Displays the indicated canvas at the coordinates specified by the canvas‘s X Position and Y Position property settings. Usually Show_View is used to display stacked and tabbed canvas to raises it in front of any other canvas in the same window.
Syntax
SHOW_VIEW (view_id ViewPort);
Specify the view id using Find_View built-in function.
SHOW_VIEW (view_name VARCHAR2);
Specify the view name (stacked or tabbed canvas name)
Example
Begin
Show_View(‘My_Stacked_Canvas‘);
End;
Or by using view id:
Declare
v_id ViewPort;
Begin
v_id := find_view(‘My_Stacked_Canvas‘);
If Not Id_Null(v_Id) then
Show_View(v_id);
End If;
End;
Displaying Tabbed and Stacked Canvas Using Show_View In Oracle Forms
原文：http://www.cnblogs.com/quanweiru/p/6218911.html
