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<TITLE> Loading the New Classes<A NAME=67> </A></TITLE>
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<A NAME=Contents> </A><H2><A NAME=SECTION00087000000000000000> Loading the New Classes<A NAME=67> </A></A></H2>
<P>
Usually, you can use a separate script file to store the
implementaion of each new widget class. If you have several of those
files, it will be a good idea to group the files into a single
directory and create a <tt>tclIndex</tt> file for them so that the new
classes can be auto-loaded.
<P>
Suppose you have put the class files into the directory <tt>/usr/my/tix/classes</tt>. You can create the <tt>tclIndex</tt> file using
the <tt>tools/tixindex</tt> program that comes with Tix:
<P>
<blockquote> <P><tt> cd /usr/my/tix/classes<BR>
/usr/my/Tix8.1/tools/tixindex *.tcl
</tt>
<P></blockquote>
The <tt>tclIndex</tt> file must be created by the <tt>tixindex</tt>
program. You cannot use the standard <tt>auto_mkindex</tt> command
that comes with Tcl.
<P>
Once you have created the <tt>tclIndex</tt> file, you can use your new
widget classes by auto-loading. Here is a small demo program that
uses the new TixArrowButton class:
<P>
<blockquote> <P><tt> #!/usr/local/bin/tixwish<BR>
lappend auto_path /usr/my/tix/classes<BR>
<BR>
# Now I can use my TixArrowButton class!<BR>
#<BR>
tixArrowButton .arr -direction n<BR>
pack .arr
</tt>
<P></blockquote>
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