Microsoft KB Archive/135817

= BUG: Mouse Down Triggered on a Minimized Window =

Article ID: 135817

Article Last Modified on 5/6/2003

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APPLIES TO


 * Microsoft Visual FoxPro 3.0 Standard Edition
 * Microsoft Visual FoxPro 3.0b Standard Edition
 * Microsoft Visual FoxPro 5.0a
 * Microsoft Visual FoxPro 6.0 Professional Edition

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This article was previously published under Q135817



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.



Steps to Reproduce Problem
 Create a new form in Visual FoxPro running under Windows 3.1, Windows 95, or Windows for Workgroups.  Place the following code in the MouseDown event procedure: WAIT WINDOW "MouseDown"  Run the form. Minimize the form. Click the minimize icon with the right or left mouse button. The MouseDown event occurs.</ol>

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: kbvfp300 kbvfp500 kbvfp600

Keywords: kbbug KB135817

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