Working with Rows in Excel with AutoHotkey.ahk

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;*******************************************************
XL:=XL_Handle(1)
first_row_of_data:=XL_First_Row(XL)+1 ;First row
MsgBox % "first row of data: " first_row_of_data
MsgBox % "last row: " XL_Last_Row(XL)  ;Last row
MsgBox % "used rows: " XL_Used_Rows(XL) ;Used Rws
return

XL_First_Row(PXL){
	Return, PXL.Application.ActiveSheet.UsedRange.Rows(1).Row ;first used row in Excel
}

XL_Last_Row(PXL){
	Return, PXL.Application.ActiveSheet.UsedRange.Rows(PXL.Application.ActiveSheet.UsedRange.Rows.Count).Row
}

XL_Used_rows(PXL){
	Return,PXL.Application.ActiveSheet.UsedRange.Rows.Count
}

;  Function for connecting to Excel
XL_Handle(Sel){
	ControlGet, hwnd, hwnd, , Excel71, ahk_class XLMAIN ;identify the hwnd for Excel
	Obj:=ObjectFromWindow(hwnd,-16)
	return (Sel=1?Obj.Application:Sel=2?Obj.Parent:Sel=3?Obj.ActiveSheet:"")
}
;***borrowd & tweaked from Acc.ahk Standard Library*** by Sean  Updated by jethrow*****************
ObjectFromWindow(hWnd, idObject = -4){
	if(h:=DllCall("LoadLibrary","Str","oleacc","Ptr"))
		If DllCall("oleacc\AccessibleObjectFromWindow","Ptr",hWnd,"UInt",idObject&=0xFFFFFFFF,"Ptr",-VarSetCapacity(IID,16)+NumPut(idObject==0xFFFFFFF0?0x46000000000000C0:0x719B3800AA000C81,NumPut(idObject==0xFFFFFFF0?0x0000000000020400:0x11CF3C3D618736E0,IID,"Int64"),"Int64"), "Ptr*", pacc)=0
			Return ComObjEnwrap(9,pacc,1)
}
;***********************Show name of object handle is referencing********************************.
;~ XL_Reference(XL) ;will pop up with a message box showing what pointer is referencing
XL_Reference(PXL){
	;~ MsgBox, %HWND%
	;~ MsgBox, % ComObjType(window)
	MsgBox % ComObjType(PXL,"Name")
}