如何获取QQ消息？

import com;

var oleaut = raw.loadDll("OleAut32.DLL"); 
var oleacc = raw.loadDll("OLEACC.DLL"); 
IID_IAccessible = '\xE0\x36\x87\x61\x3D\x3C\xCF\x11\x81\x0C\x00\xAA\x00\x38\x9B\x71';

var findAccessibleChildren;
findAccessibleChildren = function(accParent,name){ 

    //结构体数组
    var variants = { 
        struct item[] ={ 
            //动态数组,使用length指定数组长度
            length = accParent.accChildCount;
            {
                WORD vt; 
                WORD r1;
                WORD r2;
                WORD r3;
                ptr pdispVal;
                ptr r4;
            };
        }
    }
    
    var obtained = {int size};//用结构体给API提供int指针
    var hr = oleacc.AccessibleChildren(accParent, 0,accParent.accChildCount, variants,obtained);
    if( hr < 0 ) return;//COM中小于0的都是错误码

    for(i=1;obtained.size;1){
        var variant = variants.item[ i ] 
        if( variant.vt != 9/*_VT_DISPATCH*/ ) {
            oleaut.VariantClear(variant);
            continue;
        }
        
        var accChild = com.QueryObject( variant.pdispVal ); //转换为COM对象(COM.IDispatch)
        oleaut.VariantClear(variant);;//释放Variant对象
        
        if( accChild.accName(0/*CHILDID_SELF*/) == name ){  
            var v = accChild.accValue(0/*CHILDID_SELF*/);
            if(#v) return v;
        }
        
        var v = findAccessibleChildren(accChild,name);
        if(#v) return v;
    }
}

findAccessibleString = function(hwnd,name){
    var pvObject = {ptr p}
    if( 0 == oleacc.AccessibleObjectFromWindow(hwnd,0,IID_IAccessible,pvObject) ){ 
        var accParent = com.QueryObject( pvObject.p ); //转换为COM对象(COM.IDispatch)
        com.Release(pvObject.p);
        
        return findAccessibleChildren( com.QueryObject( pvObject.p ),name );
    }   
}

import winex;
import console;

for hwnd in winex.each( "TXGuiFoundation") { 
    var qqMessage = findAccessibleString(hwnd,"消息");
    if( #qqMessage ) win.msgbox( qqMessage )
}
这段代码是老大发的，但好像获取不到，不知道怎么回事？