首先需要定义几个结构(struct) ，便于DllImport作为返回参数调用。以下是代码：
CpuInfo.cs
using System;
using System.Configuration;
using System.Runtime.InteropServices;
/// <summary>
/// 定义CPU的信息结构
/// </summary>
[StructLayout(LayoutKind.Sequential)]
public struct CpuInfo
...{
/// <summary>
/// OEM ID
/// </summary>
public uint dwOemId;
/// <summary>
/// 页面大小
/// </summary>
public uint dwPageSize;
public uint lpMinimumApplicationAddress;
public uint lpMaximumApplicationAddress;
public uint dwActiveProcessorMask;
/// <summary>
/// CPU个数
/// </summary>
public uint dwNumberOfProcessors;
/// <summary>
/// CPU类型
/// </summary>
public uint dwProcessorType;
public uint dwAllocationGranularity;
/// <summary>
/// CPU等级
/// </summary>
public uint dwProcessorLevel;
public uint dwProcessorRevision;
}
MemoryInfo.cs
using System;
using System.Configuration;
using System.Runtime.InteropServices;
/// <summary>
/// 定义内存的信息结构
/// </summary>
[StructLayout(LayoutKind.Sequential)]
public struct MemoryInfo
...{
/// <summary>
///
/// </summary>
public uint dwLength;
/// <summary>
/// 已经使用的内存
/// </summary>
public uint dwMemoryLoad;
/// <summary>
/// 总物理内存大小
/// </summary>
public uint dwTotalPhys;
/// <summary>
/// 可用物理内存大小
/// </summary>
public uint dwAvailPhys;
/// <summary>
/// 交换文件总大小
/// </summary>
public uint dwTotalPageFile;
/// <summary>
/// 可用交换文件大小
/// </summary>
public uint dwAvailPageFile;
/// <summary>
/// 总虚拟内存大小
/// </summary>
public uint dwTotalVirtual;
/// <summary>
/// 可用虚拟内存大小
/// </summary>
public uint dwAvailVirtual;
}
SystemTimeInfo.cs
using System;
using System.Configuration;
using System.Runtime.InteropServices;
/// <summary>
/// 定义系统时间的信息结构
/// </summary>
[StructLayout(LayoutKind.Sequential)]
public struct SystemTimeInfo
...{
/// <summary>
/// 年
/// </summary>
public ushort wYear;
/// <summary>
/// 月
/// </summary>
public ushort wMonth;
/// <summary>
/// 星期
/// </summary>
public ushort wDayOfWeek;
/// <summary>
/// 天
/// </summary>
public ushort wDay;
/// <summary>
/// 小时
/// </summary>
public ushort wHour;
/// <summary>
/// 分钟
/// </summary>
public ushort wMinute;
/// <summary>
/// 秒
/// </summary>
public ushort wSecond;
/// <summary>
/// 毫秒
/// </summary>
public ushort wMilliseconds;
}
另外还定义了一个调用类SystemInfo.cs，代码如下：
using System;
using System.Configuration;
using System.Runtime.InteropServices;
using System.Management;
using System.Text;
/// <summary>
/// SystemInfo 的摘要说明
/// </summary>
public class SystemInfo
...{
private const int CHAR_COUNT = 128;
public SystemInfo()
...{
}
[DllImport("kernel32")]
private static extern void GetWindowsDirectory(StringBuilder WinDir, int count);
[DllImport("kernel32")]
private static extern void GetSystemDirectory(StringBuilder SysDir, int count);
[DllImport("kernel32")]
private static extern void GetSystemInfo(ref CpuInfo cpuInfo);
[DllImport("kernel32")]
private static extern void GlobalMemoryStatus(ref MemoryInfo memInfo);
[DllImport("kernel32")]
private static extern void GetSystemTime(ref SystemTimeInfo sysInfo);
/// <summary>
/// 查询CPU编号
/// </summary>
/// <returns></returns>
public string GetCpuId()
...{
ManagementClass mClass = new ManagementClass("Win32_Processor");
ManagementObjectCollection moc = mClass.GetInstances();
string cpuId=null;
foreach (ManagementObject mo in moc)
...{
cpuId = mo.Properties["ProcessorId"].Value.ToString();
break;
}
return cpuId;
}
/// <summary>
/// 查询硬盘编号
/// </summary>
/// <returns></returns>
public string GetMainHardDiskId()
...{
ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win32_PhysicalMedia");
String hardDiskID=null;
foreach (ManagementObject mo in searcher.Get())
...{
hardDiskID = mo["SerialNumber"].ToString().Trim();
break;
}
return hardDiskID;
}
/// <summary>
/// 获取Windows目录
/// </summary>
/// <returns></returns>
public string GetWinDirectory()
...{
StringBuilder sBuilder = new StringBuilder(CHAR_COUNT);
GetWindowsDirectory(sBuilder, CHAR_COUNT);
return sBuilder.ToString();
}
/// <summary>
/// 获取系统目录
/// </summary>
/// <returns></returns>
public string GetSysDirectory()
...{
StringBuilder sBuilder = new StringBuilder(CHAR_COUNT);
GetSystemDirectory(sBuilder, CHAR_COUNT);
return sBuilder.ToString();
}
/// <summary>
/// 获取CPU信息
/// </summary>
/// <returns></returns>
public CpuInfo GetCpuInfo()
...{
CpuInfo cpuInfo = new CpuInfo();
GetSystemInfo(ref cpuInfo);
return cpuInfo;
}
/// <summary>
/// 获取系统内存信息
/// </summary>
/// <returns></returns>
public MemoryInfo GetMemoryInfo()
...{
MemoryInfo memoryInfo = new MemoryInfo();
GlobalMemoryStatus(ref memoryInfo);
return memoryInfo;
}
/// <summary>
/// 获取系统时间信息
/// </summary>
/// <returns></returns>
public SystemTimeInfo GetSystemTimeInfo()
...{
SystemTimeInfo systemTimeInfo = new SystemTimeInfo();
GetSystemTime(ref systemTimeInfo);
return systemTimeInfo;
}
/// <summary>
/// 获取系统名称
/// </summary>
/// <returns></returns>
public string GetOperationSystemInName()
...{
OperatingSystem os = System.Environment.OSVersion;
string osName = "UNKNOWN";
switch (os.Platform)
...{
case PlatformID.Win32Windows:
switch (os.Version.Minor)
...{
case 0: osName = "Windows 95"; break;
case 10: osName = "Windows 98"; break;
case 90: osName = "Windows ME"; break;
}
break;
case PlatformID.Win32NT:
switch (os.Version.Major)
...{
case 3: osName = "Windws NT 3.51"; break;
