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


Copy areas of the window surface to the screen.


int SDL_UpdateWindowSurfaceRects(SDL_Window *window, const SDL_Rect *rects, int numrects);

Function Parameters

window the window to update
rects an array of SDL_Rect structures representing areas of the surface to copy, in pixels
numrects the number of rectangles

Return Value

Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.


This is the function you use to reflect changes to portions of the surface on the screen.

This function is equivalent to the SDL 1.2 API SDL_UpdateRects().


This function is available since SDL 3.0.0.

CategoryAPI, CategoryVideo

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