
GObject_Record

Gtk_Object_Record


Gtk_Widget_Record



Gtk_Container_Record




Gtk_Bin_Record




Gtk_Handle_Box_RecordWhen reattaching, the ghost and float window, must be aligned along one of the edges, the snap edge. This either can be specified by the application programmer explicitely, or GtkAda will pick a reasonable default based on the handle position.
To make detaching and reattaching the handlebox as minimally confusing as possible to the user, it is important to set the snap edge so that the snap edge does not move when the handlebox is detached. For instance, if the handlebox is packed at the bottom of a Vbox, then when the handlebox is detached, the bottom edge of the handlebox's allocation will remain fixed as the height of the handlebox shrinks, so the snap edge should be set to Pos_Bottom.
If the snap edge is not set, then an appropriate value will be guessed from the handle position. If the handle position is Pos_Right or Pos_Left, then the snap edge will be Pos_Top, otherwise it will be Pos_Left.