FDK/コード/00.共通/COS.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using System.Text;
   4 using System.Management;
   5
   6 namespace FDK
   7 {
   8         public static class COS
   9         {
  10                 /// <summary>
  11                 /// OSがXP以前ならfalse, Vista以降ならtrueを返す
  12                 /// </summary>
  13                 /// <returns></returns>
  14                 public static bool bIsVistaOrLater()
  15                 {
  16                         return bCheckOSVersion(6, 0);
  17                 }
  18                 /// <summary>
  19                 /// OSがVista以前ならfalse, Win7以降ならtrueを返す
  20                 /// </summary>
  21                 /// <returns></returns>
  22                 public static bool bIsWin7OrLater()
  23                 {
  24                         return bCheckOSVersion(6, 1);
  25                 }
  26                 /// <summary>
  27                 /// OSがWin7以前ならfalse, Win8以降ならtrueを返す
  28                 /// </summary>
  29                 /// <returns></returns>
  30                 public static bool bIsWin8OrLater()
  31                 {
  32                         return bCheckOSVersion(6, 2);
  33                 }
  34                 /// <summary>
  35                 /// OSがWin10以前ならfalse, Win10以降ならtrueを返す
  36                 /// </summary>
  37                 /// <returns></returns>
  38                 public static bool bIsWin10OrLater()
  39                 {
  40                         return bCheckOSVersion(10, 0);
  41                 }
  42                 /// <summary>
  43                 /// OSがWin10以降、かつ指定build以降ならtrueを返す
  44                 /// </summary>
  45                 /// <returns></returns>
  46                 public static bool bIsWin10OrLater(WIN10BUILD build)
  47                 {
  48                         if (bCheckOSVersion(10, 0))
  49                         {
  50                                 if ( GetWin10BuildNumber() >= build )
  51                                 {
  52                                         return true;
  53                                 }
  54                                 else
  55                                 {
  56                                         return false;
  57                                 }
  58                         }
  59                         else
  60                         {
  61                                 return false;
  62                         };
  63                 }
  64
  65
  66                 /// <summary>
  67                 /// 指定のOSバージョン以上であればtrueを返す
  68                 /// </summary>
  69                 private static bool bCheckOSVersion(int major, int minor)
  70                 {
  71                         //プラットフォームの取得
  72                         //System.OperatingSystem os = System.Environment.OSVersion;
  73                         //if (os.Platform != PlatformID.Win32NT)      // NT系でなければ、XP以前か、PC Windows系以外のOS。
  74                         //{
  75                         //      return false;
  76                         //}
  77                         //var mmb = tpGetOSVersion();
  78                         int _major, _minor, _build;
  79                         tpGetOSVersion(out _major, out _minor, out _build);
  80
  81                         //if (os.Version.Major >= major && os.Version.Minor >= minor)
  82                         if (_major > major)
  83                         {
  84                                 return true;
  85                         }
  86                         else if (_major == major && _minor >= minor)
  87                         {
  88                                 return true;
  89                         }
  90                         else
  91                         {
  92                                 return false;
  93                         }
  94                 }
  95
  96
  97                 //public static (int major, int minor, int build) tpGetOSVersion()
  98                 public static void tpGetOSVersion(out int major, out int minor, out int build)
  99                 {
 100                         //var result = (major: 0, minor: 0, build: 0);
 101                         major = 0;
 102                         minor = 0;
 103                         build = 0;
 104
 105                         System.Management.ManagementClass mc =
 106                                 new System.Management.ManagementClass("Win32_OperatingSystem");
 107                         System.Management.ManagementObjectCollection moc = mc.GetInstances();
 108
 109                         foreach (System.Management.ManagementObject mo in moc)
 110                         {
 111                                 string ver = mo["Version"].ToString();
 112                                 string[] majorminor = ver.Split(new char[] { '.' }, StringSplitOptions.None);
 113
 114                                 major = Convert.ToInt32(majorminor[0]);
 115                                 minor = Convert.ToInt32(majorminor[1]);
 116                                 build = Convert.ToInt32(mo["BuildNumber"]);
 117
 118                                 break;  // 1回ループで終了(でいいよね)
 119                         }
 120                         moc.Dispose();
 121                         mc.Dispose();
 122
 123                         //return result;
 124                 }
 125                 public enum WIN10BUILD : int
 126                 {
 127                         TH1 = 10240,    // 1507:
 128                         TH2 = 10586,    // 1511: November Update
 129                         RS1 = 14393,    // 1607: Anniversary Update
 130                         RS2 = 15063,    // 1703: Creators Update
 131                         RS3 = 16299,    // 1709: Fall Creators Update
 132                         RS4 = 17134,    // 1803: April 2018 Update
 133             RS5 = 17763,        // 1809: October 2018 Update
 134             _19H1 = 18362,      // 1903: May 2019 Update
 135                         UNKNOWN  = -1,
 136                         NOTWIN10 = 0
 137                 }
 138                 public static WIN10BUILD GetWin10BuildNumber()
 139                 {
 140                         WIN10BUILD ret = WIN10BUILD.UNKNOWN;
 141
 142                         //var mmb = tpGetOSVersion();
 143                         int major, minor, build;
 144                         tpGetOSVersion(out major, out minor, out build);
 145
 146                         if (major != 10)
 147                         {
 148                                 ret = WIN10BUILD.NOTWIN10;
 149                         }
 150                         else
 151                         {
 152                                 ret = (WIN10BUILD)build;
 153                         }
 154
 155                         return ret;
 156                 }
 157         }
 158 }