public void Refresh()
{
_deviceManager.RefreshDeviceList();
Clear();
// Determine how many WPD devices are connected
var deviceIds = new string[1];
uint count = 1;
_deviceManager.GetDevices(ref deviceIds[0], ref count);
if (count == 0)
{
return; // no devices connected
}
// Retrieve the device ID for each connected device
deviceIds = new string[count];
_deviceManager.GetDevices(ref deviceIds[0], ref count);
// Add devices to our collection
for (int i = 0; i < deviceIds.Length; i++)
{
Add(new PortableDevice(deviceIds[i]));
}
}
private void RefreshDevices()
{
portableDevices.Clear();
deviceManager.RefreshDeviceList();
uint _countDevices = 1;
deviceManager.GetDevices(null, ref _countDevices);
var devicesIds = new string[_countDevices];
deviceManager.GetDevices(devicesIds, ref _countDevices);
countDevices = _countDevices;
}
/// <summary>
/// 枚举所有便携式设备（MTP模式）
/// </summary>
/// <returns>返回设备id数组</returns>
private static string[] EnumerateDevices()
{
string[] devicesIds = null;
PortableDeviceManagerClass deviceManager = new PortableDeviceManagerClass();
uint deviceCount = 1; //设备数目初始值必须大于0
deviceManager.GetDevices(null, ref deviceCount); //获取设备数目必须置第一个参数为null
if (deviceCount > 0)
{
devicesIds = new string[deviceCount];
deviceManager.GetDevices(devicesIds, ref deviceCount);
}
return(devicesIds);
}
public static string[] GetDeviceIds()
{
var deviceManager = new PortableDeviceManagerClass();
uint deviceCount = 1;
deviceManager.GetDevices(null, ref deviceCount);
if (deviceCount < 1)
{
return(new string[0]);
}
var deviceIds = new string[deviceCount];
deviceManager.GetDevices(ref deviceIds[0], ref deviceCount);
return(deviceIds);
}
/// <summary>
/// ポータブル デバイスを列挙します。
/// </summary>
/// <returns>ポータブル デバイスのコレクション。</returns>
public static IEnumerable <WpdDevice> EnumDevices()
{
var m = new PortableDeviceManagerClass();
uint count = 1;
m.GetDevices(null, ref count);
if (count == 0)
{
yield break;
}
var ids = new string[count];
m.GetDevices(ids, ref count);
foreach (var id in ids)
{
yield return(new WpdDevice(id));
}
}
/// <summary>
/// ポータブル デバイスを列挙します。
/// </summary>
/// <returns>ポータブル デバイスのコレクション。</returns>
public static IEnumerable<WpdDevice> EnumDevices()
{
var m = new PortableDeviceManagerClass();
uint count = 1;
m.GetDevices( null, ref count );
if( count == 0 ) { yield break; }
var ids = new string[ count ];
m.GetDevices( ids, ref count );
foreach( var id in ids )
{
yield return new WpdDevice( id );
}
}
