BUG: DateTimePicker Overrides ALT+F4 Key Combination (189616)


The information in this article applies to:

  • Microsoft Visual Basic Learning Edition for Windows 6.0
  • Microsoft Visual Basic Professional Edition for Windows 6.0
  • Microsoft Visual Basic Enterprise Edition for Windows 6.0
This article was previously published under Q189616

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.
Modification Type:MajorLast Reviewed:5/13/2003
Keywords:kbbug KB189616
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