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

SDL_UpdateWindowSurface

Copy the window surface to the screen.

Header File

Defined in SDL_video.h, but apps should only #include "SDL.h"!

Syntax

int SDL_UpdateWindowSurface(SDL_Window * window);

Function Parameters

window

the window to update

Return Value

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

Remarks

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

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

Version

This function is available since SDL 2.0.0.

See Also

• SDL_GetWindowSurface
• SDL_UpdateWindowSurfaceRects

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CategoryAPI, CategoryAPIFunction

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