Mercurial > sdl-ios-xcode
view docs/html/sdlsetcolorkey.html @ 2825:620a91b6d263
Date: Tue, 02 Dec 2008 23:38:26 +0100
From: Couriersud
Subject: Re: SDL: Keyboard layout unknown
I have attached a diff which will add an additional keyboard layout to
the x11 driver. The issue arose, when I moved to ubuntu intrepid. I was
only able to map the keys available on my keyboard. The differences to
the existing keyboard was the mapping of HOME,UP,DOWN and some other
keys.
Now only one issue remains. Dead keys (e.g. ^, ` ') on european
keyboards do not generate a "scancode" event. Just a text event when the
key is composed (e.g. ?? ?? ??).
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Wed, 03 Dec 2008 04:32:24 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_SetColorKey</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="SDL Library Documentation" HREF="index.html"><LINK REL="UP" TITLE="Video" HREF="video.html"><LINK REL="PREVIOUS" TITLE="SDL_SaveBMP" HREF="sdlsavebmp.html"><LINK REL="NEXT" TITLE="SDL_SetAlpha" HREF="sdlsetalpha.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFF8DC" TEXT="#000000" LINK="#0000ee" VLINK="#551a8b" ALINK="#ff0000" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >SDL Library Documentation</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="sdlsavebmp.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlsetalpha.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLSETCOLORKEY" ></A >SDL_SetColorKey</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN2045" ></A ><H2 >Name</H2 >SDL_SetColorKey -- Sets the color key (transparent pixel) in a blittable surface and RLE acceleration.</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN2048" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN2049" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >int <B CLASS="FSFUNC" >SDL_SetColorKey</B ></CODE >(SDL_Surface *surface, Uint32 flag, Uint32 key);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN2055" ></A ><H2 >Description</H2 ><P > Sets the color key (transparent pixel) in a blittable surface and enables or disables RLE blit acceleration.</P ><P >RLE acceleration can substantially speed up blitting of images with large horizontal runs of transparent pixels (i.e., pixels that match the <TT CLASS="PARAMETER" ><I >key</I ></TT > value). The <TT CLASS="PARAMETER" ><I >key</I ></TT > must be of the same pixel format as the <TT CLASS="PARAMETER" ><I >surface</I ></TT >, <A HREF="sdlmaprgb.html" ><TT CLASS="FUNCTION" >SDL_MapRGB</TT ></A > is often useful for obtaining an acceptable value.</P ><P >If <TT CLASS="PARAMETER" ><I >flag</I ></TT > is <TT CLASS="LITERAL" >SDL_SRCCOLORKEY</TT > then <TT CLASS="PARAMETER" ><I >key</I ></TT > is the transparent pixel value in the source image of a blit.</P ><P >If <TT CLASS="PARAMETER" ><I >flag</I ></TT > is OR'd with <TT CLASS="LITERAL" >SDL_RLEACCEL</TT > then the surface will be draw using RLE acceleration when drawn with <A HREF="sdlblitsurface.html" >SDL_BlitSurface</A >. The surface will actually be encoded for RLE acceleration the first time <A HREF="sdlblitsurface.html" >SDL_BlitSurface</A > or <A HREF="sdldisplayformat.html" >SDL_DisplayFormat</A > is called on the surface.</P ><P >If <TT CLASS="PARAMETER" ><I >flag</I ></TT > is 0, this function clears any current color key.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN2076" ></A ><H2 >Return Value</H2 ><P >This function returns <SPAN CLASS="RETURNVALUE" >0</SPAN >, or <SPAN CLASS="RETURNVALUE" >-1</SPAN > if there was an error.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN2081" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlblitsurface.html" ><TT CLASS="FUNCTION" >SDL_BlitSurface</TT ></A >, <A HREF="sdldisplayformat.html" ><TT CLASS="FUNCTION" >SDL_DisplayFormat</TT ></A >, <A HREF="sdlmaprgb.html" ><TT CLASS="FUNCTION" >SDL_MapRGB</TT ></A >, <A HREF="sdlsetalpha.html" ><TT CLASS="FUNCTION" >SDL_SetAlpha</TT ></A ></P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sdlsavebmp.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sdlsetalpha.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_SaveBMP</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="video.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_SetAlpha</TD ></TR ></TABLE ></DIV ></BODY ></HTML >