FIX: SendKeys Causes Erratic Mouse Behavior on IBM PS/2 (79603)
The information in this article applies to:
- Microsoft Visual Basic Standard Edition for Windows 2.0
- Microsoft Visual Basic Standard Edition for Windows 3.0
- Microsoft Visual Basic Professional Edition for Windows 2.0
- Microsoft Visual Basic Professional Edition for Windows 3.0
- Microsoft Visual Basic Standard Edition for Windows 1.0
- Microsoft Windows 3.0
This article was previously published under Q79603 SYMPTOMS
When a Visual Basic program executes the SendKeys statement on an IBM
PS/2 computer, Windows behaves erratically when you move the mouse
until it is shut down.
CAUSE
The erratic behavior is caused by continuous phantom mouse clicks and
mouse movements.
STATUS
Microsoft has confirmed this to be a bug in Microsoft Windows version
3.0. This bug was corrected in Microsoft Windows version 3.1.
MORE INFORMATION
If you are running Microsoft Windows 3.0 on a PS/2 computer and you
press the NUM LOCK key while moving the mouse, the mouse events become
erratic. The Visual Basic SendKeys statement affects the NUM LOCK key,
so this problem results -- just as if NUM LOCK were pressed.
When you move the mouse, phantom Click events result in symptoms such
as applications unexpectedly launching, or the mouse pointer jumping
around the screen.
This problem has been reported to happen on the IBM PS/2 Model
50, Model 50z, Model 60, and Model 80.
| Modification Type: | Major | Last Reviewed: | 12/12/2003 |
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| Keywords: | kbbug kbfix KB79603 |
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