/// <summary>Extract the value of this registry type from a pointer.</summary>
/// <param name="value">The registry type value.</param>
/// <param name="ptr">The allocated memory pointer.</param>
/// <param name="size">The size of the allocated memory.</param>
/// <returns>The extracted value.</returns>
public static object GetValue(this Vanara.PInvoke.REG_VALUE_TYPE value, IntPtr ptr, uint size)
{
switch (value)
{
case PInvoke.REG_VALUE_TYPE.REG_DWORD:
case PInvoke.REG_VALUE_TYPE.REG_DWORD_BIG_ENDIAN:
var data = IntPtrConverter.Convert <byte[]>(ptr, 4);
if (BitConverter.IsLittleEndian && value == REG_VALUE_TYPE.REG_DWORD_BIG_ENDIAN || !BitConverter.IsLittleEndian && value == REG_VALUE_TYPE.REG_DWORD)
{
Array.Reverse(data);
}
return(BitConverter.ToUInt32(data, 0));
case PInvoke.REG_VALUE_TYPE.REG_EXPAND_SZ:
return(Environment.ExpandEnvironmentVariables(StringHelper.GetString(ptr, System.Runtime.InteropServices.CharSet.Auto, size)));
case PInvoke.REG_VALUE_TYPE.REG_MULTI_SZ:
return(ptr.ToStringEnum(System.Runtime.InteropServices.CharSet.Auto, 0, size).ToArray());
case PInvoke.REG_VALUE_TYPE.REG_QWORD:
return(IntPtrConverter.Convert <ulong>(ptr, size));
case PInvoke.REG_VALUE_TYPE.REG_SZ:
return(StringHelper.GetString(ptr, System.Runtime.InteropServices.CharSet.Auto, size));
case PInvoke.REG_VALUE_TYPE.REG_RESOURCE_LIST:
case PInvoke.REG_VALUE_TYPE.REG_FULL_RESOURCE_DESCRIPTOR:
case PInvoke.REG_VALUE_TYPE.REG_RESOURCE_REQUIREMENTS_LIST:
case PInvoke.REG_VALUE_TYPE.REG_BINARY:
return(IntPtrConverter.Convert <byte[]>(ptr, size));
case PInvoke.REG_VALUE_TYPE.REG_LINK:
throw new InvalidOperationException("Registry links cannot be retrived from a pointer. Please use RegOpenKeyEx.");
default:
case PInvoke.REG_VALUE_TYPE.REG_NONE:
return(ptr);
}
}
/// <summary>Extract the value of this registry type from a pointer.</summary>
/// <param name="value">The registry type value.</param>
/// <param name="ptr">The allocated memory pointer.</param>
/// <param name="size">The size of the allocated memory.</param>
/// <returns>The extracted value.</returns>
public static object GetValue(this Vanara.PInvoke.REG_VALUE_TYPE value, IntPtr ptr, uint size)
{
switch (value)
{
case PInvoke.REG_VALUE_TYPE.REG_DWORD:
return(IntPtrConverter.Convert <uint>(ptr, size));
case PInvoke.REG_VALUE_TYPE.REG_DWORD_BIG_ENDIAN:
var data = IntPtrConverter.Convert <byte[]>(ptr, 4);
return(unchecked ((uint)((data[0] << 24) | (data[1] << 16) | (data[2] << 8) | data[3])));
case PInvoke.REG_VALUE_TYPE.REG_EXPAND_SZ:
return(Environment.ExpandEnvironmentVariables(StringHelper.GetString(ptr)));
case PInvoke.REG_VALUE_TYPE.REG_LINK:
return(new Uri(StringHelper.GetString(ptr)));
case PInvoke.REG_VALUE_TYPE.REG_MULTI_SZ:
return(ptr.ToStringEnum());
case PInvoke.REG_VALUE_TYPE.REG_QWORD:
return(IntPtrConverter.Convert <ulong>(ptr, size));
case PInvoke.REG_VALUE_TYPE.REG_SZ:
return(StringHelper.GetString(ptr));
case PInvoke.REG_VALUE_TYPE.REG_RESOURCE_LIST:
case PInvoke.REG_VALUE_TYPE.REG_FULL_RESOURCE_DESCRIPTOR:
case PInvoke.REG_VALUE_TYPE.REG_RESOURCE_REQUIREMENTS_LIST:
case PInvoke.REG_VALUE_TYPE.REG_BINARY:
return(IntPtrConverter.Convert <byte[]>(ptr, size));
default:
case PInvoke.REG_VALUE_TYPE.REG_NONE:
return(ptr);
}
}
