Understanding what response codes come back from MsgBox

Question

I'm very new to programming and I'm just starting to learn VBA with excel. I came across on this website and did the examples here but I have question about this code:

I know the variables are declared using "Dim" statement "Message" here is the variable with a data type of integer. What I don't clearly understand is; what is the meaning of "6" here and "7". I believe they come from somewhere. But as I just started learning this program, I don't have any idea. Could you please tell me how it end up to "6" and "7". I believe there is some basis here

Private Sub CommandButton1_Click()
Dim message As Integer
message = MsgBox("Click Yes to Proceed, No to stop", vbYesNoCancel, "Login")
If message = 6 Then
Range("A1").Value = "You may proceed"
ActiveWorkbook.Activate 
ElseIf message = 7 Then
ActiveWorkbook.Close
End If

End Sub

Thank you for your help:-)

=======

Thanks guys for the answers, they're very helpful. Yes this thread has been already posted in superuser site. I was informed that this question should belong here so I posted it here after reading that they will do it automatically from superuser to stackoverflow.

thanks once again

Answer 1

MsgBox does return an Enum(eration) called MsgBoxResult, which is basically nothing else then numeric values with a 'label'. 6 and 7 in this case are members of this enum, which are mapped to the answers Yes and No.

Using so called 'magic numbers' instead of Constants or Enums should avoided whenever possible.

Basically, you could rewrite the code to this:

Dim message As Integer
message = MsgBox("Click Yes to Proceed, No to stop", vbYesNoCancel, "Login")
If message = MsgBoxResult.Yes Then
    Range("A1").Value = "You may proceed"
    ActiveWorkbook.Activate
ElseIf message = MsgBoxResult.No Then
    ActiveWorkbook.Close
End If

Might be that the Enum is called vbMsgBoxResult or something... I don't have an Office to verify this, just Visual Studio.

While we are on it... this might be easier to understand:

Select Case MsgBox("Click Yes to Proceed, No to stop", vbYesNoCancel, "Login")
    Case MsgBoxResult.Yes
        Range("A1").Value = "You may proceed"
        ActiveWorkbook.Activate

    Case MsgBoxResult.No
        ActiveWorkbook.Close

    Case MsgBoxResult.Cancel
        ' he clicked cancel '

End Select