Hello,
i compiled gtk+2.18.6 for use with directfb on an arm target.
When i run the some gtk "hello world" code i get a segmentation fault in
function ( gtk_widget_show_all(window); )
find_native_sibling_above_helper(GdkWindowObject
*parent,GdkWindowObject *child)
in file gdk/gdkwindow.c line 1123.
The parent argument is 0x0.
It seems that the gtk-application supposes a "instance" above its own
widgets,
witch directfb does not provide.
Can anybody please tell whats going wrong?
Are the version i used together are not compatible?
Is there something in directfb to enable to handle this?
Any Ideas are very welcome,
thank you very much.
This are the versions of the stuff working together with gtk+:
DirectFB-1.4.0.tar.gz
atk-1.25.2.tar.gz
cairo-1.8.6.tar.gz
fontconfig-2.7.0.tar.gz
glib-2.22.4.tar.gz
gtk+-2.18.6.tar.gz
pango-1.26.2.tar.gz
pixman-0.15.16.tar.gz
tslib.tar.gz
liberation-fonts.tar.gz
Regards,
Bastian.
P.S.
This is the testapplication:
#include <cairo.h>
#include <gtk/gtk.h>
#include <time.h>
static char buffer[256];
static gboolean
on_expose_event(GtkWidget *widget,
GdkEventExpose *event,
gpointer data)
{
cairo_t *cr;
cr = gdk_cairo_create(widget->window);
cairo_move_to(cr, 30, 30);
cairo_show_text(cr, buffer);
cairo_destroy(cr);
return FALSE;
}
static gboolean
time_handler(GtkWidget *widget)
{
if (widget->window == NULL) return FALSE;
time_t curtime;
struct tm *loctime;
curtime = time(NULL);
loctime = localtime(&curtime);
strftime(buffer, 256, "%T", loctime);
gtk_widget_queue_draw(widget);
return TRUE;
}
int
main (int argc, char *argv[])
{
GtkWidget *window;
GtkWidget *darea;
gtk_init(&argc, &argv);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
darea = gtk_drawing_area_new();
gtk_container_add(GTK_CONTAINER (window), darea);
g_signal_connect(darea, "expose-event",
G_CALLBACK(on_expose_event), NULL);
g_signal_connect(window, "destroy",
G_CALLBACK(gtk_main_quit), NULL);
gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
gtk_window_set_default_size(GTK_WINDOW(window), 320, 240);
gtk_window_set_title(GTK_WINDOW(window), "timer");
g_timeout_add(1000, (GSourceFunc) time_handler, (gpointer) window);
gtk_widget_show_all(window);
time_handler(window);
gtk_main();
return 0;
}
It`s a tutorial linked on gtk.org
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