小编Rav*_*nth的帖子

我正在使用全局键盘和鼠标钩来处理键盘和鼠标活动.我遇到的问题就像用户使用团队查看器或远程桌面(连接到远程计算机),然后我们无法获得键盘和鼠标挂钩(挂钩在本地计算机上).我们有一个后台计时器运行,它继续检查何时是最后输入时间然后如果它大于1分钟我将卸载挂钩并安装它.当我们这样做时,我每次卸载并安装钩子时都会获得唯一指针(ptrHook),但我无法收听事件.一旦挂钩丢失,即使在卸载和安装挂钩后无法获取事件.

对于鼠标钩

public void InstallHook(int processId)
{
  try
   {
     ProcessModule objCurrentModule = null;
     objCurrentModule = Process.GetProcessById(processId).MainModule;
     objMouseProcess = new LowLevelMouseProc(captureMouse);
     //In order to avoid memory access violation error allocate the memory from GCHandle
                //Refer :http://social.msdn.microsoft.com/Forums/en/csharpgeneral/thread/b0defb8f-1242-4485-a680-8773da07db2f
     GCHandle.Alloc(objMouseProcess);
     ptrHook = SetWindowsHookEx(WH_MOUSE_LL, objMouseProcess, GetModuleHandle(objCurrentModule.ModuleName), 0);
  }
}

对于键盘钩

public void InstallHook(int processId)
{
    try
    {
        ProcessModule objCurrentModule = null;
        objCurrentModule = Process.GetProcessById(processId).MainModule;
        objKeyboardProcess = new LowLevelKeyboardProc(captureKey);
        //In order to avoid memory access violation error allocate the memory from GCHandle
        //Refer :http://social.msdn.microsoft.com/Forums/en/csharpgeneral/thread/b0defb8f-1242-4485-a680-8773da07db2f
        GCHandle.Alloc(objKeyboardProcess);
        ptrHook …

我使用UISpy来检测outlook TO Address Field但是uispy将值返回为"？"

如果它是普通文本,那么Uispy会正确检测到它显示的是To Address.问题是当我们在To address字段中输入任何电子邮件地址时,它转换为超链接我们如何使用Ui间谍获取地址.

我正在使用Accord.Video.FFMPEG来录制屏幕.我面临的问题是CPU和内存利用率都过高.通常,我们的进程使用最大2%的CPU和30 MB的内存,但是当我们开始视频捕获时,CPU上升到17%,内存达到700MB.我试着把

所以GC.Collect();

但没有用.

private void video_NewFrame(object sender, NewFrameEventArgs eventArgs)
{
    try
    {
        if (this._isRecording)
        {
            int screenRecordingLength = screenRecrodingRule != null ? screenRecrodingRule.length : 500;
            //Bitmap frame;
            Bitmap frame = eventArgs.Frame;
            {
                Graphics graphics = Graphics.FromImage(frame);
                try
                {
                    CURSORINFO pci;
                    pci.cbSize = System.Runtime.InteropServices.Marshal.SizeOf(typeof(CURSORINFO));
                    if (GetCursorInfo(out pci))
                    {
                        if (pci.flags == CURSOR_SHOWING)
                        {
                            int x = pci.ptScreenPos.x - screenLeft;
                            int y = pci.ptScreenPos.y - screenTop;

                            Color c = Color.Yellow;
                            float width = 2;
                            int radius = 30;
                            if ((Control.MouseButtons & …

我正在使用IMessageFilter鼠标和键盘来跟踪用户输入.

static void Main()
{
    try
    {
         AddKeyboardMouseDevice(this.Handle);
         RegisterDevices();
    }
    catch (Exception ex)
    {
        Console.WriteLine("Unhandled exception occurred tray application." + ex.Message);
    }
}

public void AddKeyboardMouseDevice(IntPtr windowHandle)
{
    devices.Add(new RAWINPUTDEVICE(1, 6, 0x100, windowHandle));
    devices.Add(new RAWINPUTDEVICE(1, 2, 0x100, windowHandle));
}

public bool RegisterDevices()
{
    if (devices.Count == 0) return false;
    log.DebugFormat("Registering for keyboard mouse hook");
    RAWINPUTDEVICE[] d = devices.ToArray();
    bool result = RegisterRawInputDevices(d, devices.Count, Marshal.SizeOf(typeof(RAWINPUTDEVICE)));
    return result;
}

public bool PreFilterMessage(ref Message m)
{
    if (m.Msg == WM_INPUT)
    { …

我试图从 Windows 服务挂钩到 Outlook 应用程序，但出现异常操作不可用（来自 HRESULT 的异常：0x800401E3（MK_E_UNAVAILABLE））这是我的代码。

   public void ItemSendEvent()
    {
        try
        {
           if (Process.GetProcessesByName(ApplicationConstants.OUTLOOK_PROCESS_NAME).Count() > 0)
                {
                    // If so, use the GetActiveObject method to obtain the process and cast it to an Application object.
                    outlookApplication = Marshal.GetActiveObject(ApplicationConstants.OUTLOOK_APPLICATION_NAME) as Microsoft.Office.Interop.Outlook.Application;
                    Microsoft.Office.Interop.Outlook.NameSpace nameSpace = outlookApplication.GetNamespace(ApplicationConstants.OUTLOOK_NAME_SPACE);
                    nameSpace.Logon("", "", Missing.Value, Missing.Value);
                    nameSpace = null;
                    outlookApplication.ItemSend += outlookApplication_ItemSend;
                }
                log.Info("Outlook Item Send event registered successfully.");
        }
        catch (System.Exception ex)
        {
            log.Error("Exception occurred while registering Outlook Item Send event. " + ex.Message);
        }
    } …

我正在使用chart.js来显示折线图.如何隐藏chart.js折线图的工具提示标签？工具提示中的标签显示,undefined所以我想隐藏标签(请参见屏幕截图)？

也许有一种方法可以修改工具提示,我只能在工具提示中显示图例值？我的代码如下:

  myLine = new Chart(ctx).Line(lineChartData, {
      type: 'line',
      responsive: true,
      scaleShowGridLines : false,
      bezierCurve : false,
      animationEasing: "linear",
      tooltipEvents: ["mousemove", "touchstart", "touchmove"],
      showTooltips: true,
      scaleLineColor: "rgba(0,0,0,.8)",
  });

我正在使用 table2excel 将由 jQuery DataTables 支持的数据表导出到 Excel。我可以将数据导出到 Excel，但无法导出带有标题的表格。

这是我的代码

$('#btn-export').on('click', function () {
   $('<table>').append(table.$('tr').clone()).table2excel({
      exclude: "",
      name: "EmailTracking",
      filename: "EmailTracking" //do not include extension
   });
});

这是我的 HTML：

<table id="userGrid" class="table table-striped table-bordered dt-responsive nowrap " cellspacing="0" width="100%">
    <thead>
        <tr>
          <th>User</th>
           <th>Subject</th>
           <th>Sent On</th>
           <th>To</th>
           <th>Cc</th>
           <th>Bcc</th>
        </tr>
    </thead>
    <tbody>
    </tbody>
</table>