/// <summary>
/// Timeout if read via interrupt transfer doesn't return.
/// </summary>
private void OnReadTimeout()
{
CloseCommunications();
_transferInProgress = false;
_sendOrGet = SendOrGet.Send;
}
/// <summary>
/// Timeout if write via interrupt transfer doesn't return.
/// </summary>
private void OnWriteTimeout()
{
CloseCommunications();
_transferInProgress = false;
_sendOrGet = SendOrGet.Get;
}
/// <summary>
/// Alternate sending and getting a report.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void cmdPeriodicTransfers_Click(object sender, EventArgs e)
{
try
{
if (cmdPeriodicTransfers.Text == "Start")
{
if (_transferInProgress)
{
DisplayTransferInProgressMessage();
}
else
{
_sendOrGet = SendOrGet.Send;
PeriodicTransfersStart();
}
}
else
{
PeriodicTransfersStop();
}
}
catch (Exception ex)
{
DisplayException(Name, ex);
throw;
}
}
/// <summary>
/// Request to send an Output report or get an Input report.
/// </summary>
private void SendOutputReportOrGetInputReport()
{
try
{
// If the device hasn't been detected, was removed, or timed out on a previous attempt
// to access it, look for the device.
if (!_deviceHandleObtained)
{
_deviceHandleObtained = FindTheHid();
}
if (_deviceHandleObtained)
{
if (_sendOrGet == SendOrGet.Send)
{
RequestToSendOutputReport();
_sendOrGet = SendOrGet.Get;
}
else
{
RequestToGetInputReport();
_sendOrGet = SendOrGet.Send;
}
}
}
catch (Exception ex)
{
DisplayException(Name, ex);
throw;
}
}
/// <summary>
/// Request to send or get a Feature report.
/// </summary>
private void SendOrGetFeatureReport()
{
try
{
// If the device hasn't been detected, was removed, or timed out on a previous attempt
// to access it, look for the device.
if (!_deviceHandleObtained)
{
_deviceHandleObtained = FindTheHid();
}
if (_deviceHandleObtained)
{
switch (_sendOrGet)
{
case SendOrGet.Send:
RequestToSendFeatureReport();
_sendOrGet = SendOrGet.Get;
break;
case SendOrGet.Get:
RequestToGetFeatureReport();
_sendOrGet = SendOrGet.Send;
break;
}
}
}
catch (Exception ex)
{
DisplayException(Name, ex);
throw;
}
}
/// <summary>
/// Timeout if write via interrupt transfer doesn't return.
/// </summary>
private void OnWriteTimeout()
{
try
{
MyMarshalDataToForm(FormActions.AddItemToListBox, "The attempt to write a report timed out.");
MyMarshalDataToForm(FormActions.ScrollToBottomOfListBox, "");
CloseCommunications();
MyMarshalDataToForm(FormActions.EnableSendOutputReportInterrupt, "");
_transferInProgress = false;
_sendOrGet = SendOrGet.Get;
}
catch (Exception ex)
{
DisplayException(Name, ex);
throw;
}
}
