use SDL_GL_GetDrawableSize(), SDL_Vulkan_GetDrawableSize(), or SDL_GetRendererOutputSize() to get the real client area size in pixels.

Version

This function is available since SDL 2.0.0.

See Also

• SDL_GL_GetDrawableSize
• SDL_Vulkan_GetDrawableSize
• SDL_SetWindowSize

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CategoryAPI, CategoryAPIFunction, CategoryVideo

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