public static void WriteObject(IPortableDeviceKeyCollection collection)
{
uint num = 0;
collection.GetCount(ref num);
for (uint index = 0; index < num; index++)
{
PropertyKey key = new PropertyKey();
collection.GetAt(index, ref key);
//EnumExtentions.GetEnumFromAttrKey<TEnum>(key);
//Trace.WriteLine($"##### {((PropVariant)val).ToString()}");
}
}
/// <summary>
/// 获取总容量和可用容量
/// </summary>
/// <param name="storageId"></param>
/// <param name="freeSpace"></param>
/// <param name="storageCapacity"></param>
public void GetStorageCapacityAnFreeSpace(string storageId, out ulong freeSpace, out ulong storageCapacity)
{
IPortableDeviceKeyCollection keyCollection = (IPortableDeviceKeyCollection) new PortableDeviceTypesLib.PortableDeviceKeyCollection();
keyCollection.Add(ref pKey.WPD_STORAGE_FREE_SPACE_IN_BYTES);
keyCollection.Add(ref pKey.WPD_STORAGE_CAPACITY);
IPortableDeviceValues deviceValues;
deviceProperties.GetValues(storageId, keyCollection, out deviceValues);
deviceValues.GetUnsignedLargeIntegerValue(ref pKey.WPD_STORAGE_FREE_SPACE_IN_BYTES, out freeSpace);
deviceValues.GetUnsignedLargeIntegerValue(ref pKey.WPD_STORAGE_CAPACITY, out storageCapacity);
}