>Hi all:> I'm using the Gtkimage and GdkPixbuf to show picture and each time I run the program I get the following error:>>GLib-Gobject-CRITICAL ** : g_object_unref : assertion `G_IS_OBJECT(object)` failed>>I'm running GTK 2.6.4 and Glib 2.6.4 on a Debian woody.Here is the code which reproduces the problem:>>#include
>
> int main( int argc,
> char *argv[] )
> {
> GtkWidget *window;
> GtkWidget *image;
> GdkPixbuf *pix1;GdkPixbuf *pix2;
> gtk_init(&argc, &argv);
>
> window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
> image = gtk_image_new_from_file ("1.png");
>
> gtk_container_set_border_width (GTK_CONTAINER (window), 10);
> gtk_container_add (GTK_CONTAINER (window), image);
>
> pix1=gtk_image_get_pixbuf(GTK_IMAGE(image));pix2=gdk_pixbuf_scale_simple(pix1,320,160,GDK_INTERP_BILINEAR);gtk_image_set_from_pixbuf(GTK_IMAGE(image),pix2);g_object_unref(pix1);g_object_unref(pix2);gtk_widget_show (image);
> gtk_widget_show (window);
>
> gtk_main ();
>
> return(0);
> }
>>I have no idea how to resolve the problem.Any help will be most appreciated.Thanks.Hi,
The code load a file, set it on the image control, the get its pixbuf from image, create a second rescaled pixbuf, then set it on image.
I suggest you create the pixbuf from file at desired scale, set it on image and unref :
#include <gtk/gtk.h>
int main (int argc, char **argv)
{GtkWidget *window;
GtkWidget *image;
GdkPixbuf *pix1;gtk_init(&argc, &argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_container_set_border_width (GTK_CONTAINER (window), 10);
g_signal_connect(G_OBJECT(window),"destroy",G_CALLBACK(gtk_main_quit),NULL);pix1 = gdk_pixbuf_new_from_file_at_scale ("1.png",320,160, FALSE, NULL);
image =gtk_image_new_from_pixbuf (pix1);
gtk_container_add (GTK_CONTAINER (window), image);
g_object_unref(pix1);
gtk_widget_show_all (window);
gtk_main();
return(0);
}Same result, no errors, less code, less memory.
Regards,
Katsankat
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