SendMessage在.net中的用法

[fyming]

在vb6中常用的API函数SendMessage，在.NET下有问题。请看：
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Integer, ByVal wMsg As Integer, ByVal wParam As Integer, ByVal lParam As Any) As Integer
Private Const WM_NCLBUTTONDOWN = &HA1
Private Const HTCAPTION = 2
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问题是hwnd,在vb6中直接指定目标窗体的hwnd也就是了，比如me.hwnd,但在.net下这样写不行

我看了半天也没搞明白，请求帮忙指点一下

[wind_cloud2011]

.net 用Handle，me.Handle