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<HTML><HEAD><TITLE>DynamicHelp</TITLE></HEAD><BODY BGCOLOR=white><DL><DT><I><A HREF="#descr">NAME</A></I></DT><DD><B>DynamicHelp</B> - Provide help to Tk widget or BWidget</DD></DL><DL><DT><I><A HREF="#wc">COMMAND</A></I></DT><DD>DynamicHelp::<A HREF="#configure"><B>configure</B></A> ?<I>option</I>? ?<I>value</I> <I>option</I> <I>value</I> ...?</DD><DD>DynamicHelp::<A HREF="#include"><B>include</B></A> <I>class</I> <I>type</I></DD><DD>DynamicHelp::<A HREF="#register"><B>register</B></A> <I>path</I> <I>type</I> ?<I>arg...</I>?</DD><DD>DynamicHelp::<A HREF="#sethelp"><B>sethelp</B></A> <I>path</I> <I>subpath</I> ?<I>force</I>?</DD></DL><BR><HR WIDTH="100%"><BR><B><A NAME="descr"></A>DESCRIPTION</B><BR><P>Description text</P><HR WIDTH="50%"><BR><B><A NAME="wc">COMMAND</A></B><BR><DL><DT><A NAME="configure">DynamicHelp::<B>configure</B></A> ?<I>option</I>? ?<I>value</I> <I>option</I> <I>value</I> ...?</DT><DD>This command configure the ballon help.<P><DL><DT><A NAME="DynamicHelp-borderwidth"><B>-borderwidth</B></A></DT><DD>Width of the black border around the balloon.</DD></DL><DL><DT><A NAME="DynamicHelp-delay"><B>-delay</B></A></DT><DD>Define the delay in millisecond of mouse inactivity before displayingthe balloon.</DD></DL><BR>Other standard options are:<DD><TABLE CELLSPACING=0 CELLSPACING=0 BORDER=0><TR><TD> <A HREF="options.htm#M-background">-background or -bg</A></TD><TD> <A HREF="options.htm#M-font">-font</A></TR></TR><TR><TD> <A HREF="options.htm#M-foreground">-foreground or -fg</A></TD><TD> <A HREF="options.htm#M-justify">-justify</A></TR></TR></TABLE></DD></DD></DL><DL><DT><A NAME="include">DynamicHelp::<B>include</B></A> <I>class</I> <I>type</I></DT><DD>Description text</DD></DL><DL><DT><A NAME="register">DynamicHelp::<B>register</B></A> <I>path</I> <I>type</I> ?<I>arg...</I>?</DT><DD>Register a help text to the widget <I>path</I>.<I>type</I> determines the type of the help or the type of the widget.Depending on <I>type</I>, other options must be provided.<BR><TABLE CELLSPACING=5 CELLPADDING=0 BORDER=0><TR><TD><B> type </B></TD><TD><B> options </B></TD></TR><TR><TD><B><I> balloon </I></B></TD><TD><I> text </I></TD></TR><TR><TD><B><I> variable </I></B></TD><TD><I> varName text </I></TD></TR><TR><TD><B><I> menu </I></B></TD><TD><I> varName </I></TD></TR><TR><TD><B><I> menuentry </I></B></TD><TD><I> index text </I></TD></TR></TABLE><BR>If one of the option is missing or is empty, help is removed for this widget.<BR>For type other than <I>balloon</I>, <I>varName</I> is typically a variablelinked to a label.<BR>For menu, balloon type help is not available. To declare a help for menu,you first declare the menu, and then entries of this menu.<BR>For example:<BR><BR><CENTER><TABLE BORDER=2 CELLSPACING=2 WIDTH="80%"><TR><TD><PRE> <FONT COLOR=red><I># create menu</I></FONT>menu .m -type menubar<FONT COLOR=red><I># associate menubar to toplevel BEFORE DynamicHelp::register</I></FONT><FONT COLOR=red><I># to make it works with menu clone name</I></FONT>. configure -menu .m.m add cascade -label "File" -menu .m.filemenu .m.file.m.file add command -label "Open...".m.file add command -label "Quit"<FONT COLOR=red><I># create label for help, using variable varinfo</I></FONT>label .l -textvariable varinfo<FONT COLOR=red><I># associate all entries of menu .m.file to variable varinfo</I></FONT>DynamicHelp::register .m.file menu varinfo<FONT COLOR=red><I># then declare entries of .m.file</I></FONT>DynamicHelp::register .m.file menuentry 0 "Detach menu"DynamicHelp::register .m.file menuentry 1 "Open a file"DynamicHelp::register .m.file menuentry 2 "Exit demo"</PRE></TD></TR></TABLE></CENTER><BR><BR>Notice that if popup menu is owned by a menubar, you must associate first the menubarto its toplevel. In this case, when you create a menu popup, its clone window is alsocreated, and DynamicHelp::register detects the exitence of the clone window and mapsevents to it.</DD></DL><DL><DT><A NAME="sethelp">DynamicHelp::<B>sethelp</B></A> <I>path</I> <I>subpath</I> ?<I>force</I>?</DT><DD>Description text</DD></DL></BODY></HTML>⌨️ 快捷键说明
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