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Q189616: BUG: DateTimePicker Overrides ALT+F4 Key Combination

Article: Q189616
Product(s): Microsoft Visual Basic for Windows
Version(s): 6.0
Operating System(s): 
Keyword(s): kbGrpDSVB
Last Modified: 16-MAY-2001

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The information in this article applies to:

- Microsoft Visual Basic Learning Edition for Windows, version 6.0 
- Microsoft Visual Basic Professional Edition for Windows, version 6.0 
- Microsoft Visual Basic Enterprise Edition for Windows, version 6.0 
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SYMPTOMS
========

When a DateTimePicker (DTPicker) control has focus, the ALT+F4 key combination
does not work. If focus is moved to another control such as a TextBox, the
ALT+F4 keystroke behaves normally.

RESOLUTION
==========

Utilizing either the KeyDown or KeyUp event of the DTPicker control, you can
manually watch for the ALT+F4 keystroke combination and take the appropriate
action, such as closing the application.

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article.

MORE INFORMATION
================

Steps to Reproduce Behavior
---------------------------

1. Create a new Standard EXE project. Form1 is created by default.

2. Choose Components from the Project menu and add a reference to "Microsoft
  Windows Common Controls-2".

3. Add a DTPicker control to Form1.

4. Add a TextBox Control to Form1.

5. Run the sample application.

6. Put focus on the DTPicker control if it doesn't have focus already.

7. Press the ALT+F4 keys. Note that the form does not close.

8. Move focus to the TextBox.

9. Press the ALT+F4 keys. The form closes as expected.

10. To workaround this behavior, paste the following code into Form1's code
  window:

         Private Sub DTPicker1_KeyDown(KeyCode As Integer, Shift As Integer)
            ' Check for Alt and F4 keystrokes
            If (Shift And vbAltMask) And (KeyCode = vbKeyF4) Then
               ' Unload the application
               Unload Me
            End If
         End Sub

11. Repeat steps 5 - 7 and note that the form closes as expected.

Additional query words: kbDSupport kbDSD kbVBp kbVBp600bug kbCtrl

======================================================================
Keywords          : kbGrpDSVB 
Technology        : kbVBSearch kbAudDeveloper kbZNotKeyword6 kbZNotKeyword2 kbVB600Search kbVBA600 kbVB600
Version           : :6.0
Issue type        : kbbug

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