GTK implementation of MessageBox

I have been trying to implement Win32's `MessageBox` using GTK. The app using SDL/OpenGL, so this isn't a GTK app. I handle the initialization (`gtk_init`) sort of stuff inside the `MessageBox` function as follows: int MessageBox(HWND hwnd, const char* text, const char* caption, UINT type) { GtkWidget *window = NULL; GtkWidget *dialog = NULL; gtk_init(>kArgc, >kArgv); window = gtk_window_new(GTK_WINDOW_TOPLEVEL); g_signal_connect(G_OBJECT(window), "delete_event", G_CALLBACK(delete_event), NULL); g_signal_connect(G_OBJECT(window), "destroy", G_CALLBACK(destroy), NULL); // gcallback calls gtk_main_quit() gtk_init_add((GtkFunction)gcallback, NULL); if (type & MB_YESNO) { dialog = gtk_message_dialog_new(GTK_WINDOW(window), GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_QUESTION, GTK_BUTTONS_YES_NO, text); } else { dialog = gtk_message_dialog_new(GTK_WINDOW(window), GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_INFO, GTK_BUTTONS_OK, text); } gtk_window_set_title(GTK_WINDOW(dialog), caption); gint result = gtk_dialog_run(GTK_DIALOG(dialog)); gtk_main(); gtk_widget_destroy(dialog); if (type & MB_YESNO) { switch (result) { default: case GTK_RESPONSE_DELETE_EVENT: case GTK_RESPONSE_NO: return IDNO; break; case GTK_RESPONSE_YES: return IDYES; break; } } return IDOK; } Now, I am by no means an experienced GTK programmer, and I realize that I'm probably doing something horribly wrong. However, my problem is that the last dialog popped up with this function stays around until the process exits. Any ideas?

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