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Import Tix 8.4.3.5 (as of svn r86089)

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Zachary Ware
2017-05-22 16:16:49 -05:00
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<HEAD>
<TITLE> Initialization of Public Variables<A NAME=651>&nbsp;</A></TITLE>
</HEAD>
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<HR> <P>
<A NAME=Contents>&nbsp;</A><H3><A NAME=SECTION00085100000000000000> Initialization of Public Variables<A NAME=651>&nbsp;</A></A></H3>
<P>
When a widget instance is created, all of its public variables are
initialized by the Tix Intrinsics before the <tt>InitWidgetRec</tt>
method is called. Therefore, <tt>InitWidgetRec</tt> and any other
method of this widgte instance are free to assume that all the
public variables have been properly initialized and use them as
such.
<P>The public variables are initialized by the following criteria.
<P>
<blockquote> <UL><P><LI><P>Step 1: If the value of the variable is specified by the
creation command, this value is used. For example, if the
application programmer has created an instance in the following way:
<P>
<blockquote> <P><tt> tixArrowButton .arr -direction n
</tt>
<P></blockquote>
<P>The value <tt>n</tt> will be used for the -direction variable.
<P><LI><P>Step 2: if step 1 fails but the value of the variable is
specified in the options database, that value is used. For example,
if the user has created an instance in the following way:
<P>
<blockquote> <P><tt> option add *TixArrowButton.direction w<BR>
tixArrowButton .arr
</tt>
<P></blockquote>
<P>The value <tt>w</tt> will be used for the <tt>-direction</tt> variable.
<P><LI><P>Step3: if step 2 also fails, the default value specified in
the <tt>-configspec</tt> secton of the class declaration will be used.
<P></UL>
</blockquote>
<P>
<HR>
</FONT>
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<P><ADDRESS>
<A HREF=http://tix.sourceforge.net>http://tix.sourceforge.net</A><BR>
</ADDRESS>