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I used to have an app that would scroll the window your mouse was hovering over instead of scrolling the active window. Unfortunately I lost that app. Does anyone know what that app is called?

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up vote 2 down vote accepted

I use AutoHotKey for this:

EasyWheel(d)
; if _WHEELAUTOFOCUS if set, check which window is under the mouse and gives it focus if it hasn't already
; then send scroll event to the control under the mouse
; original code from Shimanov: http://www.autohotkey.com/forum/viewtopic.php?t=6772#54821
{
Global _WHEELACC
   , _WHEELMAXN
   , _WHEELAUTOFOCUS
Static t, s


   if ( A_TickCount > 500+t) {
      t := A_TickCount
      s :=0x780000
   }
   else if (s < _WHEELMAXN)
      s += _WHEELACC

   MouseGetPos x, y, hwnd
   h := DllCall("WindowFromPoint", "int", x, "int", y)
   if _WHEELAUTOFOCUS && (hwnd<>WinExist("A"))
      WinActivate, ahk_id %hwnd%
     testan:=WinActive("A")
    if (testan<>hwnd){
    	SendMessage, 0x20A, d*s,(y<<16)|x,, ahk_id %h%
    	}
    	else if (d=-1){
    	send {WheelDown}
    	}else{
    	send {WheelUp}
    	}
}


WheelUp:: EasyWheel(1)
WheelDown:: EasyWheel(-1)
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+1 for AHK -- amazing little program – bedwyr Nov 6 '09 at 21:20
    
I adore it. I don't know what I'd do without it, apart from be massively less productive and have less fun. – Phoshi Nov 6 '09 at 21:26
    
Not what I the app I was looking for, but 10x better. BTW, always love your comments on Lifehacker. – sound2man Nov 6 '09 at 21:34
1  
Thanks :) That script is slightly edited from the version I took off the official forums, it sends an actual wheel-down message if the window is focussed. No real difference, but certain applications can handle things... differently, and that seemed to maximize compatibility with everything <3 – Phoshi Nov 6 '09 at 21:36
1  
Does not work in Visual Studio 2010. – Czarek Tomczak Oct 22 '12 at 17:07

katmouse works well - small and easy to enable or disable from the system trayp

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works perfectly for me, thanks – davr Nov 6 '09 at 23:42
    
Works perfectly for me too, in Windows 7 64 bit. Unobtrusive and reliable little application :) – yummer Nov 18 '11 at 12:16

There’s a few that can do that, but TweakUI for sure has that option (Mouse->X-Mouse).

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1  
Can you add the other ones? I'm looking for one that runs on Windows 7 (64 bits). – Snark Nov 6 '09 at 21:01

I use WizMouse. Works in Vista and 7.

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XMouse Toggle is a stand alone utility to do this on XP, Vista, 7 both 32 and 64 bit.

XMouse Toggle

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