PRB: VBCE: Deactivate Event Fires when Second Form is Closed

• Microsoft Windows CE Toolkit for Visual Basic 6.0

SYMPTOMS

After closing a form that has been shown on top of another form, the Deactivate event of the form that is being closed fires. This occurs only when the application is run on the remote device.

RESOLUTION

To work around this behavior, a form level variable can be used to determine when the event should fire. The following example sets the form level variable in the QueryUnload event so that the Deactivate event does not fire:

Dim FireDeactivateEvent

Private Sub Form_Deactivate()
    If FireDeactivateEvent Then
        MsgBox "Deactivate"
    End If
End Sub

Private Sub Form_Load()
    FireDeactivateEvent = True
End Sub

Private Sub Form_QueryUnload(Cancel As Integer, UnloadMode As Integer)
    FireDeactivateEvent = False
End Sub 

MORE INFORMATION

This behavior only occurs in the Windows CE Platform and only on the remote device.

Steps to Reproduce Behavior

1. Start a new Windows CE Project in Visual Basic. Form1 is created by default.



2. Add the following code behind Form1:




Private Sub Form_Click()
    Form2.Show
End Sub 

3. Add a second form to the project.



4. Add the following code behind Form2:




Private Sub Form_Deactivate()
    MsgBox "Deactivate"
End Sub 

5. Press the F5 key to run the program.



6. Click on Form1 and note that Form2 appears.



7. Close Form2 and note that the message box appears after Form2 is closed.

Additional query words: wce vbce vbce6

Keywords : kbToolkit kbVBp600 kbWinCE100 kbGrpVB kbDSupport
Version : WINDOWS:
Platform : WINDOWS
Issue type : kbprb