Test to see if document has changed

[CAD-e-Shack]

Is there a test I can do to a drawing to see if it has been modified since opening?

The code I've written needs to be able to differentiate so as to minimize user input. I can make it work one way or the other,but I need some sort of marker that I can insert into an if statement to determine whether to simulate user input for changes made, or exit with no changes.

[saseendrankombath]

Try adding ModelGeometryVersion to an attribute and compare the ModelGeometryVersion for changes.

[CAD-e-Shack]

I may need to be treated like a vba rookie here.

I was hoping to find something like what Excel has where I can test if "Activeworkbook.saved = true" which means there have been no changes since the last save.

I tried setting up attributes, but I really have little undestading what they reference to and how they work.

[saseendrankombath · Accepted solution]

ModelGeometryVersion can used to track the changes made to the referenced part of the drawing. If you want to check the drawing only  try the below code.

Public Sub Drawing_Change()
    Dim oDoc As DrawingDocument
    Set oDoc = ThisApplication.ActiveDocument
   
    If oDoc.Dirty = True Then
        MsgBox ("Changes Have been made")
    Else
        MsgBox ("No changes made")
    End If
End Sub

 this will show if any changes made after the last save.

[CAD-e-Shack]

OK, I see how it works. I was looking to compare it to the checked-out file. If there were no changes since check-out then a save & check-in would be required.

As is, if there have been saved changes since check-out the system reads the file as not having changed at all.

[rupali.bhosale]

How to check wheher the drawing Drawing document has been modified or not? 

ModelGeometryVersion is not the part of drawing document.