Line Numbers In VBA Macro Code

If I number my lines of code and an error occurs, the use of Erl in the VBA will then return the exact VBA line number that the error occurred on. Is it possible to automatically capture or record that same effect when the macro process leaves its current sub and goes to another?

Reason: I'm trying to create a Call Stack that can be reported through an Error Handler that will include the exact location and process that the error occurred to better troubleshoot and understand where and why the error occurred.

The best I can come up with so far is manually putting in bookmarks along way so I know how far along the macro went before the error. From all of my searching I believe retrieving the Excel Call Stack is not possible and so one must be manually created.

Enclosed is an example of what I have so far. It goes through several macros and logs the Call Stack. It’s a work in progress so it is a little sloppy looking but it is functional. If a Sub finishes it is then taken out of the Call stack.

Several "BookMarks" are placed to give an idea of how far along the Macro has gone within that Sub. The Code for the Erl example is:


Sub SampleErrorWithLineNumbers()
Dim dblNum As Double
10 On Error Goto PROC_ERR

' Errors if table doesn't exist
20 Select Case Rnd()
Case Is < 0.2
30 dblNum = 5 / 0
40 Case Is < 0.4
50 dblNum = 5 / 0
60 Case Is < 0.6
70 dblNum = 5 / 0
80 Case Is < 0.8
90 dblNum = 5 / 0
100 Case Else
End Select
110 Exit Sub

PROC_ERR:
120 MsgBox "Error Line: " & Erl & vbCrLf & vbCrLf & _
"Error: (" & Err.Number & ") " & Err.Description, vbCritical
End Sub