VBA to check condition on save and do something if a condition isn't met

Hi

I am working on some code to make sure that certain columns are hidden and password protected when a user saves a file and have got this far but got stuck - can anyone help me with the part I'm missing please?

Private Sub Workbook_BeforeSave(ByVal SaveAsUI As Boolean, Cancel As Boolean)
Sheets("Headcount").Select

if.Columns("C").Hidden.. - this is the line I can't get to work - I want it to determine if Column C is already hidden then just save but if not then the column should be hidden and the sheet should be locked with the password in the section below?

Columns("C:E").Select
Selection.EntireColumn.Hidden = True
Range("A1").Select


ActiveSheet.Protect Password:="password"
End Sub

Have you tried

If Columns("C").Hidden = True Then

Alf