Commit 051d7caf authored by GMT 2004  Tony Gale's avatar GMT 2004 Tony Gale Committed by Tony Gale

Updates to Section 5

Wed Jan 14 13:07:30 GMT 2004  Tony Gale <gale@gtk.org>

        * docs/faq/gtk-faq.sgml: Updates to Section 5
parent ecb75e12
Wed Jan 14 13:07:30 GMT 2004 Tony Gale <gale@gtk.org>
* docs/faq/gtk-faq.sgml: Updates to Section 5
Wed Jan 14 02:34:57 2004 Matthias Clasen <maclas@gmx.de>
* gtk/gtkradioaction.c: Add a writable group property to align
......
Wed Jan 14 13:07:30 GMT 2004 Tony Gale <gale@gtk.org>
* docs/faq/gtk-faq.sgml: Updates to Section 5
Wed Jan 14 02:34:57 2004 Matthias Clasen <maclas@gmx.de>
* gtk/gtkradioaction.c: Add a writable group property to align
......
Wed Jan 14 13:07:30 GMT 2004 Tony Gale <gale@gtk.org>
* docs/faq/gtk-faq.sgml: Updates to Section 5
Wed Jan 14 02:34:57 2004 Matthias Clasen <maclas@gmx.de>
* gtk/gtkradioaction.c: Add a writable group property to align
......
Wed Jan 14 13:07:30 GMT 2004 Tony Gale <gale@gtk.org>
* docs/faq/gtk-faq.sgml: Updates to Section 5
Wed Jan 14 02:34:57 2004 Matthias Clasen <maclas@gmx.de>
* gtk/gtkradioaction.c: Add a writable group property to align
......
Wed Jan 14 13:07:30 GMT 2004 Tony Gale <gale@gtk.org>
* docs/faq/gtk-faq.sgml: Updates to Section 5
Wed Jan 14 02:34:57 2004 Matthias Clasen <maclas@gmx.de>
* gtk/gtkradioaction.c: Add a writable group property to align
......
......@@ -2,7 +2,7 @@
<book>
<bookinfo>
<date>January 13th 2004</date>
<date>January 14th 2004</date>
<title>GTK+ FAQ</title>
<authorgroup>
<author>
......@@ -1469,7 +1469,7 @@ in a priority of G_PRIORITY_HIGH.</para>
<sect1>
<title>Why does this strange 'x io error' occur when I
<literal>fork()</literal> in my GTK+ app?</title>
<literal>fork()</literal> in my GTK+ app? <emphasis>[GTK 2.x]</emphasis></title>
<para>This is not really a GTK+ problem, and the problem is
not related to <literal>fork()</literal> either. If the 'x io
......@@ -1490,13 +1490,15 @@ illustrate handling fork() and exit().</para>
<programlisting role="C">
/*-------------------------------------------------------------------------
* Filename: gtk-fork.c
* Version: 0.99.1
* Version: 0.99.2
* Copyright: Copyright (C) 1999, Erik Mouw
* Author: Erik Mouw &lt;J.A.K.Mouw@its.tudelft.nl&gt;
* Description: GTK+ fork example
* Created at: Thu Sep 23 21:37:55 1999
* Modified by: Erik Mouw &lt;J.A.K.Mouw@its.tudelft.nl&gt;
* Modified at: Thu Sep 23 22:39:39 1999
* Modified by: Tony Gale &lt;gale@gtk.org&gt;
* Modified at: Wed Jan 14 12:38:00 2004
*-----------------------------------------------------------------------*/
/*
* Compile with:
......@@ -1525,7 +1527,7 @@ void sigchld_handler(int num)
sigprocmask(SIG_BLOCK, &amp;set, &amp;oldset);
/* wait for child */
while((pid = waitpid((pid_t)-1, &amp;status, WNOHANG)) > 0)
while((pid = waitpid((pid_t)-1, &amp;status, WNOHANG)) &gt; 0)
{
if(WIFEXITED(status))
{
......@@ -1622,13 +1624,13 @@ int main(int argc, char *argv[])
*/
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_signal_connect(GTK_OBJECT (window), "delete_event",
GTK_SIGNAL_FUNC(delete_event), NULL);
g_signal_connect(G_OBJECT (window), "delete_event",
G_CALLBACK(delete_event), NULL);
gtk_signal_connect(GTK_OBJECT (window), "destroy",
GTK_SIGNAL_FUNC(destroy), NULL);
g_signal_connect(G_OBJECT (window), "destroy",
G_CALLBACK(destroy), NULL);
#if (GTK_MAJOR_VERSION == 1) && (GTK_MINOR_VERSION == 0)
#if (GTK_MAJOR_VERSION == 1) &amp;&amp; (GTK_MINOR_VERSION == 0)
gtk_container_border_width(GTK_CONTAINER (window), 10);
#else
gtk_container_set_border_width(GTK_CONTAINER (window), 10);
......@@ -1637,8 +1639,8 @@ int main(int argc, char *argv[])
/* add a button to do something usefull */
button = gtk_button_new_with_label("Fork me!");
gtk_signal_connect(GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC(fork_me), NULL);
g_signal_connect(G_OBJECT (button), "clicked",
G_CALLBACK(fork_me), NULL);
gtk_container_add(GTK_CONTAINER(window), button);
......@@ -1663,7 +1665,7 @@ int main(int argc, char *argv[])
<sect1>
<title>Why don't the contents of a button move when the button
is pressed? Here's a patch to make it work that way...</title>
is pressed? Here's a patch to make it work that way... <emphasis>[GTK 2.x]</emphasis></title>
<para>From: Peter Mattis</para>
......@@ -1689,12 +1691,12 @@ and determined it didn't look good and removed it.</quote></para>
<sect1>
<title>How do I identifiy a widgets top level window or other
ancestor?</title>
ancestor? <emphasis>[GTK 2.x]</emphasis></title>
<para>There are a couple of ways to find the top level parent
of a widget. The easier way is to call the
of a widget. The easiest way is to call the
<literal>gtk_widget_get_toplevel()</literal> function that
returns pointer to a GtkWidget that is the top level
returns a pointer to a GtkWidget that is the top level
window.</para>
<para>A more complicated way to do this (but less limited, as
......@@ -1718,12 +1720,16 @@ widget (entry, label, etc. To find the master hbox using the
hbox = gtk_widget_get_ancestor(w, GTK_TYPE_HBOX);
</programlisting>
<para>You can also follow the a widgets ancestry by using the function
<literal>gtk_widget_get_parent()</literal> that returns a pointer
to a widgets parent widget.</para>
</sect1>
<!-- ----------------------------------------------------------------- -->
<sect1>
<title>How do I get the Window ID of a GtkWindow?</title>
<title>How do I get the Window ID of a GtkWindow? <emphasis>[GTK 2.x]</emphasis></title>
<para>The actual Gdk/X window will be created when the widget
gets realized. You can get the Window ID with:</para>
......@@ -1738,8 +1744,7 @@ Window xwin = GDK_WINDOW_XWINDOW (GTK_WIDGET (my_window)->window);
<!-- ----------------------------------------------------------------- -->
<sect1>
<title>How do I catch a double click event (in a list widget,
for example)?</title>
<title>How do I catch a double click event? <emphasis>[GTK 2.x]</emphasis></title>
<para>Tim Janik wrote to gtk-list (slightly modified):</para>
......@@ -1749,10 +1754,10 @@ for example)?</title>
gint
signal_handler_event(GtkWidget *widget, GdkEventButton *event, gpointer func_data)
{
if (GTK_IS_LIST_ITEM(widget) &&
if (GTK_IS_BUTTON(widget) &&
(event->type==GDK_2BUTTON_PRESS ||
event->type==GDK_3BUTTON_PRESS) ) {
printf("I feel %s clicked on button %d\n",
printf("I feel %s clicked with button %d\n",
event->type==GDK_2BUTTON_PRESS ? "double" : "triple",
event->button);
}
......@@ -1764,18 +1769,18 @@ signal_handler_event(GtkWidget *widget, GdkEventButton *event, gpointer func_dat
<programlisting role="C">
{
/* list, list item init stuff */
/* button init stuff */
gtk_signal_connect(GTK_OBJECT(list_item),
g_signal_connect(G_OBJECT(button),
"button_press_event",
GTK_SIGNAL_FUNC(signal_handler_event),
G_CALLBACK(signal_handler_event),
NULL);
/* and/or */
gtk_signal_connect(GTK_OBJECT(list_item),
g_signal_connect(G_OBJECT(button),
"button_release_event",
GTK_SIGNAL_FUNC(signal_handler_event),
G_CALLBACK(signal_handler_event),
NULL);
/* something else */
......
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