609 lines
18 KiB
HTML
609 lines
18 KiB
HTML
<HTML>
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<HEAD><TITLE>ListBox</TITLE></HEAD>
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<BODY BGCOLOR=white>
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<DL><DT><I><A HREF="#descr">NAME</A></I></DT>
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<DD><B>ListBox</B>
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- ListBox widget
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</DD></DL>
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<DL>
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<DT><I>CREATION</I></DT>
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<DD><A HREF="#descr"><B>ListBox</B></A> <I>pathName</I> ?<I>option value...</I>?</DD>
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</DL>
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<DL>
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<DT><I>STANDARD OPTIONS</I></DT>
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<DD><TABLE CELLSPACING=0 CELLSPACING=0 BORDER=0>
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<TR>
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<TD> <A HREF="options.htm#M-background">-background or -bg</A></TD>
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<TD> <A HREF="options.htm#M-borderwidth">-borderwidth or -bd</A></TD>
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</TR>
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<TR>
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<TD> <A HREF="options.htm#M-cursor">-cursor</A></TR>
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<TD> <A HREF="options.htm#M-highlightbackground">-highlightbackground</A></TR>
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</TR>
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<TR>
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<TD> <A HREF="options.htm#M-highlightcolor">-highlightcolor</A></TR>
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<TD> <A HREF="options.htm#M-highlightthickness">-highlightthickness</A></TR>
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</TR>
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<TR>
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<TD> <A HREF="options.htm#M-relief">-relief</A></TR>
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<TD> <A HREF="options.htm#M-selectbackground">-selectbackground</A></TR>
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</TR>
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<TR>
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<TD> <A HREF="options.htm#M-selectforeground">-selectforeground</A></TR>
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<TD> <A HREF="options.htm#M-takefocus">-takefocus</A></TR>
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</TR>
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<TR>
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<TD> <A HREF="options.htm#M-xscrollcommand">-xscrollcommand</A></TR>
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<TD> <A HREF="options.htm#M-yscrollcommand">-yscrollcommand</A></TR>
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</TR>
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</TABLE></DD>
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</DL>
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<DL>
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<DT><I><A HREF="#wso">WIDGET-SPECIFIC OPTIONS</A></I></DT>
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<DD><TABLE CELLSPACING=0 CELLSPACING=0 BORDER=0>
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<TR>
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<TD> <A HREF="#-deltax">-deltax</A></TR>
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<TD> <A HREF="#-deltay">-deltay</A></TR>
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</TR>
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<TR>
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<TD> <A HREF="#-dragenabled">-dragenabled</A></TR>
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<TD> <A HREF="#-dragendcmd">-dragendcmd</A></TR>
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</TR>
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<TR>
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<TD> <A HREF="#-dragevent">-dragevent</A></TR>
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<TD> <A HREF="#-draginitcmd">-draginitcmd</A></TR>
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</TR>
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<TR>
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<TD> <A HREF="#-dragtype">-dragtype</A></TR>
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<TD> <A HREF="#-dropcmd">-dropcmd</A></TR>
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</TR>
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<TR>
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<TD> <A HREF="#-dropenabled">-dropenabled</A></TR>
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<TD> <A HREF="#-dropovercmd">-dropovercmd</A></TR>
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</TR>
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<TR>
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<TD> <A HREF="#-dropovermode">-dropovermode</A></TR>
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<TD> <A HREF="#-droptypes">-droptypes</A></TR>
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</TR>
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<TR>
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<TD> <A HREF="#-height">-height</A></TR>
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<TD> <A HREF="#-multicolumn">-multicolumn</A></TR>
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</TR>
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<TR>
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<TD> <A HREF="#-padx">-padx</A></TR>
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<TD> <A HREF="#-redraw">-redraw</A></TR>
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</TR>
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<TR>
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<TD> <A HREF="#-width">-width</A></TR>
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</TABLE></DD>
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</DL>
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<DL>
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<DT><I><A HREF="#wc">WIDGET COMMAND</A></I></DT>
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<DD><I>pathName</I> <A HREF="#bindImage"><B>bindImage</B></A>
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<I>event</I>
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<I>script</I>
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</DD>
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<DD><I>pathName</I> <A HREF="#bindText"><B>bindText</B></A>
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<I>event</I>
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<I>script</I>
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</DD>
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<DD><I>pathName</I> <A HREF="#cget"><B>cget</B></A>
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<I>option</I>
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</DD>
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<DD><I>pathName</I> <A HREF="#configure"><B>configure</B></A>
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?<I>option</I>? ?<I>value</I> <I>option</I> <I>value</I> ...?
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</DD>
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<DD><I>pathName</I> <A HREF="#delete"><B>delete</B></A>
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?<I>arg...</I>?
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</DD>
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<DD><I>pathName</I> <A HREF="#edit"><B>edit</B></A>
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<I>item</I>
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<I>text</I>
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?<I>verifycmd</I>?
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?<I>clickres</I>?
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?<I>select</I>?
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</DD>
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<DD><I>pathName</I> <A HREF="#exists"><B>exists</B></A>
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<I>item</I>
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</DD>
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<DD><I>pathName</I> <A HREF="#index"><B>index</B></A>
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<I>item</I>
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</DD>
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<DD><I>pathName</I> <A HREF="#insert"><B>insert</B></A>
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<I>index</I>
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<I>item</I>
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?<I>option value...</I>?
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</DD>
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<DD><I>pathName</I> <A HREF="#item"><B>item</B></A>
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<I>first</I>
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?<I>last</I>?
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</DD>
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<DD><I>pathName</I> <A HREF="#itemcget"><B>itemcget</B></A>
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<I>item</I>
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<I>option</I>
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</DD>
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<DD><I>pathName</I> <A HREF="#itemconfigure"><B>itemconfigure</B></A>
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<I>item</I>
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?<I>option</I>? ?<I>value</I> <I>option</I> <I>value</I> ...?
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</DD>
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<DD><I>pathName</I> <A HREF="#items"><B>items</B></A>
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?<I>first</I>?
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?<I>last</I>?
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</DD>
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<DD><I>pathName</I> <A HREF="#move"><B>move</B></A>
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<I>item</I>
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<I>index</I>
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</DD>
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<DD><I>pathName</I> <A HREF="#reorder"><B>reorder</B></A>
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<I>neworder</I>
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</DD>
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<DD><I>pathName</I> <A HREF="#see"><B>see</B></A>
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<I>item</I>
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</DD>
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<DD><I>pathName</I> <A HREF="#selection"><B>selection</B></A>
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<I>cmd</I>
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?<I>arg...</I>?
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</DD>
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<DD><I>pathName</I> <A HREF="#xview"><B>xview</B></A>
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?<I>arg...</I>?
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</DD>
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<DD><I>pathName</I> <A HREF="#yview"><B>yview</B></A>
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?<I>arg...</I>?
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</DD>
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</DL>
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<BR><HR WIDTH="100%"><BR>
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<B><A NAME="descr"></A>DESCRIPTION</B><BR>
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<P>
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<B>ListBox</B> widget uses canvas to display a list of items.
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Each item is composed of a label with its own font and foreground attributes, and an optional
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image or window. Each item is drawn in a single line, whose height is defined by the
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<B>deltay</B> option, so they must have at most this height.
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A item is uniquely identified by a string given at creation (by the
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<B>insert</B> command). The ListBox can have one or more columns, depending on
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<B>multicolumn</B> option. The user do not handle columns; the number of columns
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is determined following the height of the ListBox in order to see each item vertically.
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</P>
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<BR><HR WIDTH="50%"><BR>
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<B><A NAME="wso">WIDGET-SPECIFIC OPTIONS</A></B><BR>
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<DL><DT><A NAME="-deltax"><B>-deltax</B></A></DT>
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<DD>
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Specifies horizontal pad between each columns.
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</DD>
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</DL>
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<DL><DT><A NAME="-deltay"><B>-deltay</B></A></DT>
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<DD>
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Specifies vertical size of the items.
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</DD>
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</DL>
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<DL><DT><A NAME="-dragenabled"><B>-dragenabled</B></A></DT>
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<DD>
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A boolean specifying if drag is enabled.
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</DD>
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</DL>
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<DL><DT><A NAME="-dragendcmd"><B>-dragendcmd</B></A></DT>
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<DD>
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Specifies a command to be called when drag ended.
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<B>dragendcmd</B> must be a command conforming to the description of the
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option <B>dragendcmd</B> of <B>DragSite::<A HREF="DragSite.html#register">register</A></B>.
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</DD>
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</DL>
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<DL><DT><A NAME="-dragevent"><B>-dragevent</B></A></DT>
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<DD>
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Specifies the number of the mouse button associated to the drag.
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Must be <B>1</B>, <B>2</B> or <B>3</B>.
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</DD>
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</DL>
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<DL><DT><A NAME="-draginitcmd"><B>-draginitcmd</B></A></DT>
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<DD>
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ListBox has a command wrapper for <I>drag-init</I> events. This command refused the drag
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if no item is designated. In other cases:
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<BR>If <B>draginitcmd</B> is empty, it returns:
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<UL>
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<LI>the value of option <B>dragtype</B> or <I>LISTBOX_ITEM</I> if empty as the data type,
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<LI><I>{move copy link}</I> as the operations,
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<LI>the item identifier as the data.
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</UL>
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If <B>draginitcmd</B> is not empty, it is called with the following arguments:
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<UL>
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<LI>the pathname of the listbox,
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<LI>the identifier of the dragged item,
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<LI>the toplevel created to represent dragged data.
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</UL>
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and must return a value conforming to <B>draginitcmd</B> option described in
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<B>DragSite::<A HREF="DragSite.html#register">register</A></B>.
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</DD>
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</DL>
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<DL><DT><A NAME="-dragtype"><B>-dragtype</B></A></DT>
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<DD>
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Specifies an alternate type of dragged object.
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</DD>
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</DL>
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<DL><DT><A NAME="-dropcmd"><B>-dropcmd</B></A></DT>
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<DD>
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ListBox has a command wrapper for <I>drop</I> events. This command stops auto scrolling
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and extract item and position.
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<BR>If <B>dropcmd</B> is not empty, it is called with the following arguments:
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<UL>
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<LI>the pathname of the listbox,
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<LI>the pathname of the drag source,
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<LI>a list describing where the drop occurs. It can be:
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<UL>
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<LI><I>{</I><B>widget</B><I>}</I>,
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<LI><I>{</I><B>item</B> <I>item}</I> or
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<LI><I>{</I><B>position</B> <I>index}</I>.
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</UL>
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<LI>the current operation,
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<LI>the data type,
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<LI>the data.
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</UL>
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</DD>
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</DL>
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<DL><DT><A NAME="-dropenabled"><B>-dropenabled</B></A></DT>
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<DD>
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A boolean specifying if drop is enabled.
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</DD>
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</DL>
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<DL><DT><A NAME="-dropovercmd"><B>-dropovercmd</B></A></DT>
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<DD>
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LsitBox has a command wrapper for <I>drag-over</I> events. This command enables auto scrolling
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and position extraction during the <I>drag-over</I>.
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If <B>dropovercmd</B> is not empty, the command is called with the following aguments:
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<UL>
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<LI>the pathname of the listbox,
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<LI>the pathname of the drag source,
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<LI>a list describing where the drop can occur, whose elements are:
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<UL>
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<LI>the string <I>widget</I> if <B>dropovertype</B> option contains <I>w</I>, else empty string.
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<LI>the targeted item if drag icon points an item and <B>dropovertype</B> option contains
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<I>i</I>, else empty string.
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<LI>an index within two items where drag icon points to if <B>dropovertype</B> option
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contains <I>p</I>, else empty string.
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<LI>optionally, the preferred method if drop can occur both inside an item and between two
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items. The value is <I>position</I> or <I>item</I>.
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</UL>
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<LI>the current operation,
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<LI>the data type,
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<LI>the data.
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</UL>
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The command must return a list with two elements:
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<UL>
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<LI>the drop status, conforming to those described in <B>dropovercmd</B> option of
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<B>DropSite::<A HREF="DropSite.html#register">register</A></B>,
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<LI>the choosen method: <I>widget</I>, <I>item</I> or <I>position</I>.
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</UL>
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</DD>
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</DL>
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<DL><DT><A NAME="-dropovermode"><B>-dropovermode</B></A></DT>
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<DD>
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Specifies the type of <I>drop-over</I> interaction. Must be a combination of
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<B>w</B>, which specifies that drop can occurs everywhere on widget,
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<B>p</B>, which specifies that drop can occurs between two items,
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and <B>i</B>, which specifies that drop occurs inside items.
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</DD>
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</DL>
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<DL><DT><A NAME="-droptypes"><B>-droptypes</B></A></DT>
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<DD>
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Specifies a list of accepted dropped object/operation.
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See option <B>droptypes</B> of
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<B>DropSite::<A HREF="DropSite.html#register">register</A></B>.
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for more infromation.
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<BR>Default is <I>LISTBOX_ITEM</I> with operations <B>copy</B> and <B>move</B>.
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</DD>
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</DL>
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<DL><DT><A NAME="-height"><B>-height</B></A></DT>
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<DD>
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Specifies the desired height for the listbox in units of <B>deltay</B> pixels.
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</DD>
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</DL>
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<DL><DT><A NAME="-multicolumn"><B>-multicolumn</B></A></DT>
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<DD>
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Specifies wether or not ListBox layouts items in order to see each one vertically.
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</DD>
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</DL>
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<DL><DT><A NAME="-padx"><B>-padx</B></A></DT>
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<DD>
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Specifies distance between image or window and text of the items.
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</DD>
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</DL>
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<DL><DT><A NAME="-redraw"><B>-redraw</B></A></DT>
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<DD>
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Specifies wether or not the listbox should be redrawn when entering idle.
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Set it to false if you call <B>update</B> while modifying the listbox.
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</DD>
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</DL>
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<DL><DT><A NAME="-width"><B>-width</B></A></DT>
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<DD>
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Specifies the desired width for the listbox in units of 8 pixels.
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</DD>
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</DL>
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<HR WIDTH="50%"><BR>
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<B><A NAME="wc">WIDGET COMMAND</A></B><BR>
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<DL><DT><A NAME="bindImage"><I>pathName</I> <B>bindImage</B></A>
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<I>event</I>
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<I>script</I>
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</DT><DD>
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This command associates a command to execute whenever the event
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sequence given by <I>event</I> occurs on the image of a item.
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The item idenfier on which the event occurs is appended to the command.
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</DD></DL>
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<DL><DT><A NAME="bindText"><I>pathName</I> <B>bindText</B></A>
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<I>event</I>
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<I>script</I>
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</DT><DD>
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This command associates a command to execute whenever the event
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sequence given by <I>event</I> occurs on the label of a item.
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The item idenfier on which the event occurs is appended to the command.
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</DD></DL>
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<DL><DT><A NAME="cget"><I>pathName</I> <B>cget</B></A>
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<I>option</I>
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</DT><DD>
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Returns the current value of the configuration option given by <I>option</I>.
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<I>Option</I> may have any of the values accepted by the creation command.
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</DD></DL>
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<DL><DT><A NAME="configure"><I>pathName</I> <B>configure</B></A>
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?<I>option</I>? ?<I>value</I> <I>option</I> <I>value</I> ...?
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</DT><DD>
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Query or modify the configuration options of the widget. If no <I>option</I> is specified,
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returns a list describing all of the available options for <I>pathName</I>.
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If <I>option</I> is specified with no <I>value</I>, then the command returns a list
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describing the one named <I>option</I> (this list will be identical to the corresponding
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sublist of the value returned if no <I>option</I> is specified). If one or
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more <I>option-value</I> pairs are specified, then the command modifies the given widget
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option(s) to have the given value(s); in this case the command returns an empty string.
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<I>Option</I> may have any of the values accepted by the creation command.
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Read-only options are not be modified.
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</DD></DL>
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<DL><DT><A NAME="delete"><I>pathName</I> <B>delete</B></A>
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?<I>arg...</I>?
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</DT><DD>
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Deletes all items in <I>arg</I>. <I>arg</I> can be a list
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of items or a list of list of items.
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To delete all items, do <I>$pathName delete [$pathName items]</I>.
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</DD></DL>
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<DL><DT><A NAME="edit"><I>pathName</I> <B>edit</B></A>
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<I>item</I>
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<I>text</I>
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?<I>verifycmd</I>?
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?<I>clickres</I>?
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?<I>select</I>?
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</DT><DD>
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Provides a way for the user to edit in place the label of an item.
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<BR>The command takes the initial text as argument and does not modify the label of the
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edited node, but returns an empty string if edition is canceled, or the typed text
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if edition is accepted.
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<BR>When editing, the user can cancel by pressing Escape, or accept by pressing Return.
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<BR><I>clickres</I> specifies what to do if the user click outside the editable area.
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If <I>clickres</I> is 0 (the default), the edition is canceled.
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If <I>clickres</I> is 1, the edition is accepted.
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In all other case, the edition continues.
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<BR>If edition is accepted and <I>modifycmd</I> is not empty, then it is called with
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the new text as argument and must return 1 to accept the new text, 0 to refuse it
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and continue edition.
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<BR><I>select</I> specifies wether or not the initial text should be selected. Default is 1.
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</DD></DL>
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<DL><DT><A NAME="exists"><I>pathName</I> <B>exists</B></A>
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<I>item</I>
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</DT><DD>
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Returns 1 if <I>item</I> exists in the listbox, else 0.
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</DD></DL>
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|
<DL><DT><A NAME="index"><I>pathName</I> <B>index</B></A>
|
|
<I>item</I>
|
|
</DT><DD>
|
|
|
|
Returns the position of <I>item</I> in the list.
|
|
|
|
</DD></DL>
|
|
<DL><DT><A NAME="insert"><I>pathName</I> <B>insert</B></A>
|
|
<I>index</I>
|
|
<I>item</I>
|
|
?<I>option value...</I>?
|
|
</DT><DD>
|
|
|
|
Inserts a new item identified by <I>item</I> in the list at position <I>index</I>.
|
|
|
|
<P>
|
|
<DL><DT><A NAME="Item-data"><B>-data</B></A></DT>
|
|
<DD>
|
|
|
|
User data associated to the item.
|
|
|
|
</DD>
|
|
</DL>
|
|
<DL><DT><A NAME="Item-fill"><B>-fill</B></A></DT>
|
|
<DD>
|
|
|
|
Specifies the foreground color of the label of the item.
|
|
|
|
</DD>
|
|
</DL>
|
|
<DL><DT><A NAME="Item-font"><B>-font</B></A></DT>
|
|
<DD>
|
|
|
|
Specifies a font for the label of the item.
|
|
|
|
</DD>
|
|
</DL>
|
|
<DL><DT><A NAME="Item-image"><B>-image</B></A></DT>
|
|
<DD>
|
|
|
|
Specifies an image to display at the left of the label of the item.
|
|
<B>window</B> option override <B>image</B>.
|
|
</DD>
|
|
</DL>
|
|
<DL><DT><A NAME="Item-indent"><B>-indent</B></A></DT>
|
|
<DD>
|
|
|
|
Specifies the amount of extra space in pixels at the left of the item.
|
|
|
|
</DD>
|
|
</DL>
|
|
<DL><DT><A NAME="Item-text"><B>-text</B></A></DT>
|
|
<DD>
|
|
|
|
Specifies the label of the item.
|
|
|
|
</DD>
|
|
</DL>
|
|
<DL><DT><A NAME="Item-window"><B>-window</B></A></DT>
|
|
<DD>
|
|
|
|
Specifies a pathname to display at the left of the label of the item.
|
|
<B>window</B> option override <B>image</B>.
|
|
</DD>
|
|
</DL>
|
|
</DD></DL>
|
|
<DL><DT><A NAME="item"><I>pathName</I> <B>item</B></A>
|
|
<I>first</I>
|
|
?<I>last</I>?
|
|
</DT><DD>
|
|
|
|
<B>Its use is deprecated. Use <I>items</I> instead.</B><BR>
|
|
If <I>last</I> is omitted, returns the item at index <I>first</I> in the list,
|
|
or an empty string if <I>first</I> refers to a non-existent element.
|
|
If <I>last</I> is specified, the command returns a list whose elements are all
|
|
of the items between <I>first</I> and <I>last</I>, inclusive.
|
|
Both <I>first</I> and <I>last</I> may have any of the standard forms for indices.
|
|
|
|
</DD></DL>
|
|
<DL><DT><A NAME="itemcget"><I>pathName</I> <B>itemcget</B></A>
|
|
<I>item</I>
|
|
<I>option</I>
|
|
</DT><DD>
|
|
|
|
Returns the current value of a configuration option for the item.
|
|
<I>Option</I> may have any of the values accepted by the item creation command.
|
|
|
|
</DD></DL>
|
|
<DL><DT><A NAME="itemconfigure"><I>pathName</I> <B>itemconfigure</B></A>
|
|
<I>item</I>
|
|
?<I>option</I>? ?<I>value</I> <I>option</I> <I>value</I> ...?
|
|
</DT><DD>
|
|
|
|
This command is similar to the <B>configure</B> command, except that it applies to the
|
|
options for an individual item, whereas <B>configure</B> applies to the options for
|
|
the widget as a whole. <B>Options</B> may have any of the values accepted by the
|
|
item creation widget command. If options are specified, options are modified as indicated
|
|
in the command and the command returns an empty string. If no options are specified,
|
|
returns a list describing the current options for the item.
|
|
Read-only options are not be modified.
|
|
|
|
</DD></DL>
|
|
<DL><DT><A NAME="items"><I>pathName</I> <B>items</B></A>
|
|
?<I>first</I>?
|
|
?<I>last</I>?
|
|
</DT><DD>
|
|
|
|
If <I>first</I> and <I>last</I> are omitted, returns the list of all items.
|
|
If <I>first</I> is specified and <I>last</I> omitted, returns the item at index
|
|
<I>first</I>, or an empty string if <I>first</I> refers to a non-existent element.
|
|
If <I>first</I> and <I>last</I> are specified, the command returns a list whose elements
|
|
are all of the items between <I>first</I> and <I>last</I>,
|
|
inclusive. Both <I>first</I> and <I>last</I> may have any of the standard
|
|
forms for indices.
|
|
|
|
</DD></DL>
|
|
<DL><DT><A NAME="move"><I>pathName</I> <B>move</B></A>
|
|
<I>item</I>
|
|
<I>index</I>
|
|
</DT><DD>
|
|
|
|
Moves <I>item</I> at position <I>index</I> in the list.
|
|
|
|
</DD></DL>
|
|
<DL><DT><A NAME="reorder"><I>pathName</I> <B>reorder</B></A>
|
|
<I>neworder</I>
|
|
</DT><DD>
|
|
|
|
Modifies the order of items in the listbox given by <I>neworder</I>. Items that do not
|
|
appear in <I>neworder</I> are no moved.
|
|
|
|
</DD></DL>
|
|
<DL><DT><A NAME="see"><I>pathName</I> <B>see</B></A>
|
|
<I>item</I>
|
|
</DT><DD>
|
|
|
|
Arrange the scrolling area to make <I>item</I> visible.
|
|
|
|
</DD></DL>
|
|
<DL><DT><A NAME="selection"><I>pathName</I> <B>selection</B></A>
|
|
<I>cmd</I>
|
|
?<I>arg...</I>?
|
|
</DT><DD>
|
|
|
|
Modifies the list of selected items following <I>cmd</I>:
|
|
<DL>
|
|
<DT><B>clear</B>
|
|
<DD>remove all items of the selection.
|
|
<DT><B>set</B>
|
|
<DD>set the selection to all items in <I>arg</I>
|
|
<DT><B>add</B>
|
|
<DD>add all items of <I>arg</I> in the selection
|
|
<DT><B>remove</B>
|
|
<DD>remove all items of <I>arg</I> of the selection
|
|
<DT><B>get</B>
|
|
<DD>return the current selected items
|
|
</DL>
|
|
|
|
</DD></DL>
|
|
<DL><DT><A NAME="xview"><I>pathName</I> <B>xview</B></A>
|
|
?<I>arg...</I>?
|
|
</DT><DD>
|
|
|
|
Standard command to enable horizontal scrolling of <I>pathName</I>.
|
|
|
|
</DD></DL>
|
|
<DL><DT><A NAME="yview"><I>pathName</I> <B>yview</B></A>
|
|
?<I>arg...</I>?
|
|
</DT><DD>
|
|
|
|
Standard command to enable vertical scrolling of <I>pathName</I>.
|
|
|
|
</DD></DL>
|
|
</BODY></HTML>
|