Cancel = True is not working in Workbook_BeforeClose - excel

Question

This clearly shows that value of cancel is true, and still my workbook closes after this! Why?
I want to cancel closing of the excel file if user input is incorrect.
I debug the code and found out that the value of Cancel was initially False, and it becomes True. But once the Sub ends, file is still closed.
(variable error is defined at workbook declaration space, so accessible within module.)
Private Sub Workbook_BeforeClose(Cancel As Boolean)
error = 0
check_for_error
If error = 1 Then
Cancel = True
Exit Sub
End If
Application.EnableEvents = False
Sheet1.Cells.ClearContents
Sheet2.Cells.Clear
Application.EnableEvents = True
End Sub
I want to cancel closing of file if error = 1.
Update:: Thanks everyone for the responses, but nothing seems to work for me! Following is how my current code looks.
Option Explicit
Dim errYes As Byte
Private Sub Workbook_BeforeClose(Cancel As Boolean)
check_freeze_panel
If errYes = 1 Then
Cancel = True
Exit Sub
End If
Application.DisplayAlerts = False
ThisWorkbook.Save
Application.DisplayAlerts = True
End Sub
errYes is returning 1, Cancel = True is being executed, and still my workbook closes.
I even tried commenting all the code, and just putting Cancel = True as suggested and guess what, it still closes!

Answer 1

Change the name of error this is a reserved word for an already existing function (see Error function) and must not be used as a variable name. And activate Option Explicit and declare all your variables.
Here is an example how you would do it correctly:
Option Explicit
Private Sub Workbook_BeforeClose(Cancel As Boolean)
Dim ErrorsFound As Boolean
ErrorsFound = check_for_error
If ErrorsFound Then
Cancel = True
Exit Sub
End If
Application.EnableEvents = False
Sheet1.Cells.ClearContents
Sheet2.Cells.Clear
Application.EnableEvents = True
End Sub
Function check_for_error() As Boolean
'check and return
check_for_error = True 'errors found
End Function
Or even shorter:
Option Explicit
Private Sub Workbook_BeforeClose(Cancel As Boolean)
Cancel = check_for_error
If Not Cancel Then
Application.EnableEvents = False
Sheet1.Cells.ClearContents
Sheet2.Cells.Clear
Application.EnableEvents = True
End If
End Sub
Function check_for_error() As Boolean
'check and return
check_for_error = True 'errors found
End Function

Answer 2

Try this. Set Error equal to your function call and make sure it returns the right data type.
Private Sub Workbook_BeforeClose(Cancel As Boolean)
error = check_for_error
If error = 1 Then
Cancel = True
Exit Sub
End If
Application.EnableEvents = False
Sheet1.Cells.ClearContents
Sheet2.Cells.Clear
Application.EnableEvents = True
End Sub

Answer 3

Initially Cancel is equal False, means File Close will succeed.
For me the below code works fine. When I set error = 1 then closing is cancelled whether you use "Exit Sub" or not. When I set error <> 1 then cls
When I test your Code:
Option Explicit
Private Sub Workbook_BeforeClose(Cancel As Boolean)
Dim error As Integer
error = 1
If error = 1 Then
Cancel = True
'Exit Sub
End If
End Sub
Just test this:
Write False and workbook should Close, and True should "stop" the closing.
Private Sub Workbook_BeforeClose(Cancel As Boolean)
Cancel = False
End Sub