get_child_position (
  GtkOverlay* self,
  GtkWidget* widget,
  GdkRectangle allocation,
  gpointer user_data

Description [src]

The ::get-child-position signal is emitted to determine the position and size of any overlay child widgets. A handler for this signal should fill allocation with the desired position and size for widget, relative to the ‘main’ child of overlay.

The default handler for this signal uses the widgets halign and valign properties to determine the position and gives the widget its natural size (except that an alignment of GTK_ALIGN_FILL will cause the overlay to be full-width/height). If the main child is a GtkScrolledWindow, the overlays are placed relative to its contents.

Default handler:

The default handler is called after the handlers added via g_signal_connect().



Type: GtkWidget

The child widget to position.

The data is owned by the caller of the function.

Type: GdkRectangle

Return location for the allocation.

The argument will be set by the function.

Return value

Type: gboolean

TRUE if the allocation has been filled.