wxWidgets/docs/tech/tn0009.htm
Vadim Zeitlin 3f66f6a5b3 Remove all lines containing cvs/svn "$Id$" keyword.
This keyword is not expanded by Git which means it's not replaced with the
correct revision value in the releases made using git-based scripts and it's
confusing to have lines with unexpanded "$Id$" in the released files. As
expanding them with Git is not that simple (it could be done with git archive
and export-subst attribute) and there are not many benefits in having them in
the first place, just remove all these lines.

If nothing else, this will make an eventual transition to Git simpler.

Closes #14487.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74602 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2013-07-26 16:02:46 +00:00

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<TITLE>Creating and converting icons</TITLE>
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Creating and converting icons
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<P>
Icons are bitmaps that may contain transparency information. Under X, icons are
usually created from XPM files, which may be loaded from a file or created from
data embedded in a C++ source file.<P>
Under Windows, icon files (extension .ico) may contain multiple icons for different sizes and colour
depths, and can be loaded from a file or loaded from the Windows resources compiled
into the executable.<P>
You can decide to use only XPMs on Windows and Unix, or you could use XPMs on Unix and
Windows icons under Windows -- the latter will require some #ifdefs in your code or use of the wxICON macro.<P>
If you are using a compiler such as Borland C++, Visual C++ or Watcom C++, you
can use the provided icon editor. However, if using Cygwin or Mingw32, there
is no icon editor so you must obtain one separately, such as <a href="http://hotfiles.zdnet.com/cgi-bin/texis/swlib/hotfiles/info.html?fcode=00165P">IconEdit32</a>.<P>
To convert from XPM to BMP (which can be loaded or pasted into an icon editor to save as an ICO file),
you can use Vadim Zeitlin's <a href="ftp://biolpc22.york.ac.uk/pub/support/xpm2bmp.exe">xpm2bmp.exe</a> utility.
To convert from BMP to XPM, you can use <a href="ftp://biolpc22.york.ac.uk/pub/support/bmp2xpm.exe">bmp2xpm.exe</a>
which is actually the old wxWidgets 1.68 utility, xpmshow. You will have to edit the resulting
file since the full path is used as the variable name, plus you may wish to specify a transparent colour e.g.:<P>
<pre>
" s None c None",
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This will indicate that the space character will be taken as the transparent colour throughout the image.<P>
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