g_signal_emit()
- From: dhk <dhkuhl optonline net>
- To: gtk-app-devel-list gnome org
- Subject: g_signal_emit()
- Date: Sat, 30 Aug 2008 16:27:11 +0000
I have two callback functions. The first for when a cell in a treeview
gets edited and the second for when the tab key is pressed. The first
works fine. In the second, I want to emit the "edited" signal so it
acts as if the first event happened. However, the g_signal_emit() in
the "key-press-event" callback does not seem to work.
I am doing the following and the renderer and sig_id are valid.
sig_id=g_signal_lookup("edited", G_OBJECT_TYPE(renderer));
g_signal_emit(renderer, sig_id, 0);
When I get to the g_signal_emit() call I get the following error.
g_signal_emit(renderer, sig_id, 0);
Program received signal SIGSEGV, Segmentation fault.
0x00007f712d797ad0 in strlen () from /lib/libc.so.6
The backtrace from gdb is:
#0 0x00007f712d797ad0 in strlen () from /lib/libc.so.6
#1 0x00007f712ddfbd03 in g_strdup () from /usr/lib/libglib-2.0.so.0
#2 0x00007f712e4b7dc8 in ?? () from /usr/lib/libgobject-2.0.so.0
#3 0x00007f712e4a4897 in g_signal_emit_valist ()
from /usr/lib/libgobject-2.0.so.0
#4 0x00007f712e4a4db3 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
If I use g_signal_emit_by_name() I get the following error in gdb.
g_signal_emit_by_name(G_OBJECT(renderer), "edited::cellEditedCb");
or
g_signal_emit_by_name(G_OBJECT(renderer), "edited::0");
WARNING gsignal.c:2140: signal id `193' does not support detail (1256)
All I'm trying to do is have the "key-press-event" act like the "edited"
event when the tab key is pressed.
How can this be done?
Thanks,
dave
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