Blob Blame History Raw
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>How do I catch a combo box change?</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
REL="HOME"
TITLE="GTK+ FAQ"
HREF="book1.html"><LINK
REL="UP"
TITLE="Development with GTK+: widget specific questions"
HREF="c698.html"><LINK
REL="PREVIOUS"
TITLE="I don't want the user of my applications to enter text
into a GtkCombo. Any idea?"
HREF="x743.html"><LINK
REL="NEXT"
TITLE="How can I define a separation line in a menu?"
HREF="x760.html"></HEAD
><BODY
CLASS="SECT1"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>GTK+ FAQ</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="x743.html"
ACCESSKEY="P"
>&#60;&#60;&#60; Previous</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
>Development with GTK+: widget specific questions</TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
HREF="x760.html"
ACCESSKEY="N"
>Next &#62;&#62;&#62;</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="AEN750"
>How do I catch a combo box change?</A
></H1
><P
>The entry which is associated to your GtkCombo send a
"changed" signal when:</P
><P
></P
><UL
><LI
><P
>some text is typed in</P
></LI
><LI
><P
>the selection of the combo box is changed</P
></LI
></UL
><P
>To catch any combo box change, simply connect your
signal handler with</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>      gtk_signal_connect(GTK_COMBO(cb)-&#62;entry,
                         "changed",
                         GTK_SIGNAL_FUNC(my_cb_change_handler),
                         NULL);</PRE
></TD
></TR
></TABLE
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="x743.html"
ACCESSKEY="P"
>&#60;&#60;&#60; Previous</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="book1.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="x760.html"
ACCESSKEY="N"
>Next &#62;&#62;&#62;</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>I don't want the user of my applications to enter text
into a GtkCombo. Any idea?</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="c698.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>How can I define a separation line in a menu?</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>