r=pedemont, sr=blizzard (platform specific), a=mkaply OS/2 only - add an extra check for detecting scroll mouse vs. keyboard events git-svn-id: svn://10.0.0.236/trunk@154535 18797224-902f-48f8-a5cc-f745e15eee43
r=pedemont, sr=blizzard (platform specific), a=mkaply OS/2 only - add an extra check for detecting scroll mouse vs. keyboard events git-svn-id: svn://10.0.0.236/trunk@154535 18797224-902f-48f8-a5cc-f745e15eee43