private static object ConvertPropertyValue(byte[] rawData, DEVPROP_TYPE type)
{
object value = null;
var baseType = type & DEVPROP_MASK_TYPE;
var typeModifiers = type & DEVPROP_MASK_TYPEMOD;
switch (baseType)
{
case DEVPROP_TYPE.DEVPROP_TYPE_EMPTY:
case DEVPROP_TYPE.DEVPROP_TYPE_NULL:
break;
case DEVPROP_TYPE.DEVPROP_TYPE_SBYTE:
if (typeModifiers.HasFlag(DEVPROP_TYPEMOD_ARRAY))
{
value = rawData.Cast <sbyte>();
}
else
{
value = (sbyte)rawData[0];
}
break;
case DEVPROP_TYPE.DEVPROP_TYPE_BYTE:
if (typeModifiers.HasFlag(DEVPROP_TYPEMOD_ARRAY))
{
value = rawData.Cast <byte>();
}
else
{
value = (byte)rawData[0];
}
break;
case DEVPROP_TYPE.DEVPROP_TYPE_BOOLEAN:
if (typeModifiers.HasFlag(DEVPROP_TYPEMOD_ARRAY))
{
value = rawData.Select(b => b != 0);
}
else
{
value = rawData[0] != 0;
}
break;
case DEVPROP_TYPE.DEVPROP_TYPE_STRING:
case DEVPROP_TYPE.DEVPROP_TYPE_STRING_INDIRECT:
// NOTE: Strings and lists of strings always have a NULL-terminator -- two bytes.
var s = Encoding.Unicode.GetString(rawData, 0, rawData.Length);
var dataAsString = Encoding.Unicode.GetString(rawData, 0, rawData.Length - 2);
if (typeModifiers.HasFlag(DEVPROP_TYPEMOD_LIST))
{
var stringValues = dataAsString.Split('\0');
value = stringValues;
}
else
{
value = dataAsString;
}
break;
case DEVPROP_TYPE.DEVPROP_TYPE_DEVPROPKEY:
System.Diagnostics.Debug.WriteLine("Conversion for DEVPROP_TYPE not implemented: " + baseType);
break;
case DEVPROP_TYPE.DEVPROP_TYPE_INT16:
case DEVPROP_TYPE.DEVPROP_TYPE_UINT16:
case DEVPROP_TYPE.DEVPROP_TYPE_INT32:
case DEVPROP_TYPE.DEVPROP_TYPE_UINT32:
case DEVPROP_TYPE.DEVPROP_TYPE_INT64:
case DEVPROP_TYPE.DEVPROP_TYPE_UINT64:
case DEVPROP_TYPE.DEVPROP_TYPE_FLOAT:
case DEVPROP_TYPE.DEVPROP_TYPE_DOUBLE:
case DEVPROP_TYPE.DEVPROP_TYPE_DECIMAL:
case DEVPROP_TYPE.DEVPROP_TYPE_GUID:
case DEVPROP_TYPE.DEVPROP_TYPE_CURRENCY:
case DEVPROP_TYPE.DEVPROP_TYPE_DATE:
case DEVPROP_TYPE.DEVPROP_TYPE_FILETIME:
case DEVPROP_TYPE.DEVPROP_TYPE_SECURITY_DESCRIPTOR:
case DEVPROP_TYPE.DEVPROP_TYPE_SECURITY_DESCRIPTOR_STRING:
case DEVPROP_TYPE.DEVPROP_TYPE_DEVPROPTYPE:
case DEVPROP_TYPE.DEVPROP_TYPE_BINARY:
case DEVPROP_TYPE.DEVPROP_TYPE_ERROR:
case DEVPROP_TYPE.DEVPROP_TYPE_NTSTATUS:
default:
System.Diagnostics.Debug.WriteLine("Conversion for DEVPROP_TYPE not implemented: " + baseType);
value = rawData;
break;
}
return(value);
}
private static extern bool SetupDiGetDevicePropertyW(IntPtr deviceInfoSet, [In] ref SP_DEVINFO_DATA deviceInfoData, [In] ref DEVPROPKEY propertyKey, [Out] out DEVPROP_TYPE propertyType, IntPtr propertyBuffer, uint propertyBufferSize, out uint requiredSize, uint flags);
