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On Wed, 18 Jul 2001, R. Timothy Edwards wrote:

> .....
>    My experience with "wheel" mice is that while the wheel looks and acts
> like a button, it does not map to any of the five buttons normally accepted
> by the X server.

I had a similar problem to Professor Sharma, but in my case the only
problem was caused by having Emulate3Buttons set in my XF86Config.

I'm using a Trekker Wheel Mouse PS/2 Compatible.  I just checked in Magic
and with the settings I'm using everything is fine.  I can right click and
hold, then left click to extend the bottom-left of the selection box.  I
can then press the middle button to paint the selected region with the
paint under the cursor.

A good check for the mouse is simply to run mev under a console window
(not in an X session).  The left, center and right mouse buttons report
mouse events on buttons 4, 2 and 1 respectively (both on press and
release). If I try really hard to push left and right simultaneously it
reports events on button 5, which I assumes is just reporting 1 + 4 = 5.

Pushing the central wheel reports button 2.  Again, if I try really hard
for simultaneous depression of the left and center buttons I can get it to
report a 6.

Clearly, at least in my case, the mouse can report individually which
combination of buttons is pressed.  Of course I'm sure that not all wheel
mice are so well behaved.  Doing the check outside of X in this way is
probably a good way of separating out the effects of what the mouse is
reporting from what X is interpreting.

-Rob Penny (rob AT ucsd DOT edu)

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