= SDL_RectEmpty = Use this function to check whether a rectangle has no area. == Syntax == SDL_bool SDL_RectEmpty(const SDL_Rect* r) == Function Parameters == {| |'''r''' |the [[SDL_Rect]] structure representing the rectangle to check |} == Return Value == Returns SDL_TRUE if the rectangle has no area or SDL_FALSE if it does; see [[#Remarks|Remarks]] for details. == Remarks == If the rectangle defined by '''r''' is NULL or has a width or height <= 0 it has no area and this function returns SDL_TRUE. If both width and height are > 0 the rectangle has area and this function returns SDL_FALSE. ---- [[CategoryAPI]], [[CategoryRect]]