In this program the window appears at the 4th gtk_main_iteration_do(FALSE);
At iteration 50 I clicked the little x icon to close the window.
/*
compilation:
$ a=./c && gcc $a.c $( pkg-config --cflags gtk+-3.0 ) $( pkg-config --libs
gtk+-3.0 ) -o $a && $a
*/
#include<gtk/gtk.h>
int main(int ac,char**av) {
GtkWidget*w;
gtk_init(&ac,&av);
w = gtk_window_new(GTK_WINDOW_TOPLEVEL);
g_signal_connect(w,"destroy",G_CALLBACK(gtk_main_quit),NULL);
gtk_widget_set_size_request(w,100,100);
gtk_widget_show(w);
if (!TRUE)
gtk_main();
else {
int i;
for (i = 1; ; ++i) {
printf("%4d ",i);
fflush(stdout);
gtk_main_iteration_do(FALSE);
sleep(2);
}
}
return 0;
}
OUTPUT from this program (run with emacs compile command):
-*- mode: compilation; default-directory: "/tmp/" -*-
Compilation started at Fri Nov 16 11:17:07
a=./c && gcc $a.c $( pkg-config --cflags gtk+-3.0 ) $( pkg-config --libs
gtk+-3.0 ) -o $a && $a
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
17 18
(c:13232): Gdk-CRITICAL **: gdk_error_trap_pop_internal: assertion `trap !=
NULL' failed
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
(c:13232): Gtk-CRITICAL **: gtk_main_quit: assertion `main_loops != NULL' failed
51 52 /bin/bash: line 1: 13232 Killed $a
Compilation exited abnormally with code 137 at Fri Nov 16 11:18:51
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https://bugs.launchpad.net/bugs/1061554
Title:
assertion failure `trap != NULL' displayed by all GTK3 software
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