klaus.berndl@sdm.de wrote:
Jason Rumney wrote:
  
Is the value of w32-num-mouse-buttons 2?
    

yes.

But i use a 3-button mouse! I didn't know that a user has explicitly
set this variable to 3 if he uses a 3-button mouse?! Is this documented
somewhere??
  

It does no harm to have a 3 button mouse falsely detected as a 2-button mouse, since it only means the hack of pressing left and right buttons simultaneously to simulate a middle click is enabled when it does not need to be. Most likely your mouse drivers do not support querying the mouse for its capabilities so it is defaulting to the least common denominator case.