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// Copyright © 2006-2010 Travis Robinson. All rights reserved.
//
// website: http://sourceforge.net/projects/libusbdotnet
// e-mail: libusbdotnet@gmail.com
//
// This program is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. or
// visit www.gnu.org.
//
//
using System;
using System.Text;
using LibUsbDotNet.Internal.LibUsb;
using LibUsbDotNet.Main;
namespace LibUsbDotNet.LibUsb
{
internal static class LibUsbDeviceRegistryKeyRequest
{
public static byte[] RegGetRequest(string name, int valueBufferSize)
{
if (valueBufferSize < 1 || name.Trim().Length == 0) throw new UsbException("Global", "Invalid DeviceRegistry het parameter.");
LibUsbRequest req = new LibUsbRequest();
int uOffset = LibUsbRequest.Size;
req.DeviceRegKey.KeyType = (int) KeyType.RegBinary;
byte[] bytesName = Encoding.Unicode.GetBytes(name + "\0");
req.DeviceRegKey.NameOffset = uOffset;
uOffset += bytesName.Length;
req.DeviceRegKey.ValueOffset = uOffset;
req.DeviceRegKey.ValueLength = (valueBufferSize);
uOffset += Math.Max(uOffset + 1, valueBufferSize - (LibUsbRequest.Size + bytesName.Length));
byte[] buffer = new byte[uOffset];
byte[] regBytes = req.Bytes;
Array.Copy(regBytes, buffer, regBytes.Length);
Array.Copy(bytesName, 0, buffer, req.DeviceRegKey.NameOffset, bytesName.Length);
return buffer;
}
public static byte[] RegSetBinaryRequest(string name, byte[] value)
{
LibUsbRequest req = new LibUsbRequest();
int uOffset = LibUsbRequest.Size;
req.DeviceRegKey.KeyType = (int) KeyType.RegBinary;
byte[] bytesName = Encoding.Unicode.GetBytes(name + "\0");
byte[] bytesValue = value;
req.DeviceRegKey.NameOffset = uOffset;
uOffset += bytesName.Length;
req.DeviceRegKey.ValueOffset = uOffset;
req.DeviceRegKey.ValueLength = bytesValue.Length;
uOffset += bytesValue.Length;
byte[] buffer = new byte[uOffset];
byte[] regBytes = req.Bytes;
Array.Copy(regBytes, buffer, regBytes.Length);
Array.Copy(bytesName, 0, buffer, req.DeviceRegKey.NameOffset, bytesName.Length);
Array.Copy(bytesValue, 0, buffer, req.DeviceRegKey.ValueOffset, bytesValue.Length);
return buffer;
}
public static byte[] RegSetStringRequest(string name, string value)
{
LibUsbRequest req = new LibUsbRequest();
int uOffset = LibUsbRequest.Size;
req.DeviceRegKey.KeyType = (int) KeyType.RegSz;
byte[] bytesName = Encoding.Unicode.GetBytes(name + "\0");
byte[] bytesValue = Encoding.Unicode.GetBytes(value + "\0");
req.DeviceRegKey.NameOffset = uOffset;
uOffset += bytesName.Length;
req.DeviceRegKey.ValueOffset = uOffset;
req.DeviceRegKey.ValueLength = bytesValue.Length;
uOffset += bytesValue.Length;
byte[] buffer = new byte[uOffset];
byte[] regBytes = req.Bytes;
Array.Copy(regBytes, buffer, regBytes.Length);
Array.Copy(bytesName, 0, buffer, req.DeviceRegKey.NameOffset, bytesName.Length);
Array.Copy(bytesValue, 0, buffer, req.DeviceRegKey.ValueOffset, bytesValue.Length);
return buffer;
}
#region Nested Types
private enum KeyType
{
RegSz = 1, // Unicode nul terminated string
RegBinary = 3, // Free form binary
}
#endregion
}
}
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