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OpenSolaris 2009.06 - man page for sdl_updaterect (opensolaris section 3)

SDL_UpdateRect(3)						 SDL API Reference						 SDL_UpdateRect(3)

NAME
SDL_UpdateRect - Makes sure the given area is updated on the given screen.
SYNOPSIS
#include "SDL.h" void SDL_UpdateRect(SDL_Surface *screen, Sint32 x, Sint32 y, Sint32 w, Sint32 h);
DESCRIPTION
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.
SEE ALSO
SDL_UpdateRects, SDL_Rect, SDL_Surface, SDL_LockSurface
SDL
Tue 11 Sep 2001, 23:01 SDL_UpdateRect(3)