Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_UpdateRects.3 @ 1999:dd4b184b3050
Let OS/2 DART backend use SDL converters at a higher level (would fail if
DART didn't directly support AudioSpec before).
author | Ryan C. Gordon <icculus@icculus.org> |
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date | Thu, 31 Aug 2006 22:40:53 +0000 |
parents | e5bc29de3f0a |
children | 546f7c1eb755 |
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1 .TH "SDL_UpdateRects" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
0 | 2 .SH "NAME" |
3 SDL_UpdateRects\- Makes sure the given list of rectangles is updated on the given screen\&. | |
4 .SH "SYNOPSIS" | |
5 .PP | |
6 \fB#include "SDL\&.h" | |
7 .sp | |
8 \fBvoid \fBSDL_UpdateRects\fP\fR(\fBSDL_Surface *screen, int numrects, SDL_Rect *rects\fR); | |
9 .SH "DESCRIPTION" | |
10 .PP | |
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11 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)\&. |
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12 .PP |
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13 This function should not be called while \fBscreen\fR is \fIlocked\fR\&. |
0 | 14 .PP |
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15 .RS |
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16 \fBNote: |
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17 .PP |
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18 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\&. |
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19 .PP |
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20 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\&. |
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21 .RE |
0 | 22 .SH "SEE ALSO" |
23 .PP | |
24 \fI\fBSDL_UpdateRect\fP\fR, \fI\fBSDL_Rect\fR\fR, \fI\fBSDL_Surface\fR\fR, \fI\fBSDL_LockSurface\fP\fR | |
181
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parents:
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25 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |