C# 无法查询CSDVersion的值
我遵循这个C#示例,能够查询一些注册表值,但不是所有注册表值: 我可以可靠地获取注册表项,如CurrentVersion、ProductName等。但当我尝试获取CSD版本时,它失败了 我在.NET2.0和.NET4.0中编译过,但结果相同。我已尝试查询本地计算机和远程计算机。两者都可以返回其他注册表值,但不能返回此特定值 两者都是x64机器(Windows7Ultimate和Windows2008R2),因此无论哪种方式都不应该在访问注册表方面有任何问题 我发现一件奇怪的事情是EnumValues函数只返回17个值,而在这个特定的注册表项中有21个值。在缺失的四个版本中,CSDVersion是其中之一 我很好奇,是否有人知道为什么这四个值不会回来,但其余的都会回来? 缺少值:C# 无法查询CSDVersion的值,c#,C#,我遵循这个C#示例,能够查询一些注册表值,但不是所有注册表值: 我可以可靠地获取注册表项,如CurrentVersion、ProductName等。但当我尝试获取CSD版本时,它失败了 我在.NET2.0和.NET4.0中编译过,但结果相同。我已尝试查询本地计算机和远程计算机。两者都可以返回其他注册表值,但不能返回此特定值 两者都是x64机器(Windows7Ultimate和Windows2008R2),因此无论哪种方式都不应该在访问注册表方面有任何问题 我发现一件奇怪的事情是EnumVal
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using System;
using System.Management;
using System.Management.Instrumentation;
namespace GetCSDVersion
{
public enum RegHive : uint
{
HKEY_CLASSES_ROOT = 0x80000000,
HKEY_CURRENT_USER = 0x80000001,
HKEY_LOCAL_MACHINE = 0x80000002,
HKEY_USERS = 0x80000003,
HKEY_CURRENT_CONFIG = 0x80000005
}
public enum RegType
{
REG_SZ = 1,
REG_EXPAND_SZ,
REG_BINARY,
REG_DWORD,
REG_MULTI_SZ = 7
}
class Program
{
static void Main(string[] args)
{
const string strComputer = "localhost";
ConnectionOptions options = new ConnectionOptions();
options.Impersonation = ImpersonationLevel.Impersonate;
options.EnablePrivileges = true;
//options.Username = "";
//options.Password = "";
ManagementScope myScope = new ManagementScope("\\\\" + strComputer + "\\root\\default", options);
ManagementPath mypath = new ManagementPath("StdRegProv");
ManagementClass mc = new ManagementClass(myScope, mypath, null);
object oValue = GetValue(mc, RegHive.HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", "CSDVersion");
Console.WriteLine(oValue.ToString());
}
public static object GetValue(ManagementClass mc, RegHive hDefKey, string sSubKeyName, string sValueName)
{
RegType rType = GetValueType(mc, hDefKey, sSubKeyName, sValueName);
ManagementBaseObject inParams = mc.GetMethodParameters("GetStringValue");
inParams["hDefKey"] = hDefKey;
inParams["sSubKeyName"] = sSubKeyName;
inParams["sValueName"] = sValueName;
object oValue = null;
switch (rType)
{
case RegType.REG_SZ:
ManagementBaseObject outParams = mc.InvokeMethod("GetStringValue", inParams, null);
if (Convert.ToUInt32(outParams["ReturnValue"]) == 0)
{
oValue = outParams["sValue"];
}
else
{
// GetStringValue call failed
}
break;
case RegType.REG_EXPAND_SZ:
outParams = mc.InvokeMethod("GetExpandedStringValue", inParams, null);
if (Convert.ToUInt32(outParams["ReturnValue"]) == 0)
{
oValue = outParams["sValue"];
}
else
{
// GetExpandedStringValue call failed
}
break;
case RegType.REG_MULTI_SZ:
outParams = mc.InvokeMethod("GetMultiStringValue", inParams, null);
if (Convert.ToUInt32(outParams["ReturnValue"]) == 0)
{
oValue = outParams["sValue"];
}
else
{
// GetMultiStringValue call failed
}
break;
case RegType.REG_DWORD:
outParams = mc.InvokeMethod("GetDWORDValue", inParams, null);
if (Convert.ToUInt32(outParams["ReturnValue"]) == 0)
{
oValue = outParams["uValue"];
}
else
{
// GetDWORDValue call failed
}
break;
case RegType.REG_BINARY:
outParams = mc.InvokeMethod("GetBinaryValue", inParams, null);
if (Convert.ToUInt32(outParams["ReturnValue"]) == 0)
{
oValue = outParams["uValue"] as byte[];
}
else
{
// GetBinaryValue call failed
}
break;
}
return oValue;
}
public static RegType GetValueType(ManagementClass mc, RegHive hDefKey, string sSubKeyName, string sValueName)
{
ManagementBaseObject inParams = mc.GetMethodParameters("EnumValues");
inParams["hDefKey"] = hDefKey;
inParams["sSubKeyName"] = sSubKeyName;
ManagementBaseObject outParams = mc.InvokeMethod("EnumValues", inParams, null);
if (Convert.ToUInt32(outParams["ReturnValue"]) == 0)
{
string[] sNames = outParams["sNames"] as String[];
int[] iTypes = outParams["Types"] as int[];
for (int i = 0; i < sNames.Length; i++)
{
if (sNames[i] == sValueName)
{
return (RegType)iTypes[i];
}
}
// value not found
}
else
{
// EnumValues call failed
}
// Things have fallen apart and EnumValues didn't get us what we wanted so assume it's a string
return RegType.REG_SZ;
}
}
}
使用系统;
使用制度管理;
使用系统、管理、仪器;
命名空间GetCSDVersion
{
公共枚举注册表:uint
{
HKEY_类_根=0x8000000,
HKEY_当前_用户=0x8000001,
HKEY_本地_机器=0x8000002,
HKEY_用户=0x8000003,
HKEY_当前_配置=0x8000005
}
公共枚举RegType
{
REG_SZ=1,
REG_扩充_SZ,
REG_二进制文件,
雷格·德沃德,
REG_MULTI_SZ=7
}
班级计划
{
静态void Main(字符串[]参数)
{
常量字符串strComputer=“localhost”;
ConnectionOptions选项=新的ConnectionOptions();
options.Impersonation=ImpersonationLevel.Impersonate;
options.EnablePrivileges=true;
//选项。用户名=”;
//选项。密码=”;
ManagementScope myScope=new ManagementScope(“\\\\”+strComputer+“\\root\\default”,选项);
ManagementPath mypath=新的管理路径(“StdRegProv”);
ManagementClass mc=新的ManagementClass(myScope,mypath,null);
object oValue=GetValue(mc,RegHive.HKEY_LOCAL_MACHINE,“软件\\Microsoft\\Windows NT\\CurrentVersion”,“CSDVersion”);
Console.WriteLine(oValue.ToString());
}
公共静态对象GetValue(ManagementClass mc、RegHive hDefKey、字符串sSubKeyName、字符串sValueName)
{
RegType rType=GetValueType(mc、hDefKey、sSubKeyName、sValueName);
ManagementBaseObject inParams=mc.GetMethodParameters(“GetStringValue”);
inParams[“hDefKey”]=hDefKey;
inParams[“sSubKeyName”]=sSubKeyName;
inParams[“sValueName”]=sValueName;
对象oValue=null;
开关(rType)
{
case RegType.REG_SZ:
ManagementBaseObject outParams=mc.InvokeMethod(“GetStringValue”,inParams,null);
if(Convert.ToUInt32(输出参数[“ReturnValue”])==0)
{
oValue=输出参数[“sValue”];
}
其他的
{
//GetStringValue调用失败
}
打破
case RegType.REG_EXPAND_SZ:
outParams=mc.InvokeMethod(“GetExpandedStringValue”,inParams,null);
if(Convert.ToUInt32(输出参数[“ReturnValue”])==0)
{
oValue=输出参数[“sValue”];
}
其他的
{
//GetExpandedStringValue调用失败
}
打破
case RegType.REG_MULTI_SZ:
outParams=mc.InvokeMethod(“GetMultiStringValue”,inParams,null);
if(Convert.ToUInt32(输出参数[“ReturnValue”])==0)
{
oValue=输出参数[“sValue”];
}
其他的
{
//GetMultiStringValue调用失败
}
打破
case RegType.REG_DWORD:
outParams=mc.InvokeMethod(“GetDWORDValue”,inParams,null);
if(Convert.ToUInt32(输出参数[“ReturnValue”])==0)
{
oValue=输出参数[“U值”];
}
其他的
{
//GetDWORDValue调用失败
}
打破
case RegType.REG_二进制:
outParams=mc.InvokeMethod(“GetBinaryValue”,inParams,null);
if(Convert.ToUInt32(输出参数[“ReturnValue”])==0)
{
oValue=输出参数[“uValue”]作为字节[];
}
其他的
{
//GetBinaryValue调用失败
}
打破
}
返回椭圆形;
}
公共静态RegType GetValueType(管理类mc、RegHive hDefKey、字符串sSubKeyName