How can I retrieve $PRP:"SW-Current Sheet" with VBA?

Hi,

 

I am writing a macro having to do with the sheet numbers, and I need to retrieve the value of the current sheet number. It is stored in Solidworks as \\\$PRP:"SW-Current Sheet", but I am having trouble calling this value in the macro. This value is used for the text field "Sheet 1 of 20", with 1 being the current sheet value.

My code only delivers an empty string

 

Sub ShowCurrentSheetNumber()
   ' Declare variables
   Dim swApp As SldWorks.SldWorks
   Dim swModel As SldWorks.ModelDoc2
   Dim swDrawing As SldWorks.DrawingDoc
   Dim customPropertyMgr As SldWorks.CustomPropertyManager
   Dim currentSheetValue As String
   Dim valout As String
   Dim bool As Boolean
   
   ' Initialize SolidWorks application
   Set swApp = Application.SldWorks
   Set swModel = swApp.ActiveDoc
   
   ' Ensure the document is a drawing
   If swModel Is Nothing Or swModel.GetType() <> swDocDRAWING Then
       MsgBox "This macro must be run in a drawing document.", vbExclamation
       Exit Sub
   End If
   
   ' Get the drawing document
   Set swDrawing = swModel
   
   ' Get the custom properties manager for the drawing document
   Set customPropertyMgr = swDrawing.Extension.CustomPropertyManager("")
   
   ' Retrieve the evaluated value of "SW-Current Sheet"
   bool = customPropertyMgr.Get4("SW-Current Sheet", False, currentSheetValue, valout)
   
   ' Display the value if found
   If bool Then
       MsgBox "Current Sheet Number: " & valout, vbInformation
   Else
       MsgBox "Property 'SW-Current Sheet' not found.", vbExclamation
   End If
End Sub