摘要
有时需要获取电脑的相关信息。这时可以通过调用windows api的方式，进行获取。
方法
可以通过在powershell中 通过下面的命令进行查询，然后可以通过c#调用获取需要的信息。
gwmi + windows api
如图所示
对应的c#代码为
/// <summary> /// 获取硬盘容量 /// </summary> public string GetDiskSize() { string result = string.Empty; StringBuilder sb = new StringBuilder(); try { string hdId = string.Empty; ManagementClass hardDisk = new ManagementClass(WindowsAPIType.win32_DiskDrive.ToString()); ManagementObjectCollection hardDiskC = hardDisk.GetInstances(); foreach (ManagementObject m in hardDiskC) { long capacity = Convert.ToInt64(m[WindowsAPIKeys.Size.ToString()].ToString()); sb.Append(CommonUtlity.ToGB(capacity, 1000.0) + "+"); } result = sb.ToString().TrimEnd('+'); } catch { } return result; }
API和Keys枚举
/// <summary> /// windows api 名称 /// </summary> public enum WindowsAPIType { /// <summary> /// 内存 /// </summary> Win32_PhysicalMemory, /// <summary> /// cpu /// </summary> Win32_Processor, /// <summary> /// 硬盘 /// </summary> win32_DiskDrive, /// <summary> /// 电脑型号 /// </summary> Win32_ComputerSystemProduct, /// <summary> /// 分辨率 /// </summary> Win32_DesktopMonitor, /// <summary> /// 显卡 /// </summary> Win32_VideoController, /// <summary> /// 操作系统 /// </summary> Win32_OperatingSystem }
public enum WindowsAPIKeys { /// <summary> /// 名称 /// </summary> Name, /// <summary> /// 显卡芯片 /// </summary> VideoProcessor, /// <summary> /// 显存大小 /// </summary> AdapterRAM, /// <summary> /// 分辨率宽 /// </summary> ScreenWidth, /// <summary> /// 分辨率高 /// </summary> ScreenHeight, /// <summary> /// 电脑型号 /// </summary> Version, /// <summary> /// 硬盘容量 /// </summary> Size, /// <summary> /// 内存容量 /// </summary> Capacity, /// <summary> /// cpu核心数 /// </summary> NumberOfCores }
Computer类
/// <summary> /// 电脑信息类 单例 /// </summary> public class Computer { private static Computer _instance; private static readonly object _lock = new object(); private Computer() { } public static Computer CreateComputer() { if (_instance == null) { lock (_lock) { if (_instance == null) { _instance = new Computer(); } } } return _instance; } /// <summary> /// 查找cpu的名称，主频, 核心数 /// </summary> /// <returns></returns> public Tuple<string, string> GetCPU() { Tuple<string, string> result = null; try { string str = string.Empty; ManagementClass mcCPU = new ManagementClass(WindowsAPIType.Win32_Processor.ToString()); ManagementObjectCollection mocCPU = mcCPU.GetInstances(); foreach (ManagementObject m in mocCPU) { string name = m[WindowsAPIKeys.Name.ToString()].ToString(); string[] parts = name.Split('@'); result = new Tuple<string, string>(parts[0].Split('-')[0] + "处理器", parts[1]); break; } } catch { } return result; } /// <summary> /// 获取cpu核心数 /// </summary> /// <returns></returns> public string GetCPU_Count() { string str = "查询失败"; try { int coreCount = 0; foreach (var item in new System.Management.ManagementObjectSearcher("Select * from " +
WindowsAPIType.Win32_Processor.ToString()).Get()) { coreCount += int.Parse(item[WindowsAPIKeys.NumberOfCores.ToString()].ToString()); } if (coreCount == 2) { return "双核"; } str = coreCount.ToString() + "核"; } catch { } return str; } /// <summary> /// 获取系统内存大小 /// </summary> /// <returns>内存大小（单位M）</returns> public string GetPhisicalMemory() { ManagementObjectSearcher searcher = new ManagementObjectSearcher(); //用于查询一些如系统信息的管理对象 searcher.Query = new SelectQuery(WindowsAPIType.Win32_PhysicalMemory.ToString(), "",
new string[] { WindowsAPIKeys.Capacity.ToString() });//设置查询条件 ManagementObjectCollection collection = searcher.Get(); //获取内存容量 ManagementObjectCollection.ManagementObjectEnumerator em = collection.GetEnumerator(); long capacity = 0; while (em.MoveNext()) { ManagementBaseObject baseObj = em.Current; if (baseObj.Properties[WindowsAPIKeys.Capacity.ToString()].Value != null) { try { capacity += long.Parse(baseObj.Properties[WindowsAPIKeys.Capacity.ToString()].Value.ToString()); } catch { return "查询失败"; } } } return CommonUtlity.ToGB((double)capacity, 1024.0); } /// <summary> /// 获取硬盘容量 /// </summary> public string GetDiskSize() { string result = string.Empty; StringBuilder sb = new StringBuilder(); try { string hdId = string.Empty; ManagementClass hardDisk = new ManagementClass(WindowsAPIType.win32_DiskDrive.ToString()); ManagementObjectCollection hardDiskC = hardDisk.GetInstances(); foreach (ManagementObject m in hardDiskC) { long capacity = Convert.ToInt64(m[WindowsAPIKeys.Size.ToString()].ToString()); sb.Append(CommonUtlity.ToGB(capacity, 1000.0) + "+"); } result = sb.ToString().TrimEnd('+'); } catch { } return result; } /// <summary> /// 电脑型号 /// </summary> public string GetVersion() { string str = "查询失败"; try { string hdId = string.Empty; ManagementClass hardDisk = new ManagementClass(WindowsAPIType.Win32_ComputerSystemProduct.ToString()); ManagementObjectCollection hardDiskC = hardDisk.GetInstances(); foreach (ManagementObject m in hardDiskC) { str = m[WindowsAPIKeys.Version.ToString()].ToString(); break; } } catch { } return str; } /// <summary> /// 获取分辨率 /// </summary> public string GetFenbianlv() { string result = "1920*1080"; try { string hdId = string.Empty; ManagementClass hardDisk = new ManagementClass(WindowsAPIType.Win32_DesktopMonitor.ToString()); ManagementObjectCollection hardDiskC = hardDisk.GetInstances(); foreach (ManagementObject m in hardDiskC) { result = m[WindowsAPIKeys.ScreenWidth.ToString()].ToString() + "*" +
m[WindowsAPIKeys.ScreenHeight.ToString()].ToString(); break; } } catch { } return result; } /// <summary> /// 显卡 芯片,显存大小 /// </summary> public Tuple<string, string> GetVideoController() { Tuple<string, string> result = null; try { ManagementClass hardDisk = new ManagementClass(WindowsAPIType.Win32_VideoController.ToString()); ManagementObjectCollection hardDiskC = hardDisk.GetInstances(); foreach (ManagementObject m in hardDiskC) { result = new Tuple<string, string>(m[WindowsAPIKeys.VideoProcessor.ToString()].ToString()
.Replace("Family", ""), CommonUtlity.ToGB(Convert.ToInt64(m[WindowsAPIKeys.AdapterRAM.ToString()].ToString()), 1024.0)); break; } } catch { } return result; } /// <summary> /// 操作系统版本 /// </summary> public string GetOS_Version() { string str = "Windows 10"; try { string hdId = string.Empty; ManagementClass hardDisk = new ManagementClass(WindowsAPIType.Win32_OperatingSystem.ToString()); ManagementObjectCollection hardDiskC = hardDisk.GetInstances(); foreach (ManagementObject m in hardDiskC) { str = m[WindowsAPIKeys.Name.ToString()].ToString().Split('|')[0].Replace("Microsoft", ""); break; } } catch { } return str; } }
这里只是枚举了部分api，有兴趣的可以查看其它的windows api 并通过power shell查看，然后转化为c# 代码即可。
这里需要注意，硬盘容量在转化的时候需要除以1000，而不是1024.但内存是需要除以1024的，这点需要注意。
转化方法：
/// <summary> /// 将字节转换为GB /// </summary> /// <param name="size">字节值</param> /// <param name="mod">除数，硬盘除以1000，内存除以1024</param> /// <returns></returns> public static string ToGB(double size, double mod) { String[] units = new String[] { "B", "KB", "MB", "GB", "TB", "PB" }; int i = 0; while (size >= mod) { size /= mod; i++; } return Math.Round(size) + units[i]; }