how to use xlset in Excel xll

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C++

MS-Excel

#define rgFuncsRows 1
#define rgArguments 11

static LPSTR rgFuncs[rgFuncsRows][rgArguments] =
{
	//	function title, argument types, function name, arg names, type (1=func,2=cmd),
	//		group name (func wizard), hotkey, help ID, func help string, (repeat) argument help strings

	{" AccChk",	" RRR",	" AccChk",	" loper,roper",	" 2",
	" 对账插件",	" ",
	" ",
	" 对比loper和roper，将loper在roper中不存在的作为结果",
	" 目标列",
	" 对比列 "
	}
};

and I register this function like this:

Excel4v( xlfRegister, &xConfirm, j+1, (LPXLOPER FAR *) &pParas[0] );

this function is defined here :

XLLFIN_API LPXLOPER AccChk( LPXLOPER ld,LPXLOPER rc )
 {
     XLOPER12 xRef, xValue;

     xRef.xltype = xltypeSRef;
     xRef.val.sref.count = 1;
     xRef.val.sref.ref.rwFirst = 2;
     xRef.val.sref.ref.rwLast = 5;
     xRef.val.sref.ref.colFirst = 5;
     xRef.val.sref.ref.colLast = 7;
     xValue.xltype = xltypeNum;
     xValue.val.num = 323;
     int rv = Excel12(xlSet, 0, 2, (LPXLOPER12)&xRef, (LPXLOPER12)&xValue);
     return NULL;
 }

and in excel 2010 ,I insert a MS Excel 4.0 macro sheet,and select a cell and edit its funtion =AccChk(A1:A9,B1:B7) but the function didn't work, the required rectangle area is empty.My target is writing an array of values into excel work sheet or macro sheet,what should I do?Thanks for your help!