na-get-lib/NaGet.InteropServices/ComDirectAccess.cs

   1 using System;\r
   2 using System.Runtime.InteropServices;\r
   3 using System.Runtime.InteropServices.ComTypes;\r
   4 \r
   5 namespace NaGet.InteropServices\r
   6 {\r
   7         /// <summary>\r
   8         /// COMをComInteropを経由せずにいじるための関数集\r
   9         /// </summary>\r
  10         public sealed class ComDirectAccess\r
  11         {\r
  12                 [DllImport("ole32.dll")]\r
  13                 public static extern int CoInitialize(IntPtr pvReserved);\r
  14                 \r
  15                 [DllImport("ole32.dll")]\r
  16                 public static extern void CoUninitialize();\r
  17                 \r
  18                 [DllImport("ole32.dll", ExactSpelling=true, PreserveSig=false)]\r
  19                 [return: MarshalAs(UnmanagedType.Interface)]\r
  20                 static extern object CoCreateInstance(\r
  21                         [In, MarshalAs(UnmanagedType.LPStruct)] Guid rclsid,\r
  22                         [MarshalAs(UnmanagedType.IUnknown)] object pUnkOuter,\r
  23                         CLSCTX dwClsContext,\r
  24                         [In, MarshalAs(UnmanagedType.LPStruct)] Guid riid);\r
  25                 \r
  26                 [Flags()]\r
  27                 public enum CLSCTX : uint\r
  28                 {\r
  29                     CLSCTX_INPROC_SERVER    = 0x1,\r
  30                     CLSCTX_INPROC_HANDLER   = 0x2,\r
  31                     CLSCTX_LOCAL_SERVER     = 0x4,\r
  32                     CLSCTX_INPROC_SERVER16  = 0x8,\r
  33                     CLSCTX_REMOTE_SERVER    = 0x10,\r
  34                     CLSCTX_INPROC_HANDLER16 = 0x20,\r
  35                     CLSCTX_RESERVED1        = 0x40,\r
  36                     CLSCTX_RESERVED2        = 0x80,\r
  37                     CLSCTX_RESERVED3        = 0x100,\r
  38                     CLSCTX_RESERVED4        = 0x200,\r
  39                     CLSCTX_NO_CODE_DOWNLOAD = 0x400,\r
  40                     CLSCTX_RESERVED5        = 0x800,\r
  41                     CLSCTX_NO_CUSTOM_MARSHAL    = 0x1000,\r
  42                     CLSCTX_ENABLE_CODE_DOWNLOAD = 0x2000,\r
  43                     CLSCTX_NO_FAILURE_LOG       = 0x4000,\r
  44                     CLSCTX_DISABLE_AAA      = 0x8000,\r
  45                     CLSCTX_ENABLE_AAA       = 0x10000,\r
  46                     CLSCTX_FROM_DEFAULT_CONTEXT = 0x20000,\r
  47                     CLSCTX_INPROC           = CLSCTX_INPROC_SERVER|CLSCTX_INPROC_HANDLER,\r
  48                     CLSCTX_SERVER           = CLSCTX_INPROC_SERVER|CLSCTX_LOCAL_SERVER|CLSCTX_REMOTE_SERVER,\r
  49                     CLSCTX_ALL              = CLSCTX_SERVER|CLSCTX_INPROC_HANDLER,\r
  50                 }\r
  51                 \r
  52                 /// <summary>\r
  53                 /// 初期化禁止\r
  54                 /// </summary>\r
  55                 private ComDirectAccess()\r
  56                 {\r
  57                 }\r
  58                 \r
  59                 /// <summary>\r
  60                 /// COMオブジェクトを生成する。CoCreateInstanceのラッパメソッド\r
  61                 /// </summary>\r
  62                 /// <param name="rclsid">オブジェクトのCLSID</param>\r
  63                 /// <param name="pUnkOuter">アグリゲートオブジェクト</param>\r
  64                 /// <param name="dwClsContext">コンテキスト</param>\r
  65                 /// <param name="riid">オブジェクトのIID</param>\r
  66                 /// <returns>生成されたCOMオブジェクト</returns>\r
  67                 public static object CreateInstance(Guid rclsid, object pUnkOuter, CLSCTX dwClsContext, Guid riid)\r
  68                 {\r
  69                         return CoCreateInstance(rclsid, pUnkOuter, dwClsContext, riid);\r
  70                 }\r
  71                 \r
  72                 /// <summary>\r
  73                 /// COMオブジェクトを生成する。COMオブジェクトの型はテンプレートTから自動取得・キャストされる。\r
  74                 /// </summary>\r
  75                 /// <param name="clsid">オブジェクトのCLSID</param>\r
  76                 /// <param name="dwClsContext">コンテキスト</param>\r
  77                 /// <returns>生成されたCOMオブジェクト</returns>\r
  78                 public static T CreateInstance<T>(Guid clsid, CLSCTX dwClsContext)\r
  79                 {\r
  80                         Guid riid = new Guid(((GuidAttribute) Attribute.GetCustomAttribute(typeof(T), typeof(GuidAttribute))).Value);\r
  81                         return (T) CreateInstance(clsid, null, dwClsContext, riid);\r
  82                 }\r
  83         }\r
  84 }\r