What event fires when...

What event fires when mouse moves over X to close the form.

I guess X is part of the form because I tried using on MouseLeave but it didn't work.

Background:

I have few text boxes on a form to accept user input. I also have a button "Default Values" to populate these text boxes if the user chooses to use it.

Because the text boxes have Validated events and doesn't allow blank entries, I have:

    Private Sub butDefaultValues_MouseEnter(ByVal sender As Object, ByVal e As System.EventArgs) Handles butDefaultValues.MouseEnter

        'to pacify _Validated to use "Default Values" button
        bolUsingDefault = True

    End Sub

 Private Sub butDefaultValues_MouseLeave(ByVal sender As Object, ByVal e As System.EventArgs) Handles butDefaultValues.MouseLeave

        'to keep _Validated active on leaving butDefaultValues
        bolUsingDefault = False

    End Sub

This means, as soon as the mouse enters "Default Values" button, the flag bolUsingDefault is set True thus using:

Private Sub txtVinNumber_Validated(ByVal sender As Object, ByVal e As System.EventArgs) Handles txtVinNumber.Validated

        If bolUsingDefault = True Then Exit Sub
.
.

is bypassed.

Question is how I can implement a similar technique when the user moves the mouse to close the form without _Validated event firing.

Thank you.
LVL 34
Mike EghtebasDatabase and Application DeveloperAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Mike TomlinsonMiddle School Assistant TeacherCommented:
You can do:
Public Class Form1
 
    Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
        Const SC_CLOSE As Integer = &HF060&
        Const WM_SYSCOMMAND As Integer = &H112
 
        Select Case m.Msg
            Case WM_SYSCOMMAND
                Select Case m.WParam.ToInt32
                    Case SC_CLOSE
                        bolUsingDefault = True
 
                End Select
 
        End Select
 
        MyBase.WndProc(m)
    End Sub

End Class

Open in new window

0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Mike EghtebasDatabase and Application DeveloperAuthor Commented:
Thank you
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Visual Basic.NET

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.