winform技巧—去掉Flash右键菜单

#region 去掉Flash右键菜单，API函数的声明


        private const int GWL_WNDPROC = -4;


        public delegate IntPtr FlaWndProc(IntPtr hWnd,int msg,IntPtr wParam,IntPtr lParam);


        private IntPtr OldWndProc = IntPtr.Zero;


        private FlaWndProc Wpr = null;


        [DllImport("user32.dll",CharSet = CharSet.Auto)]


        public static extern IntPtr SetWindowLong(IntPtr hWnd,int nIndex,FlaWndProc wndProc);


        [DllImport("user32.dll",CharSet = CharSet.Auto)]


        public static extern IntPtr CallWindowProc(IntPtr wndProc,IntPtr hWnd,IntPtr lParam);


        private IntPtr FlashWndProc(IntPtr hWnd,IntPtr lParam)
        {


            if (msg == 516)   //516就是对应鼠标的右键，当然你也可以用0X0204右键鼠标的16进制编码


                return (IntPtr)0;   //什么都不做


            return CallWindowProc(OldWndProc,hWnd,msg,wParam,lParam);


        }


        #endregion