<!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 double click event? [GTK 2.x]</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+: general questions" HREF="c466.html"><LINK REL="PREVIOUS" TITLE="How do I get the Window ID of a GtkWindow? [GTK 2.x]" HREF="x530.html"><LINK REL="NEXT" TITLE="By the way, what are the differences between signals and events?" HREF="x546.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="x530.html" ACCESSKEY="P" ><<< Previous</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" >Development with GTK+: general questions</TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="x546.html" ACCESSKEY="N" >Next >>></A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="AEN535" >How do I catch a double click event? <I CLASS="EMPHASIS" >[GTK 2.x]</I ></A ></H1 ><P >Tim Janik wrote to gtk-list (slightly modified):</P ><P >Define a signal handler:</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><PRE CLASS="PROGRAMLISTING" >gint signal_handler_event(GtkWidget *widget, GdkEventButton *event, gpointer func_data) { if (GTK_IS_BUTTON(widget) && (event->type==GDK_2BUTTON_PRESS || event->type==GDK_3BUTTON_PRESS) ) { printf("I feel %s clicked with button %d\n", event->type==GDK_2BUTTON_PRESS ? "double" : "triple", event->button); } return FALSE; }</PRE ></TD ></TR ></TABLE ><P >And connect the handler to your object:</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><PRE CLASS="PROGRAMLISTING" >{ /* button init stuff */ g_signal_connect(G_OBJECT(button), "button_press_event", G_CALLBACK(signal_handler_event), NULL); /* and/or */ g_signal_connect(G_OBJECT(button), "button_release_event", G_CALLBACK(signal_handler_event), NULL); /* something else */ }</PRE ></TD ></TR ></TABLE ><P >and, Owen Taylor wrote:</P ><P ><SPAN CLASS="QUOTE" >"Note that a single button press will be received beforehand, and if you are doing this for a button, you will therefore also get a "clicked" signal for the button. (This is going to be true for any toolkit, since computers aren't good at reading one's mind.)"</SPAN ></P ></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="x530.html" ACCESSKEY="P" ><<< 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="x546.html" ACCESSKEY="N" >Next >>></A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >How do I get the Window ID of a GtkWindow? <I CLASS="EMPHASIS" >[GTK 2.x]</I ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="c466.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >By the way, what are the differences between signals and events?</TD ></TR ></TABLE ></DIV ></BODY ></HTML >