c++ - Disable scrolling by hook -

i writing application allows scrolling, without focusing windows. i've done yet: created lowlevelmousehook. if lowlevelmouseproc recieves mousewheel-message searching handle @ cursor-position , send scroll-messages handle. hook looks this:

lresult callback mousehookcallback(int code, wparam wparam, lparam lparam) {     if(code < 0)         return callnexthookex(mousehookinstance, code, wparam, lparam);      if(usermousehookcallback != null)     {         usermousehookcallback(code, wparam, lparam);//scroll hovered window here         if(wparam == wm_mousewheel)             return -1;     }      return callnexthookex(mousehookinstance, code, wparam, lparam); } 

as can see, returing -1 if message mousewheel-message. should avoid scrolling focused window(i don't want scroll focused window, want scroll window hovered cursor). problem is, not cancel scrolling focused window. has idea how avoid scrolling focused window? @ moment there 2 windows getting scrolled. 1 mouse hover , 1 focused.

please don't downvote question , give me chance. doing best not able find solution.

i've found solution. very, very, simple. set <requestedexecutionlevel level="requireadministrator" uiaccess="false" /> in manifest or start administrator manually , works :)