private void appendToWindow() { IntPtr Handle = new WindowInteropHelper(this).Handle; //隐藏边框 int oldstyle = ComUtil.GetWindowLong(Handle, ComUtil.GWL_STYLE); ComUtil.SetWindowLong(Handle, ComUtil.GWL_STYLE, oldstyle & (~(ComUtil.WS_CAPTION | ComUtil.WS_CAPTION_2)) | ComUtil.WS_EX_LAYERED); //不在Alt+Tab中显示 int oldExStyle = ComUtil.GetWindowLong(Handle, ComUtil.GWL_EXSTYLE); ComUtil.SetWindowLong(Handle, ComUtil.GWL_EXSTYLE, oldExStyle & (~ComUtil.WS_EX_APPWINDOW) | ComUtil.WS_EX_TOOLWINDOW); //win7 if (Environment.OSVersion.Version.Major <= 6.1) { return; } IntPtr pWnd = ComUtil.FindWindow("Progman", null); if (pWnd != IntPtr.Zero) { IntPtr pWnd2 = ComUtil.FindWindowEx(pWnd, IntPtr.Zero, "SHELLDLL_DefView", null); if (pWnd2 != IntPtr.Zero) { ComUtil.SendMessage(pWnd, 0x052c, IntPtr.Zero, IntPtr.Zero); } else { //SendMessage(pWnd, 0x052c, (IntPtr)1, IntPtr.Zero); } } enumWinCallBack = new ComUtil.CallBack(enumWindowsProc); ComUtil.EnumWindows(enumWinCallBack, IntPtr.Zero); }