Re: setting the wait mouse cursor during a longer load operation

[M Santhoff t-online de (Marc Santhoff)]

Am Sa, den 25.09.2004 schrieb Stefan Kost um 01:32:
> Hi all,

Hi Stefan,

> Stefan Kost wrote:
> > hi,
> >
> > when loading a long file I would like to disabled events for the main-window and
> > set a wait mouse-coursor for it. That they way I've tried it.
> >
> > GdkWindow *window;
> > GdkCursor *cursor=gdk_cursor_new(GDK_WATCH);
> >
> > gtk_widget_set_sensitive(GTK_WIDGET(self->private->main_window),FALSE);
> > // does not work -> (gdk_window_set_cursor): assertion `window != NULL' failed
> > window=gtk_window_get_transient_for(GTK_WINDOW(self->private->main_window));
> I've now also tries
> window=gtk_window_get_parent_window(GTK_WIDGET(self->private->main_window))
> window=gtk_window_get_root_window(GTK_WIDGET(self->private->main_window))
> window=GTK_WIDGET(self->private->main_window)->window;
>
> I don't like to directly access the widget field. I've just tried whatever I
> found in other sources. Still no method works.
> The result is either
> a) setting the cursor for all windows but mine (e.g. all other window titles, or
> the gnome pannel then have the wait-mouse cursor)
> b) getting a core dump
>
> > gdk_window_set_cursor(window,cursor);
> > ... invoke the loading
> > gdk_window_set_cursor(window,NULL);
> > gtk_widget_set_sensitive(GTK_WIDGET(self->private->main_window),TRUE);
> >
> > I manage to change the cursor for other windows (that are not mine!).
> > Hwen I got diffenrent mouse-cursors, then they neverr looked like the requested
> > ones.
> >
> > Any ideas?

At first I've got to say: I have not much knowledge about GTK2, I'm
using 1.2 and did it this way (in Pascal, but you will get the idea):

        ...
        cursor := gdk_cursor_new_from_pixmap (source, mask, @fg, @bg, 8, 8);
        gdk_pixmap_unref (source);
        gdk_pixmap_unref (mask);
        ...
        window := TMainForm.create(stm);
        ...
        window.show;

        { set the cursor when the window is shown, won't work otherwise }
        gdk_window_set_cursor (window, cursor);

        gtk_main ();
        
This works fine as long as there are no entries or other widgets
involved, that set their own cursor. I did nothing about that, but maybe
this would be solvable by defining classes in the rc file ...

HTH,
Marc