FIX: Lost MouseDown Event with Command Button & Check Box

MORE INFORMATION

Steps to Reproduce Problem

1. Start a new project in Visual Basic. Form1 is created by default.
2. Add a Command button (Command1) to Form1.
3. Add the following code to the Command1_MouseDown event procedure of Form1:

      Sub Command1_MouseDown ()
         Static i
         i = i + 1
         Debug.Print "MouseDown - "; i
      End Sub
   						

4. Add the following code to the Command1_MouseUp event procedure of Form1:

      Sub Command1_MouseUp ()
         Static j
         j = j + 1
         Debug.Print "MouseUp - "; j
      End Sub
   						

5. From the Run menu, choose Start (ALT, R, S) or press the F5 key to run the program.
6. Click the Command1 button repeatedly. The debug window will show that fewer MouseDown events are generated than MouseUp events.