C# 窗口鼠标穿透以及取消窗口鼠标穿透

 

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private const int WS_EX_TRANSPARENT = 0x20;   private const int GWL_EXSTYLE = -20;   /// <summary> /// window 扩展样式 分层显示 /// </summary> private  const int WS_EX_LAYERED = 0x00080000;//取消鼠标穿透的     [DllImport("user32", EntryPoint = "SetWindowLong")] private static extern uint SetWindowLong(IntPtr hwnd, int nIndex, uint dwNewLong);   [DllImport("user32", EntryPoint = "GetWindowLong")] private static extern uint GetWindowLong(IntPtr hwnd, int nIndex);   [DllImport("user32.dll", CharSet = CharSet.Auto)] private static extern int SetWindowPos(IntPtr hWnd, int hWndInsertAfter, int x, int y, int Width, int Height, int flags);   public static void SetTranMouseWind(Window window) {     try     {         IntPtr hwnd = new WindowInteropHelper(window).Handle;         uint extendedStyle = GetWindowLong(hwnd, GWL_EXSTYLE);         SetWindowLong(hwnd, GWL_EXSTYLE, extendedStyle | WS_EX_TRANSPARENT);     }     catch { }   } public static void ReSetNormalWind(Window window) {     try     {         IntPtr hwnd = new WindowInteropHelper(window).Handle;         uint extendedStyle = GetWindowLong(hwnd, GWL_EXSTYLE| WS_EX_LAYERED);         SetWindowLong(hwnd, GWL_EXSTYLE, WS_EX_LAYERED);     }     catch { }   }