用C#操作类读写WinCE平台Mac地址

前段时间在测试我们触摸屏联网性能的时候，由于屏的Mac地址通过注册表设置，而PB定制WinCE内核的时候就有一个默认值，所以一批下来Mac地址都一样，两台以上的机器一联网准出问题，通过注册表软件去修改Mac地址太麻烦了，所以做了一个小的Mac地址软件。

以前用VB做了一个注册表操作类（参见我的blog：http://blog.csdn.net/yefanqiu/archive/2004/07/13/40379.aspx），功能比较详尽；现在用C#做了一个注册表操作类也别简单的只做数据读写了，索性也做个全功能的了。由于.Net在域名空间Microsoft.Win32中提供RegistryKey类，操作注册表还是比较方便的，唯感不足的时在操作多级子键的时候不很便捷，所以在封装注册表操作类的时候也把这部分内容给考虑进去了。

注册表操作类代码（可以用在.Net精简框架集下）如下：

///<summary>

///注册表操作类 -- 叶帆工作室

///</summary>

public class YFReg

{

public enum HKEY { HKEY_LOCAL_MACHINE = 0, HKEY_CLASSES_ROOT = 1, HKEY_CURRENT_USER = 2, HKEY_USERS = 3 };

private RegistryKey[] reg = new RegistryKey[4];

public YFReg()

{

reg[(int)HKEY.HKEY_LOCAL_MACHINE] = Registry.LocalMachine;

reg[(int)HKEY.HKEY_CLASSES_ROOT] = Registry.ClassesRoot;

reg[(int)HKEY.HKEY_CURRENT_USER] = Registry.CurrentUser;

reg[(int)HKEY.HKEY_USERS] = Registry.Users;

}

//读指定变量值

public string ReadValue(HKEY Root,string SubKey,string ValueName)

{

RegistryKey subKey=reg[(int)Root];

if (ValueName.Length == 0) return "[ERROR]";

try

{

if (SubKey.Length > 0)

{

string[] strSubKey = SubKey.Split('//');

foreach (string strKeyName in strSubKey)

{

subKey = subKey.OpenSubKey(strKeyName);

}

}

string strKey = subKey.GetValue(ValueName).ToString();

subKey.Close();

return strKey;

}

catch

{

return "[ERROR]";

}

}

//读指定变量的类型

public RegistryValueKind ReadValueType(HKEY Root, string SubKey, string ValueName)

{

RegistryKey subKey = reg[(int)Root];

if (ValueName.Length == 0) return RegistryValueKind.Unknown;

try

{

if (SubKey.Length > 0)

{

string[] strSubKey = SubKey.Split('//');

foreach (string strKeyName in strSubKey)

{

subKey = subKey.OpenSubKey(strKeyName);

}

}

RegistryValueKind valueType = subKey.GetValueKind(ValueName);

subKey.Close();

return valueType;

}

catch

{

return RegistryValueKind.Unknown;

}

}

//写指定变量值

public int WriteValue(HKEY Root, string SubKey, string ValueName, string ValueData)

{

return WriteValue(Root, SubKey, ValueName, ValueData, RegistryValueKind.String);

}

//写指定变量值

public int WriteValue(HKEY Root, string SubKey, string ValueName,object ValueData,RegistryValueKind ValueType)

{

RegistryKey subKey = reg[(int)Root];

if (ValueName.Length == 0) return 2;

try

{

if (SubKey.Length > 0)

{

string[] strSubKey = SubKey.Split('//');

foreach (string strKeyName in strSubKey)

{

subKey = subKey.CreateSubKey(strKeyName);

}

}

subKey.SetValue(ValueName, ValueData, ValueType);

subKey.Close();

return 0;

}

catch

{

return 1;

}

}

//删除指定变量

public int DeleteValue(HKEY Root, string SubKey, string ValueName)

{

RegistryKey subKey = reg[(int)Root];

try

{

if (SubKey.Length > 0)

{

string[] strSubKey = SubKey.Split('//');

foreach (string strKeyName in strSubKey)

{

subKey = subKey.OpenSubKey(strKeyName,true);

}

}

subKey.DeleteValue(ValueName, true);

subKey.Close();

return 0;

}

catch

{

return 1;

}

}

//创建指定的键

public int CreateKey(HKEY Root, string SubKey, string KeyName)

{

RegistryKey subKey = reg[(int)Root];

if (KeyName.Length == 0) return 2;

try

{

if (SubKey.Length > 0)

{

string[] strSubKey = SubKey.Split('//');

foreach (string strKeyName in strSubKey)

{

subKey = subKey.CreateSubKey(strKeyName);

}

}

subKey.CreateSubKey(KeyName);

subKey.Close();

return 0;

}

catch

{

return 1;

}

}

//删除指定的键

public int DeleteKey(HKEY Root, string SubKey, string KeyName)

{

RegistryKey subKey = reg[(int)Root];

try

{

if (SubKey.Length > 0)

{

string[] strSubKey = SubKey.Split('//');

foreach (string strKeyName in strSubKey)

{

subKey = subKey.OpenSubKey(strKeyName, true);

}

}

subKey.DeleteSubKeyTree(KeyName);

subKey.Close();

return 0;

}

catch

{

return 1;

}

}

//判断指定的键是否存在

public int IsExistKey(HKEY Root, string SubKey, string KeyName)

{

RegistryKey subKey = reg[(int)Root];

try

{

if (SubKey.Length > 0)

{

string[] strSubKey = SubKey.Split('//');

foreach (string strKeyName in strSubKey)

{

subKey = subKey.OpenSubKey(strKeyName);

}

}

string[] strSubKey1 = subKey.GetSubKeyNames();

foreach (string strKeyName in strSubKey1)

{

if (strKeyName == KeyName) return 0;

}

return 1;

}

catch

{

return 2;

}

}

//枚举指定的键的子键

public string[] EnumKeyName(HKEY Root, string SubKey)

{

RegistryKey subKey = reg[(int)Root];

if (SubKey.Length == 0) return null;

try

{

string[] strSubKey = SubKey.Split('//');

foreach (string strKeyName in strSubKey)

{

subKey = subKey.OpenSubKey(strKeyName);

}

string[] strKey = subKey.GetSubKeyNames();

subKey.Close();

return strKey;

}

catch

{

return null;

}

}

//枚举指定的键的值

public string[] EnumValueName(HKEY Root, string SubKey)

{

RegistryKey subKey = reg[(int)Root];

if (SubKey.Length == 0) return null;

try

{

string[] strSubKey = SubKey.Split('//');

foreach (string strKeyName in strSubKey)

{

subKey = subKey.OpenSubKey(strKeyName);

}

string[] strValue = subKey.GetValueNames();

subKey.Close();

return strValue;

}

catch

{

return null;

}

}

}

类出来了，用它读写Mac地址就是小菜一碟了，下面是读写Mac地址的示例代码：

private void btnRead_Click(object sender, EventArgs e)

{

txtMAC1.Text = reg.ReadValue(YFReg.HKEY.HKEY_LOCAL_MACHINE, @"Comm/DM9CE1/Parms", "SoftwareMacAddress0");

txtMAC2.Text = reg.ReadValue(YFReg.HKEY.HKEY_LOCAL_MACHINE, @"Comm/DM9CE1/Parms", "SoftwareMacAddress1");

txtMAC3.Text = reg.ReadValue(YFReg.HKEY.HKEY_LOCAL_MACHINE, @"Comm/DM9CE1/Parms", "SoftwareMacAddress2");

txtMAC4.Text = reg.ReadValue(YFReg.HKEY.HKEY_LOCAL_MACHINE, @"Comm/DM9CE1/Parms", "SoftwareMacAddress3");

txtMAC5.Text = reg.ReadValue(YFReg.HKEY.HKEY_LOCAL_MACHINE, @"Comm/DM9CE1/Parms", "SoftwareMacAddress4");

txtMAC6.Text = reg.ReadValue(YFReg.HKEY.HKEY_LOCAL_MACHINE, @"Comm/DM9CE1/Parms", "SoftwareMacAddress5");

}

private void btnWrite_Click(object sender, EventArgs e)

{

int intRet = 0;

intRet += reg.WriteValue(YFReg.HKEY.HKEY_LOCAL_MACHINE, @"Comm/DM9CE1/Parms", "SoftwareMacAddress0", txtMAC1.Text);

intRet += reg.WriteValue(YFReg.HKEY.HKEY_LOCAL_MACHINE, @"Comm/DM9CE1/Parms", "SoftwareMacAddress1", txtMAC2.Text);

intRet += reg.WriteValue(YFReg.HKEY.HKEY_LOCAL_MACHINE, @"Comm/DM9CE1/Parms", "SoftwareMacAddress2", txtMAC3.Text);

intRet += reg.WriteValue(YFReg.HKEY.HKEY_LOCAL_MACHINE, @"Comm/DM9CE1/Parms", "SoftwareMacAddress3", txtMAC4.Text);

intRet += reg.WriteValue(YFReg.HKEY.HKEY_LOCAL_MACHINE, @"Comm/DM9CE1/Parms", "SoftwareMacAddress4", txtMAC5.Text);

intRet += reg.WriteValue(YFReg.HKEY.HKEY_LOCAL_MACHINE, @"Comm/DM9CE1/Parms", "SoftwareMacAddress5", txtMAC6.Text);

if (intRet > 0)

{

MessageBox.Show("更改失败");

}

}