如果是API就这样
[DllImport("user32.dll")]
public static extern int SendMessage(IntPtr hWnd, int msg, int wParam, int lParam);
如果是ActiveX就项目--》添加引用!!
[DllImport("user32.dll")]
public static extern int SendMessage(IntPtr hWnd, int msg, int wParam, int lParam);
如果是ActiveX就项目--》添加引用!!
Activator.CreateInstance
Type.InvokeMember