/// <summary>
/// Fired when data has been received over USB
/// </summary>
/// <param name="oInRep">Input report received</param>
protected override void HandleDataReceived(InputReport oInRep)
{
// Fire the event handler if assigned
if (OnButtonChanged != null)
{
BuzzInputReport oBuzIn = (BuzzInputReport)oInRep;
OnButtonChanged(this, new BuzzButtonChangedEventArgs(oBuzIn.Buttons, this.BuzzerIndex));
}
}
/// <summary>
/// Callback for above. Care with this as it will be called on the background thread from the async read
/// </summary>
/// <param name="iResult">Async result parameter</param>
protected void ReadCompleted(IAsyncResult iResult)
{
if (m_oFile == null)
{
// We've already disposed this object, don't do anymore reading
return;
}
byte[] arrBuff = (byte[])iResult.AsyncState; // retrieve the read buffer
try
{
m_oFile.EndRead(iResult); // call end read : this throws any exceptions that happened during the read
try
{
InputReport oInRep = CreateInputReport(); // Create the input report for the device
oInRep.SetData(arrBuff); // and set the data portion - this processes the data received into a more easily understood format depending upon the report type
HandleDataReceived(oInRep); // pass the new input report on to the higher level handler
}
finally
{
BeginAsyncRead(); // when all that is done, kick off another read for the next report
}
}
catch (IOException) // if we got an IO exception, the device was removed
{
HandleDeviceRemoved();
if (OnDeviceRemoved != null)
{
OnDeviceRemoved(this, new EventArgs());
}
Dispose();
}
catch (Exception)
{
// Ignore other types of errors
}
}
/// <summary>
/// virtual handler for any action to be taken when data is received. Override to use.
/// </summary>
/// <param name="oInRep">The input report that was received</param>
protected virtual void HandleDataReceived(InputReport oInRep)
{
}
