SDL_UpdateRects.3
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- .TH "SDL_UpdateRects" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference"
- .SH "NAME"
- SDL_UpdateRects- Makes sure the given list of rectangles is updated on the given screen&.
- .SH "SYNOPSIS"
- .PP
- fB#include "SDL&.h"
- .sp
- fBvoid fBSDL_UpdateRectsfPfR(fBSDL_Surface *screen, int numrects, SDL_Rect *rectsfR);
- .SH "DESCRIPTION"
- .PP
- Makes sure the given list of rectangles is updated on the given screen&. The rectangles must all be confined within the screen boundaries (no clipping is done)&.
- .PP
- This function should not be called while fBscreenfR is fIlockedfR&.
- .PP
- .RS
- fBNote:
- .PP
- It is adviced to call this function only once per frame, since each call has some processing overhead&. This is no restriction since you can pass any number of rectangles each time&.
- .PP
- The rectangles are not automatically merged or checked for overlap&. In general, the programmer can use his knowledge about his particular rectangles to merge them in an efficient way, to avoid overdraw&.
- .RE
- .SH "SEE ALSO"
- .PP
- fIfBSDL_UpdateRectfPfR, fIfBSDL_RectfRfR, fIfBSDL_SurfacefRfR, fIfBSDL_LockSurfacefPfR
- ..." created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01