GtkOffscreenWindow
A toplevel container widget used to manage offscreen rendering of child widgets.
gtkOffscreenWindowNew(show = TRUE)gtkOffscreenWindowGetPixmap(object)gtkOffscreenWindowGetPixbuf(object)gtkOffscreenWindow(show = TRUE)
GObject
+----GInitiallyUnowned
+----GtkObject
+----GtkWidget
+----GtkContainer
+----GtkBin
+----GtkWindow
+----GtkOffscreenWindowGtkOffscreenWindow implements
AtkImplementorIface and GtkBuildable.
GtkOffscreenWindow is strictly intended to be used for obtaining
snapshots of widgets that are not part of a normal widget hierarchy.
It differs from gtkWidgetGetSnapshot in that the widget you
want to get a snapshot of need not be displayed on the user's screen
as a part of a widget hierarchy. However, since GtkOffscreenWindow
is a toplevel widget you cannot obtain snapshots of a full window
with it since you cannot pack a toplevel widget in another toplevel.
The idea is to take a widget and manually set the state of it,
add it to a GtkOffscreenWindow and then retrieve the snapshot
as a GdkPixmap or GdkPixbuf.
GtkOffscreenWindow derives from GtkWindow only as an implementation
detail. Applications should not use any API specific to GtkWindow
to operate on this object. It should be treated as a GtkBin that
has no parent widget.
When contained offscreen widgets are redrawn, GtkOffscreenWindow
will emit a "damage-event" signal.
GtkOffscreenWindowundocumented
gtkOffscreenWindow is the equivalent of gtkOffscreenWindowNew.
Derived by RGtkGen from GTK+ documentation
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