C# HWND类代码示例

		/// <summary>
		/// Flashes the window specified the number of times specified.
		/// </summary>
		/// <param name="hWnd">The window to flash.</param>
		/// <param name="flashCount">The number of times to flash it.</param>
		/// <returns></returns>
		public static bool FlashWindow(HWND hWnd, int flashCount)
		{
			FLASHINFO fwi;
			fwi.cbSize		= (UINT)Marshal.SizeOf(typeof(FLASHINFO));	// size
			fwi.hwnd		= hWnd;									// the window to flash
			fwi.dwFlags		= FLASHW_ALL;							// flash the caption and tray
			fwi.uCount		= (UINT)flashCount;							// how many times to flash it
			fwi.dwTimeout	= 0;									// use the default cursor blink rate

			return (FlashWindowEx(ref fwi) == BOOL.TRUE);
		}

		public static bool FlashWindow(HWND hWnd, bool flashUntilForeground)
		{
			FLASHINFO fwi;
			fwi.cbSize		= (UINT)Marshal.SizeOf(typeof(FLASHINFO));	// size
			fwi.hwnd		= hWnd;									// the window to flash
			fwi.dwFlags		= (flashUntilForeground ? FLASHW_ALL | FLASHW_TIMERNOFG : FLASHW_ALL);							// flash the caption and tray
			fwi.uCount		= 5;									// how many times to flash it
			fwi.dwTimeout	= 0;									// use the default cursor blink rate

			return (FlashWindowEx(ref fwi) == BOOL.TRUE);
		}

        public GraphicsPlus(HWND hwnd,
                 bool icm)
        {
            GpGraphics Graphics = new GpGraphics();

            if (icm)
            {
                lastResult = NativeMethods.GdipCreateFromHWNDICM(hwnd, out Graphics);
            }
            else
            {
                lastResult = NativeMethods.GdipCreateFromHWND(hwnd, out Graphics);
            }

            SetNativeGraphics(Graphics);
        }

 void DoThreading(EFile[] a_Files, List<LrentFile> a_FilesFin, API_Device D)
 {
     HWND v_MainBlock = ThreadManager.CreateSemaphore(0, 1);
     Queue<EFile> m_Files = new Queue<EFile>(a_Files.Length);
     foreach (EFile f in a_Files)
         m_Files.Enqueue(f);
     int c = Math.Max(Environment.ProcessorCount - 2, 1);
     c = Math.Min(c, m_Files.Count);
     c = 1;
     HWND[] m_Threads = new HWND[c];
     object[] O = new object[] { m_Files, a_FilesFin, v_MainBlock, D};
     for (int i = 0; i < m_Threads.Length; i++)
     {
         m_Threads[i] = ThreadManager.CreateThread(DoThreading2);
         ThreadManager.StartThread(m_Threads[i], O);
     }
     ThreadManager.WaitForSingleObject(v_MainBlock);
     ThreadManager.AbortObject(v_MainBlock);
 }

 public static HWND Cast(IntPtr h)
 {
     HWND hTemp = new HWND();
     hTemp.h = h;
     return hTemp;
 }

        // Misc functions
#if LATER
BOOL CALLBACK EnumThreadWndProc(HWND hwnd, LPARAM lParam) 
{
	*(HWND*)lParam = hwnd;
	return !IsWindowVisible(hwnd);
}

 public static extern LONG ChangeDisplaySettingsEx([MarshalAs(UnmanagedType.LPTStr)] LPCTSTR lpszDeviceName,
     LPDEVMODE lpDevMode, HWND hwnd, ChangeDisplaySettingsEnum dwflags, LPVOID lParam);

 public static extern BOOL BringWindowToTop(HWND hWnd);

 unsafe public static extern HRESULT DwmGetWindowAttribute(HWND hwnd, DwmWindowAttribute dwAttribute, void* pvAttribute, DWORD cbAttribute);

 internal extern static BOOL GetWindowRect(HWND windowHandle, out Win32Rectangle windowRectangle);

 static extern UIntPtr GetWindowLongPtrInternal(HWND hWnd, GetWindowLongOffsets nIndex);

 static extern ULONG GetWindowLongInternal(HWND hWnd, GetWindowLongOffsets nIndex);

 static extern LONG_PTR SetWindowLongPtrInternal(HWND hWnd, GetWindowLongOffsets nIndex,
     [MarshalAs(UnmanagedType.FunctionPtr)]WindowProcedure dwNewLong);

 static extern LONG SetWindowLongInternal(HWND hWnd, GetWindowLongOffsets nIndex, LONG dwNewLong);

 internal static extern BOOL ClientToScreen(HWND hWnd, ref Point point);