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Fixed bug #208 So, here's a patch with a reimplementation of QZ_SetIcon() that does what I described above. I apologize for the delay, I've been quite busy in the last few days. It appears to work here on 10.4.5 PPC in the limited testing that I've done; I'll try to test it on 10.3.9 and 10.2.8 as well, but that might take another week or so. Please test on i386. Regarding alpha channels, per-surface alpha, and color keys, the same semantics as for regular blits to an RGB surface should apply (for the final icon composited onto the dock), unless I made a mistake - except in one pathological case: if the icon surface has an alpha channel, its SDL_SRCALPHA flag is not set (i.e. it has been explicitly cleared, since it's on by default for RGBA surfaces), and it has a color key, plus an explicit mask was specified (instead of the one autogenerated from the colorkey), then the color-keyed areas appear black instead of transparent. I found no elegant way of fixing this, was too lazy to implement the inelegant one, and decided that it isn't worth the effort (but if someone disagrees, I can do it).
author Sam Lantinga <slouken@libsdl.org>
date Thu, 11 May 2006 03:45:55 +0000
parents 355632dca928
children
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<HTML
><HEAD
><TITLE
>SDL_Color</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
"><LINK
REL="HOME"
TITLE="SDL Library Documentation"
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><BODY
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><HR
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><H1
><A
NAME="SDLCOLOR"
></A
>SDL_Color</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN3082"
></A
><H2
>Name</H2
>SDL_Color&nbsp;--&nbsp;Format independent color description</DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN3085"
></A
><H2
>Structure Definition</H2
><PRE
CLASS="PROGRAMLISTING"
>typedef struct{
  Uint8 r;
  Uint8 g;
  Uint8 b;
  Uint8 unused;
} SDL_Color;</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN3088"
></A
><H2
>Structure Data</H2
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN3090"
></A
><P
></P
><TABLE
BORDER="0"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>r</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Red intensity</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>g</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Green intensity</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>b</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Blue intensity</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>unused</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Unused</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN3109"
></A
><H2
>Description</H2
><P
><SPAN
CLASS="STRUCTNAME"
>SDL_Color</SPAN
> describes a color in a format independent way. You can convert a <SPAN
CLASS="STRUCTNAME"
>SDL_Color</SPAN
> to a pixel value for a certain pixel format using <A
HREF="sdlmaprgb.html"
><TT
CLASS="FUNCTION"
>SDL_MapRGB</TT
></A
>.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN3116"
></A
><H2
>See Also</H2
><P
><A
HREF="sdlpixelformat.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_PixelFormat</SPAN
></A
>,
<A
HREF="sdlsetcolors.html"
><TT
CLASS="FUNCTION"
>SDL_SetColors</TT
></A
>,
<A
HREF="sdlpalette.html"
><TT
CLASS="FUNCTION"
>SDL_Palette</TT
></A
></P
></DIV
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><A
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>