```javascript
let voidPtr = ref.refType(ref.types.void);
let stringPtr = ref.refType(ref.types.CString);
// 通过ffi加载user32.dll
let user32 = ffi.Library('user32', {
GetWindowTextW: ['long',['long',stringPtr,'long']]
});
//获取当前句柄的标题
let buf,name,ret;
buf = Buffer.alloc(255);
ret = user32.GetWindowTextW(hwnd,buf,255);
name = ref.readCString(buf,0);
console.log('name',name);
输出结果为:name ON锟絖锟絆
请问各位大神怎么办啊
```