Sortix volatile manual

This manual documents Sortix volatile, a development build that has not been officially released. You can instead view this document in the latest official manual.

SDL_UpdateRect(3)

SDL API Reference

SDL_UpdateRect(3)

NAME

SDL_UpdateRect - Makes sure the given area is updated on the given screen.

#include "SDL.h"

void SDL_UpdateRect(SDL_Surface *screen, Sint32 x, Sint32 y, Sint32 w, Sint32 h);

Makes sure the given area is updated on the given screen. The rectangle must be confined within the screen boundaries (no clipping is done).

If 'x', 'y', 'w' and 'h' are all 0, SDL_UpdateRect will update the entire screen.

This function should not be called while 'screen' is locked.