(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)

SDL_RectEmpty

Determine whether a rectangle has no area.

Header File

Defined in <SDL3/SDL_rect.h>

Syntax

SDL_FORCE_INLINE SDL_bool SDL_RectEmpty(const SDL_Rect *r);

Function Parameters

Return Value

Returns SDL_TRUE if the rectangle is "empty", SDL_FALSE otherwise.

Remarks

A rectangle is considered "empty" for this function if r is NULL, or if r's width and/or height are <= 0.

Note that this is a forced-inline function in a header, and not a public API function available in the SDL library (which is to say, the code is embedded in the calling program and the linker and dynamic loader will not be able to find this function inside SDL itself).

Thread Safety

It is safe to call this function from any thread.

Version

This function is available since SDL 3.0.0.

CategoryAPI, CategoryAPIFunction, CategoryRect