我看了很多VB程序中获得本窗体的句柄都是用：Me.hwnd，可是我的.net上显示错误，好像只有Me.Handle.我想用的语句是：
Private Declare Function GetSystemMenu Lib "user32" (ByVal hwnd As Long, ByVal bRevert As Long) As Long
Dim hMenu As Long
hMenu = GetSystemMenu(Me.hwnd, 0)
其中最后一句的Me.hwnd显示错误。
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注意：在vb.net里面long数据类型占8个字节，而vb6里面long是4个字节，所以必须更改。另外me.Handle的确是窗体的句柄，不过在vs.net里面都统一成为intptr数据类型，用于表示指针或句柄的平台特定类型。
方法1：
改 Private Declare Function GetSystemMenu Lib "user32" (ByVal hwnd As Long, ByVal bRevert As Long) As Long
为
Private Declare Function GetSystemMenu Lib "user32" (ByVal hwnd As intptr, ByVal bRevert As integer) As intptr
Dim hMenu As intptr = GetSystemMenu(Me.Handle, 0)
方法2：
改 Private Declare Function GetSystemMenu Lib "user32" (ByVal hwnd As Long, ByVal bRevert As Long) As Long
为
Private Declare Function GetSystemMenu Lib "user32" (ByVal hwnd As integer, ByVal bRevert As integer) As integer
Dim hMenu As integer= GetSystemMenu(Me.Handle.toint32(), 0)