Prevent closing of a form
vb6
Solution
Handle this in the Form's QueryUnload event. There's an UnloadMode parameter and a Cancel Parameter:
Private Sub Form_QueryUnload(Cancel As Integer, UnloadMode As Integer)
If UnloadMode = vbFormControlMenu Then Cancel = True
End Sub
For more info on the QueryUnload event, see the MSDN VB6 Language Reference or check out this article.
Problem
How can i avoid closing a form if by mistake cross is clicked