XRefLayerVisibility Example [ActiveX and VBA Reference: AAR]

XRefLayerVisibility Example

Sub Example_XRefLayerVisibility()
    ' This example reads and modifies the preference value which controls
    ' the visibility of xref-dependent layers and specifies if nested xref
    ' path changes are saved.
    '
    ' When finished, this example resets the preference value back to
    ' it's original value.
    
    Dim ACADPref As AcadDatabasePreferences
    Dim originalValue As Variant, newValue As Variant
    
    ' Get the user preferences object
    Set ACADPref = ThisDrawing.preferences
    
    ' Read and display the original value
    originalValue = ACADPref.XRefLayerVisibility
    MsgBox "The XRefLayerVisibility preference is set to: " & originalValue

    ' Modify the XRefLayerVisibility preference by toggling the value
    ACADPref.XRefLayerVisibility = Not (ACADPref.XRefLayerVisibility)
    newValue = ACADPref.XRefLayerVisibility
    MsgBox "The XRefLayerVisibility preference has been set to: " & newValue

    ' Reset the preference back to it's original value
    '
    ' * Note: Comment out this last section to leave the change to
    '         this preference in effect
    ACADPref.XRefLayerVisibility = originalValue
    MsgBox "The XRefLayerVisibility preference was reset back to: " & originalValue
End Sub