InvisibleApp.IsInScope property (Visio)

Determines whether a call to an event handler is between an EnterScope event and an ExitScope event for a scope. Read-only.

Syntax

expression.IsInScope (nCmdID)

expression A variable that represents an InvisibleApp object.

Parameters

Name	Required/Optional	Data type	Description
nCmdID	Required	Long	The scope ID.

Return value

Boolean

Remarks

Constants representing scope IDs are prefixed with visCmd and are declared by the Visio type library. You can also use an ID returned by the BeginUndoScope method.

You could use this property in a CellChanged event handler to determine whether a cell change was the result of a particular operation.

Example

This example shows how to use the IsInScope property to determine whether a call to a procedure that handles the CellChanged event is in a particular scope; that is, whether the call occurs between the EnterScope and ExitScope events for that scope.

 
Private WithEvents vsoApplication As Visio.Application 
Private lngScopeID As Long 
 
Public Sub IsInScope_Example() 
 
 Dim vsoShape As Visio.Shape 
 
 'Set the module-level application variable to 
 'trap application-level events. 
 Set vsoApplication = Application 
 
 'Begin a scope. 
 lngScopeID = Application.BeginUndoScope("Draw Shapes") 
 
 'Draw three shapes. 
 Set vsoShape = ActivePage.DrawRectangle(1, 2, 2, 1) 
 ActivePage.DrawOval 3, 4, 4, 3 
 ActivePage.DrawLine 4, 5, 5, 4 
 
 'Change a cell (to trigger the CellChanged event). 
 vsoShape.Cells("Width").Formula = 5 
 
 'End and commit this scope. 
 Application.EndUndoScope lngScopeID, True 
 
End Sub 
 
Private Sub vsoApplication_CellChanged(ByVal Cell As IVCell) 
 
 'Check to see if this cell change is the result of something 
 'happening within the scope. 
 If vsoApplication.IsInScope(lngScopeID) Then 
 Debug.Print Cell.Name & " changed in scope "; lngScopeID 
 End If 
 
End Sub 
 
Private Sub vsoApplication_EnterScope(ByVal app As IVApplication, _ 
 ByVal nScopeID As Long, _ 
 ByVal bstrDescription As String) 
 
 If vsoApplication.CurrentScope = lngScopeID Then 
 Debug.Print "Entering my scope " & nScopeID 
 Else 
 Debug.Print "Enter Scope " & bstrDescription & "(" & nScopeID & ")" 
 End If 
 
End Sub 
 
Private Sub vsoApplication_ExitScope(ByVal app As IVApplication, _ 
 ByVal nScopeID As Long, _ 
 ByVal bstrDescription As String, _ 
 ByVal bErrOrCancelled As Boolean) 
 
 If vsoApplication.CurrentScope = lngScopeID Then 
 Debug.Print "Exiting my scope " & nScopeID 
 Else 
 Debug.Print "ExitScope " & bstrDescription & "(" & nScopeID & ")" 
 End If 
 
End Sub

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