Question

是否有可能通过C＃刷新Windows CE中的任务栏？

在我的软件中，我通过OpenNETCF.ToolHelp.ProcessEntry.Kill（）杀死了一些进程这工作正常，图标从任务栏中删除，但图标的空间仍然保留。经过一些测试后，我杀死了大约20个进程，现在它从任务栏中推出了启动按钮。

通过单击删除空白区域。

如何从C＃程序中刷新任务栏？

编辑：我目前正在研究CE 4.2

Answer 1

尝试获取任务栏窗口的句柄P /调用FindWindow，查找＆＃34; HHTaskBar＆＃34;作为班级名称。然后使窗口无效。

Answer 2

根据Damon8or的建议，以下示例代码可以满足您的需求：

[DllImport("coredll.dll")]
public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

[DllImport("coredll.dll")]
public static extern IntPtr SendMessage(IntPtr hWnd, int nMsg, IntPtr wParam, IntPtr lParam);

private const int WM_MOUSEMOVE = 0x0200;

public static void RefreshTrayArea()
{
    // The client rectangle can be determined using "GetClientRect" (from coredll.dll) but
    // does require the taskbar to be visible. The values used in the loop below were
    // determined empirically.
    IntPtr hTrayWnd = FindWindow("HHTaskBar", null);
    if (hTrayWnd != IntPtr.Zero)
    {
        int nStartX = (Screen.PrimaryScreen.Bounds.Width / 2);
        int nStopX = Screen.PrimaryScreen.Bounds.Width;
        int nStartY = 0;
        int nStopY = 26;    // From experimentation...
        for (int nX = nStartX; nX < nStopX; nX += 10)
            for (int nY = nStartY; nY < nStopY; nY += 5)
                SendMessage(hTrayWnd,
                    WM_MOUSEMOVE, IntPtr.Zero, (IntPtr)((nY << 16) + nX));
    }
}

希望有所帮助。

刷新Windows CE - 任务栏

2 个答案: