c# 智能设备应用程序不显示在任务栏以及最小化窗体

 

 

在c#winform应用程序中,窗体有ShowInTaskbar和FormWindowState.Minimized属性，通过.NET Framework类库可以轻松地实现窗体不显示在任务栏以及窗体最小化操作，而c#的智能设备.NET Compact Framework不支持这两项，要实现着两个功能，需要通过调用底层win32 API函数来实现，一大批Win32 底层操作的函数都存在于cordll.dll 动态链接库中。具体实现方法：

首先调用Win32 的申明：using System.Runtime.InteropServices;

1.窗体不显示在任务栏

            const int EXSTYLE = -20;

            const int WS_EX_NOANIMATION = 0x04000000;

            [DllImport("coredll.dll", SetLastError=true)]

            public static extern void SetWindowLong(IntPtr hWnd, int GetWindowLongParam, uint nValue);

            [DllImport("coredll.dll", SetLastError=true)]

            public static extern uint GetWindowLong(IntPtr hWnd, int nItem);

            [DllImport("coredll.dll")]

            private static extern IntPtr GetCapture();

            void NotShowInTaskbar()

            {

                  Capture = true;

                  IntPtr hwnd = GetCapture();

                  Capture = false;

                  uint style = GetWindowLong(hwnd, EXSTYLE);

                  style |= WS_EX_NOANIMATION; 

                  SetWindowLong(hwnd, EXSTYLE, style);

            }

2.最小化窗体

      [DllImport("coredll.dll")]

      static extern int ShowWindow(IntPtr hWnd, int nCmdShow);

 

      const int SW_MINIMIZED = 6;
   void  MiniMize()

   {

       ShowWindow(this.Handle, SW_MINIMIZED);

   }