/// <summary>
/// Stops the current async search if running.
/// </summary>
public void StopAsync()
{
if (AsyncRunning)
{
mdDiscovery.Stop();
mdDiscovery.DeviceAdded -= new DeviceAddedEventHandler(mdDiscovery_DeviceAdded);
mdDiscovery.DeviceRemoved -= new DeviceRemovedEventHandler(mdDiscovery_DeviceRemoved);
mdDiscovery.SearchComplete -= new SearchCompleteEventHandler(mdDiscovery_SearchComplete);
mdDiscovery.Dispose();
mdDiscovery = null;
}
}
/// <summary>
/// Finds devices by device or service type synchronously using a timeout period.
/// </summary>
/// <param name="uriString">The URI string to search for or null / empty for all.</param>
/// <param name="timeoutMS">The maximum timeout time in milliseconds to wait or -1 for wait forever.</param>
/// <param name="maxDevices">The maximum number of devices to find before returning or 0 for as many as possible.</param>
/// <param name="searchCompleted">True if the search completed and all available devices were returned.</param>
/// <param name="addressFamily">The address family to search in. (Vista or above only).</param>
/// <param name="resolveNetworkInterfaces">True to resolve network interface Guids.</param>
/// <returns>A Devices list containing the found devices.</returns>
public static Devices FindDevices(
string uriString,
int timeoutMS,
int maxDevices,
out bool searchCompleted,
AddressFamilyFlags addressFamily = AddressFamilyFlags.IPvBoth,
bool resolveNetworkInterfaces = false)
{
Discovery ldDiscovery = new Discovery(uriString, addressFamily, resolveNetworkInterfaces);
Devices ldDevices = new Devices();
bool lbSearchCompleted = false;
ManualResetEvent lmreComplete = new ManualResetEvent(false);
ldDiscovery.DeviceAdded +=
(sender, args) =>
{
ldDevices.Add(args.Device);
if (maxDevices > 0 && ldDevices.Count >= maxDevices)
{
lmreComplete.Set();
}
};
ldDiscovery.SearchComplete += (sender, args) =>
{
lbSearchCompleted = true;
lmreComplete.Set();
};
ldDiscovery.Start();
lmreComplete.WaitOne(timeoutMS);
searchCompleted = lbSearchCompleted;
ldDiscovery.Dispose();
return(ldDevices);
}
/// <summary>
/// Finds devices by device or service type synchronously using a timeout period.
/// </summary>
/// <param name="uriString">The URI string to search for or null / empty for all.</param>
/// <param name="timeoutMS">The maximum timeout time in milliseconds to wait or -1 for wait forever.</param>
/// <param name="maxDevices">The maximum number of devices to find before returning or 0 for as many as possible.</param>
/// <param name="searchCompleted">True if the search completed and all available devices were returned.</param>
/// <param name="addressFamily">The address family to search in. (Vista or above only).</param>
/// <param name="resolveNetworkInterfaces">True to resolve network interface Guids.</param>
/// <returns>A Devices list containing the found devices.</returns>
public static Devices FindDevices(
string uriString,
int timeoutMS,
int maxDevices,
out bool searchCompleted,
AddressFamilyFlags addressFamily = AddressFamilyFlags.IPvBoth,
bool resolveNetworkInterfaces = false)
{
Discovery ldDiscovery = new Discovery(uriString, addressFamily, resolveNetworkInterfaces);
Devices ldDevices = new Devices();
bool lbSearchCompleted = false;
ManualResetEvent lmreComplete = new ManualResetEvent(false);
ldDiscovery.DeviceAdded +=
(sender, args) =>
{
ldDevices.Add(args.Device);
if (maxDevices > 0 && ldDevices.Count >= maxDevices)
lmreComplete.Set();
};
ldDiscovery.SearchComplete += (sender, args) =>
{
lbSearchCompleted = true;
lmreComplete.Set();
};
ldDiscovery.Start();
lmreComplete.WaitOne(timeoutMS);
searchCompleted = lbSearchCompleted;
ldDiscovery.Dispose();
return ldDevices;
}