public UsbHidPort()
{
//initializing in initial state
product_id = 0;
vendor_id = 0;
specified_device = null;
device_class = Win32Usb.HIDGuid;
InitializeComponent();
}
public UsbHidPort(IContainer container)
{
//initializing in initial state
product_id = 0;
vendor_id = 0;
specified_device = null;
device_class = Win32Usb.HIDGuid;
container.Add(this);
InitializeComponent();
}
/// <summary>
/// Checks the devices that are present at the moment and checks if one of those
/// is the device you defined by filling in the product id and vendor id.
/// </summary>
public void CheckDevicePresent()
{
try
{
//Mind if the specified device existed before.
bool history = false;
if (specified_device != null)
{
history = true;
}
//USB\VID_0C2E&PID_0EE7
//USB\VID_2571&PID_4101
specified_device = SpecifiedDevice.FindSpecifiedDevice(this.vendor_id, this.product_id); // look for the device on the USB bus
if (specified_device != null) // did we find it?
{
if (OnSpecifiedDeviceArrived != null)
{
this.OnSpecifiedDeviceArrived(this, new EventArgs());
specified_device.DataRecieved += new DataRecievedEventHandler(OnDataRecieved);
specified_device.DataSend += new DataSendEventHandler(OnDataSend);
}
}
else
{
if (OnSpecifiedDeviceRemoved != null && history)
{
this.OnSpecifiedDeviceRemoved(this, new EventArgs());
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}