UnShow

Removes the window subclass installed by Show.

Syntax: object.UnShow

object
required An object expression that evaluates to a cListboxHScroll instance.

UnShow calls RemoveWindowSubclass (comctl32) to detach the scroll message handler that was installed by Show. After this call, the ListBox control associated with the instance no longer receives the subclassed WM_HSCROLL processing added by the class.

Note

UnShow does not hide the horizontal scrollbar itself, and does not reset the horizontal extent or release the ListBox reference—it removes only the subclass procedure. Call ShowScrollBar directly with SB_HORZ and 0 if the scrollbar must also be hidden.

Important

The class destructor (Class_Terminate) calls the internal RemoveListBoxSubclass helper automatically, so UnShow need only be called explicitly when the subclass must be removed before the cListboxHScroll instance goes out of scope.

Example

This example adds a horizontal scrollbar to a ListBox on a form, then removes it when a button is clicked.

Private HScroll As cListboxHScroll

Private Sub Form_Load()
    Set HScroll = New cListboxHScroll
    HScroll.Show List1
End Sub

Private Sub cmdRemove_Click()
    HScroll.UnShow
End Sub

See Also