@ME BA

You are absolutely right. The opposite behaviour must be a bug !

If a result of an expression can not be changed by the remaining terms, then the remaining terms are not allowed to be executed, e.g.:

if( getkey() && busy == 0 )

or

if( busy == 0 && getkey() )

have a different working.
The first expression throw away any second key pressing if already busy.
But the second expression allow to start it again, during the action was still busy.


Peter