Help with AutoHotKey keybinding

I want to make a script so that when I hold shift and E it will use a spell in WoW. I've tried and tried to make this work, but just can't seem to get it. Any help would be greatly appreciated.

Code:

---

clonepush(strkey)
{
global winid
Loop %winid%
    {
    tmp:=winid%A_Index%
    IfWinNotActive, ahk_id %tmp%
        ControlSend, ,%strkey%, ahk_id %tmp%
    }
sleep 1
}



WinGet, winid, List,World of Warcraft

~+e::clonepush("{e down}{e up}")

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change ~+e::clonepush("{e down}{e up}")
the plus sign is the shift modifier change the e in {e down}{e up} to what ever key you want.