public static void wpdEnum(string strDeviceId)
{
PortableDeviceApiLib.IPortableDeviceValues clientInfo =
(PortableDeviceApiLib.IPortableDeviceValues) new PortableDeviceTypesLib.PortableDeviceValues();
{
clientInfo.SetStringValue(ref WPD_CLIENT_NAME, szClientName);
clientInfo.SetUnsignedIntegerValue(ref WPD_CLIENT_MAJOR_VERSION, dwClientVersionMajor);
clientInfo.SetUnsignedIntegerValue(ref WPD_CLIENT_MINOR_VERSION, dwClientVersionMinor);
clientInfo.SetUnsignedIntegerValue(ref WPD_CLIENT_REVISION, dwClientRevision);
clientInfo.SetUnsignedIntegerValue(ref WPD_CLIENT_SECURITY_QUALITY_OF_SERVICE, SECURITY_IMPERSONATION);
clientInfo.SetUnsignedIntegerValue(ref WPD_CLIENT_DESIRED_ACCESS, GENERIC_READ);
clientInfo.SetUnsignedIntegerValue(ref WPD_CLIENT_SHARE_MODE, FILE_SHARE_READ | FILE_SHARE_WRITE);
}
{
//Console.WriteLine(strDeviceId);
PortableDeviceApiLib.PortableDevice dev =
new PortableDeviceApiLib.PortableDevice();
dev.Open(strDeviceId, clientInfo);
PortableDeviceApiLib.IPortableDeviceContent content = null;
dev.Content(out content);
if (null != content)
{
for (uint count = 0; count < 30; ++count)
{
Console.WriteLine("enumrate start");
countContent = 0;
bool result = wpdEnumContent(WPD_DEVICE_OBJECT_ID, content);
Console.WriteLine("enumrate end: count count={0}", countContent);
System.Threading.Thread.Sleep(1 * 1000);
if (false == result)
{
break;
}
}
content = null;
}
dev.Close();
dev = null;
}
}
static bool wpdEnumContent(string strObjectId, PortableDeviceApiLib.IPortableDeviceContent content)
{
if (null == strObjectId)
{
return(false);
}
if (null == content)
{
return(false);
}
//Console.WriteLine(strObjectId);
bool result = true;
PortableDeviceApiLib.IEnumPortableDeviceObjectIDs enumObj = null;
const uint dwFlags = 0;
const PortableDeviceApiLib.IPortableDeviceValues filter = null;
try
{
content.EnumObjects(dwFlags, strObjectId, filter, out enumObj);
}
catch (System.Exception e)
{
if (e is System.Runtime.InteropServices.COMException)
{
System.Runtime.InteropServices.COMException ex =
(System.Runtime.InteropServices.COMException)e;
Console.WriteLine("EnumObjects, hr={0:X}", (uint)ex.ErrorCode);
}
else
{
Console.WriteLine(e.Message);
}
//Console.WriteLine(e.StackTrace);
return(false);
}
if (null == enumObj)
{
return(false);
}
string[] strObjectIdArray = new string[MY_FETCH_COUNT];
uint nFetched = 0;
do
{
try
{
enumObj.Next(MY_FETCH_COUNT, strObjectIdArray, ref nFetched);
}
catch (System.Exception e)
{
if (e is System.Runtime.InteropServices.COMException)
{
System.Runtime.InteropServices.COMException ex =
(System.Runtime.InteropServices.COMException)e;
Console.WriteLine("enumObj Next, hr={0:X}", (uint)ex.ErrorCode);
}
else
{
Console.WriteLine(e.Message);
}
//Console.WriteLine(e.StackTrace);
result = false;
nFetched = 0;
break;
}
if (0 < nFetched)
{
countContent += nFetched;
for (uint index = 0; index < nFetched; ++index)
{
result = wpdEnumContent(strObjectIdArray[index], content);
if (false == result)
{
break;
}
}
if (false == result)
{
nFetched = 0;
break;
}
}
} while (0 < nFetched);
enumObj = null;
return(result);
}
static void Main(string[] args)
{
PortableDeviceApiLib.IPortableDeviceValues clientInfo =
(PortableDeviceApiLib.IPortableDeviceValues) new PortableDeviceTypesLib.PortableDeviceValues();
{
clientInfo.SetStringValue(ref WPD_CLIENT_NAME, szClientName);
clientInfo.SetUnsignedIntegerValue(ref WPD_CLIENT_MAJOR_VERSION, dwClientVersionMajor);
clientInfo.SetUnsignedIntegerValue(ref WPD_CLIENT_MINOR_VERSION, dwClientVersionMinor);
clientInfo.SetUnsignedIntegerValue(ref WPD_CLIENT_REVISION, dwClientRevision);
clientInfo.SetUnsignedIntegerValue(ref WPD_CLIENT_SECURITY_QUALITY_OF_SERVICE, SECURITY_IMPERSONATION);
clientInfo.SetUnsignedIntegerValue(ref WPD_CLIENT_DESIRED_ACCESS, GENERIC_READ);
clientInfo.SetUnsignedIntegerValue(ref WPD_CLIENT_SHARE_MODE, FILE_SHARE_READ | FILE_SHARE_WRITE);
}
for (uint loopCount = 0; loopCount < 100; ++loopCount)
{
PortableDeviceApiLib.PortableDeviceManager devMgr =
new PortableDeviceApiLib.PortableDeviceManager();
devMgr.RefreshDeviceList();
string strDeviceId = null;
uint nDeviceCount = 1; // 1 is allowed. over 2, leak CoTaskMemFree at marshall
System.Diagnostics.Debug.Assert(1 == nDeviceCount);
devMgr.GetDevices(ref strDeviceId, ref nDeviceCount);
System.Console.WriteLine("DeviceCount={0}", nDeviceCount);
if (0 < nDeviceCount)
{
//Console.WriteLine(strDeviceId);
PortableDeviceApiLib.PortableDevice dev =
new PortableDeviceApiLib.PortableDevice();
dev.Open(strDeviceId, clientInfo);
PortableDeviceApiLib.IPortableDeviceContent content = null;
dev.Content(out content);
if (null != content)
{
for (uint count = 0; count < 30; ++count)
{
Console.WriteLine("enumrate start");
countContent = 0;
bool result = wpdEnumContent(WPD_DEVICE_OBJECT_ID, content);
Console.WriteLine("enumrate end: count count={0}", countContent);
if (false == result)
{
break;
}
System.Threading.Thread.Sleep(1 * 1000);
}
content = null;
}
dev.Close();
dev = null;
}
devMgr = null;
System.Threading.Thread.Sleep(1 * 1000);
}
}