Re: Question in using gdk_pixbuf_get_from_drawable()

["ying lcs" <yinglcs gmail com>]

Yes, I am really accessing a GDK window.

  pb = gdk_pixbuf_get_from_drawable(NULL,
                                        GDK_DRAWABLE(window),


Any other idea?

Thanks.

On Sun, Mar 23, 2008 at 11:34 AM, Luis Menina <liberforce freeside fr> wrote:
> Are you really sure you're accessing the GdkWindow and not the GtkWindow ?
>
>  GtkWindow *toplevel = gtk_window_new(GTK_WINDOW_TOPLEVEL);
>
>  [add some graphical stuff in that GtkWindow]
>
>  /* and then, later on... */
>  GdkWindow *window = toplevel->window;
>
>
>  if (window != NULL)
>  {
>      int x, y, width, height, depth;
>      GdkPixbuf *pb;
>
>
>      gdk_window_get_geometry (window, &x, &y, &width, &height, &depth);
>
>      pb = gdk_pixbuf_get_from_drawable(NULL,
>                                        GDK_DRAWABLE (window),
>                                        NULL, 0, 0, 0, 0, width, height);
>
>      gdk_pixbuf_save(pb, filename, "png", NULL,
>                      "compression", "9",
>                      NULL);
>  }
>
>  ying lcs a écrit :
>
>
> > Luis,
>  >
>  > The 'window' object is from:
>  >
>  >  gtk_window_new(GTK_WINDOW_TOPLEVEL)
>  >
>  > I do see it works something, while other times, I see the screenshot
>  > get out of place (as shown in the image I attached).
>  >
>  > I suspect my window is obscured during the capture.
>  >
>  > So how can I programmatic make sure my window is not obscured before
>  > the catpure?
>  >
>  > I have tried adding:
>  >
>  >  gdk_window_raise(window);
>  >  gdk_flush();
>  >
>  >
>  > But it does not always help.
>  >
>  > Thank you for any more pointers.
>  >
>  >
>  >
>  >
>  > On Thu, Mar 20, 2008 at 7:37 PM, Luis Menina <liberforce freeside fr> wrote:
>  >> Hi,
>  >>
>  >>  where does your "window" object come from ? Could you please give us the
>  >>  code where you initilized it ? I've tried to adapt your code in a simple
>  >>  example, and it just works... I get a screenshot of what is in the
>  >>  window, without the window decoration.
>  >>
>  >>  Cheers,
>  >>
>  >>  Luis
>  >>
>  >>  ying lcs a écrit :
>  >>
>  >>
>  >>> Hi,
>  >>  >
>  >>  > I have a question of using gdk_pixbuf_get_from_drawable(). I have the
>  >>  > following code which save the gdk window to a png file.
>  >>  > But something I get something which is totally not what is displayed
>  >>  > on the window. Can you please tell me what am I missing?
>  >>  >
>  >>  > GdkWindow *window ;
>  >>  >
>  >>  > if (window != NULL) {
>  >>  >
>  >>  >       int x, y, width, height, depth;
>  >>  >
>  >>  >       gdk_window_get_geometry( window, &x, &y, &width, &height, &depth );
>  >>  >
>  >>  >       printf (" width=%d, height=%d\n", width, height);
>  >>  >
>  >>  >       /* copy the pixmap from the treeview and from the title */
>  >>  >       pb = gdk_pixbuf_get_from_drawable(NULL,
>  >>  >                                       GDK_DRAWABLE(window),
>  >>  >                                       NULL, 0, 0, 0, 0, width, height);
>  >>  >
>  >>  >
>  >>  >       /* save the pixbuf to a png file */
>  >>  >       gdk_pixbuf_save(pb, filename, "png", NULL,
>  >>  >                     "compression", "9",
>  >>  >                     NULL);
>  >>  >     }
>  >>  >
>  >>  > Thank you.
>  >>  >
>  >>  >
>  >>  > ------------------------------------------------------------------------
>  >>  >
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>  >>  > gtk-app-devel-list gnome org
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>  >>
>  >