forked from KolibriOS/kolibrios
247 lines
3.3 KiB
HTML
247 lines
3.3 KiB
HTML
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<HTML
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><HEAD
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><TITLE
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>SDL_UpdateRects</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.64
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"><LINK
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REL="HOME"
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TITLE="SDL Library Documentation"
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HREF="index.html"><LINK
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REL="UP"
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TITLE="Video"
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HREF="video.html"><LINK
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REL="PREVIOUS"
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TITLE="SDL_UpdateRect"
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HREF="sdlupdaterect.html"><LINK
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REL="NEXT"
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TITLE="SDL_Flip"
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HREF="sdlflip.html"></HEAD
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><BODY
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CLASS="REFENTRY"
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BGCOLOR="#FFF8DC"
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TEXT="#000000"
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LINK="#0000ee"
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VLINK="#551a8b"
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ALINK="#ff0000"
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><DIV
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CLASS="NAVHEADER"
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><TABLE
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>SDL Library Documentation</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="sdlupdaterect.html"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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></TD
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="sdlflip.html"
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>Next</A
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></TD
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></TR
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></TABLE
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><H1
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><A
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NAME="SDLUPDATERECTS"
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>SDL_UpdateRects</A
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></H1
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><DIV
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CLASS="REFNAMEDIV"
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><A
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NAME="AEN977"
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></A
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><H2
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>Name</H2
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>SDL_UpdateRects -- Makes sure the given list of rectangles is updated on the given screen.</DIV
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><DIV
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CLASS="REFSYNOPSISDIV"
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><A
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NAME="AEN980"
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></A
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><H2
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>Synopsis</H2
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><DIV
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CLASS="FUNCSYNOPSIS"
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><A
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NAME="AEN981"
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></A
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><P
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></P
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><PRE
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CLASS="FUNCSYNOPSISINFO"
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>#include "SDL.h"</PRE
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><P
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><CODE
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><CODE
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CLASS="FUNCDEF"
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>void <B
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CLASS="FSFUNC"
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>SDL_UpdateRects</B
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></CODE
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>(SDL_Surface *screen, int numrects, SDL_Rect *rects);</CODE
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></P
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><P
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></P
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></DIV
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></DIV
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><DIV
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CLASS="REFSECT1"
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><A
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NAME="AEN987"
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></A
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><H2
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>Description</H2
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><P
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>Makes sure the given list of rectangles is updated on the given screen.
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The rectangles must all be confined within the screen boundaries (no
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clipping is done).</P
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><P
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>This function should not be called while <TT
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CLASS="PARAMETER"
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><I
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>screen</I
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></TT
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> is
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<A
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HREF="sdllocksurface.html"
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>locked</A
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>.</P
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><DIV
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CLASS="NOTE"
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><BLOCKQUOTE
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CLASS="NOTE"
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><P
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><B
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>Note: </B
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>It is adviced to call this function only once per frame, since each
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call has some processing overhead. This is no restriction since you
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can pass any number of rectangles each time.</P
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><P
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>The rectangles are not automatically merged or checked for overlap. In
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general, the programmer can use his knowledge about his particular
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rectangles to merge them in an efficient way, to avoid overdraw.</P
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></BLOCKQUOTE
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></DIV
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></DIV
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><DIV
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CLASS="REFSECT1"
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><A
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NAME="AEN996"
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></A
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><H2
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>See Also</H2
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><P
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><A
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HREF="sdlupdaterect.html"
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><TT
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CLASS="FUNCTION"
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>SDL_UpdateRect</TT
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></A
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>,
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<A
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HREF="sdlrect.html"
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><SPAN
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CLASS="STRUCTNAME"
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>SDL_Rect</SPAN
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></A
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>,
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<A
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HREF="sdlsurface.html"
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><SPAN
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CLASS="STRUCTNAME"
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>SDL_Surface</SPAN
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></A
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>,
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<A
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HREF="sdllocksurface.html"
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><TT
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CLASS="FUNCTION"
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>SDL_LockSurface</TT
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></A
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></P
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="sdlupdaterect.html"
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>Prev</A
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></TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="index.html"
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>Home</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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><A
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HREF="sdlflip.html"
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>Next</A
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></TD
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></TR
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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>SDL_UpdateRect</TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="video.html"
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>Up</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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>SDL_Flip</TD
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></TR
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></TABLE
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></DIV
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></BODY
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></HTML
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>
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