Re: Which signal is emitted when the arrow in GtkComboBoxEntry() is pressed?
- From: Jan-Marek Glogowski <glogow fbihome de>
- To: Egon Andersen <post talura dk>
- Cc: gtk-list <gtk-list gnome org>
- Subject: Re: Which signal is emitted when the arrow in GtkComboBoxEntry() is pressed?
- Date: Sun, 21 Nov 2004 15:09:45 +0100 (CET)
Just checked the source for 2.4.13 and 2.5.5. Both use a
GtkToggleButton...
Check the following "scan" function - should print a list of found object
types:
static void scan_children( GtkWidget *w, gpointer data )
{
g_print( "%s\n", G_OBJECT_TYPE_NAME( w ) );
}
For me it finds:
GtkToggleButton
GtkEntry
About GTK_IS_... macro:
There are six std macros defined by every Gtk+ "class". They are used for:
2* type checks (GTK_IS_...[_CLASS])
2* obj casts (GTK_...[_CLASS]), e.g. GTK_BIN( my_combo )->child
1* the type system internal type (GTK_TYPE_...)
1* get the objs class (GTK_..._GET_CLASS)
E.g. if you look into the code, you will find a lot of
g_return_if_fail( GTK_IS_...( combo ) );
For more information read the Gtk+ tutorial and
http://www.le-hacker.org/papers/gobject/
And be sure you use gtk_container_forall not gtk_container_foreach!
Jan-Marek
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