Thanks for all your answers. I appreciate. Unfortunately, so far, I didn't get anything working:
- I was thinking of gdk_pixbuf_xlib_get_from_drawable but same story: "If the specified drawable is a window, then it must be viewable, i.e. all of its ancestors up to the root window must be mapped." - I tried XGetImage: XImage * x; x = XGetImage(GDK_DISPLAY(), netk_window_get_xid(window), 0, 0, width, height, AllPlanes, ZPixmap); pixbuf = gdk_pixbuf_new_from_data(x->data, GDK_COLORSPACE_RGB, False, 8, width, height, x->bytes_per_line, NULL, NULL); but I receive an xserver error "The error was 'BadMatch (invalid parameter attributes)'." when the window is partially hidden or minimized. Note that it's working when the window is fully visible. - So, at this point, I consider more patching/hacking the window/compositing manager xfwm4 to add a screenshot when the window is about to be umapped. Patching something like "no more unmap" seems overkill for what I want to achieve. Let me know if you have any other comment or idea, Grégoire On Mon, 2008-12-08 at 12:17 -0500, Gregoire Gentil wrote: > Hello, > > I would like to get the raw data of the Picture structure in Xrender. > Basically, I would like to import into a GdkPixbuf, a picture returned > by XRenderCreatePicture. There doesn't seem to be any data export > function in Xrender. Any pointer how I could achieve this? > > Grégoire > > PS: What do I need to do that? Because I want to preview in a gtk+ > application the content of a window that is minimized (like Compiz or > Vista can do). gdk_pixbuf_get_from_drawable returns garbage with a > minimized windows and I think that xrender will return at least the > outdated content of the window. My windows and compositing manager is > xfwm4 which doesn't support this feature. I'm then trying to shortcut > xfwm4 and get what I want directly from Xrender. > > _______________________________________________ xorg mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/xorg
