BUG: Mouse Down Triggered on a Minimized Window

ID: Q135817

The information in this article applies to:

Microsoft Visual FoxPro for Windows, versions 3.0, 3.0b, 5.0a, 6.0

SYMPTOMS

The MouseDown event of a form occurs when the user presses a mouse button when the form has the focus. It is very useful when trying to detect mouse clicks or performing a specific action when the mouse is pressed. Forms created in Visual FoxPro running under Windows 3.1, Windows for Workgroups, and Windows 95 execute code in their MouseDown events when the Form is minimized. This behavior is not expected because MouseDown events should occur only when the Form is active.

WORKAROUND

Place the following code in the MouseDown event of the form:

   IF THISFORM.WindowState <> 1
      FORM::MouseDown
      * Any event, such as wait window prevents the default MouseDown event
   ENDIF

With this code, the default MouseDown event code will fire only if the window is not minimized.

STATUS

Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

Steps to Reproduce Problem

1. Create a new form in Visual FoxPro running under Windows 3.1,

   Windows 95, or Windows for Workgroups.

2. Place the following code in the MouseDown event procedure:

   WAIT WINDOW "MouseDown"

3. Run the form.

4. Minimize the form.

5. Click the minimize icon with the right or left mouse button. The

   MouseDown event occurs.

NOTE: This behavior is platform specific. If steps 1 through 5 are performed under Windows NT, the MouseDown event executes before the form appears on the screen and does not respond when the form is active.

Additional query words: 3.00 3.00b kbvfp300 kbvfp500 kbvfp600

Keywords          : kbVFp kbVFp300bbug kbVFp500abug kbVFp500bug buglist3.00 FxtoolSbuilder kbbuglist
Version           : WINDOWS: 3.0,3.0b,5.0a,6.0
Platform          : WINDOWS
Issue type        : kbbug