C # 64-bit system registry read and write

64-bit system, there is a difference in reading, there is no problem when writing. The code here is generic and already internally determines the number of bits in the current system.

1     /// <summary>2     ///Registration Form3     /// </summary>4      Public classRegistryKey645     {6         #regionStatic7         StaticIntPtr gethivehandle (registryhive hive)8         {9IntPtr Preexistinghandle =IntPtr.Zero;Ten  OneIntPtr HKEY_CLASSES_ROOT =NewINTPTR (-2147483648); AINTPTR HKEY_CURRENT_USER =NewINTPTR (-2147483647); -INTPTR HKEY_LOCAL_MACHINE =NewINTPTR (-2147483646); -IntPtr HKEY_USERS =NewINTPTR (-2147483645); theIntPtr Hkey_performance_data =NewINTPTR (-2147483644); -IntPtr Hkey_current_config =NewINTPTR (-2147483643); -IntPtr Hkey_dyn_data =NewINTPTR (-2147483642); -             Switch(Hive) +             { -                  CaseRegistryHive.ClassesRoot:preexistingHandle = HKEY_CLASSES_ROOT; Break; +                  CaseRegistryHive.CurrentUser:preexistingHandle = HKEY_CURRENT_USER; Break; A                  CaseRegistryHive.LocalMachine:preexistingHandle = HKEY_LOCAL_MACHINE; Break; at                  CaseRegistryHive.Users:preexistingHandle = HKEY_USERS; Break; -                  CaseRegistryHive.PerformanceData:preexistingHandle = Hkey_performance_data; Break; -                  CaseRegistryHive.CurrentConfig:preexistingHandle = Hkey_current_config; Break; -                  CaseRegistryHive.DynData:preexistingHandle = Hkey_dyn_data; Break; -             } -             returnPreexistinghandle; in         } -         #endregion to  +         #regionStructure -          PublicRegistryKey64 (registryhive hive, Registryview view) the         { *              This. View =view; $              This. Hive =Hive;Panax Notoginseng              This. subkey =""; -Roothandle =NewSaferegistryhandle (Gethivehandle (Hive),true);//get the security handle of the root node the         } +          PublicRegistryKey64 (registryhive hive) A         { the              This. View = Environment.is64bitoperatingsystem?RegistryView.Registry64:RegistryView.Registry32; +              This. Hive =Hive; -              This. subkey =""; $Roothandle =NewSaferegistryhandle (Gethivehandle (Hive),true);//get the security handle of the root node $         } -         #endregion -  the         #regionVariable -Saferegistryhandle Roothandle =NULL;//handle to the top-level nodeWuyiRegistryKey Subkeyhandle =NULL;//handle of the current subkey the          -         #endregion Wu  -         #regionProperty About         /// <summary> $         ///Current Path -         /// </summary> -          Public stringsubkey {Get;Private Set; } -         /// <summary> A         ///top-level path +         /// </summary> the          PublicRegistryHive Hive {Get;Private Set; } -         /// <summary> $         ///view mode the         /// </summary> the          PublicRegistryview View {Get;Private Set; } the         /// <summary> the         ///Internal system registry Information -         /// </summary> in          PublicRegistryKey RegistryKey {Get{return  This. subkeyhandle?? Registrykey.fromhandle ( This. Roothandle, This. View); } } the         #endregion the         /// <summary> About         ///for 32-bit program Access 64-bit registry the         /// </summary> the         /// <param name= "ValueName" >Item Name</param> the         /// <returns>value</returns> +          Public ObjectGetValue (stringvalueName) -         { the             return  This. Subkeyhandle.getvalue (ValueName);//gets the value of the specified item under the keyBayi         } the         /// <summary> the         ///Open Subkey -         /// </summary> -         /// <param name= "SubName" >subkey Name</param> the          Public voidOpenkey (stringsubname) the         { theRegistryKey key = This. Registrykey.opensubkey (subname); the             if(key==NULL) -key= This. Registrykey.createsubkey (subname); the              This. Subkeyhandle =key; the              This. subkey + ="\\"+SubName; the         }94         /// <summary> the         ///64-bit registry for 32-bit program settings the         /// </summary> the         /// <param name= "ValueName" >Item Name</param>98         /// <param name= "value" >value</param> About         /// <param name= "Kind" >value type</param> -          Public voidSetValue (stringValueName,Objectvalue, RegistryValueKind kind)101         {102              This. Subkeyhandle.setvalue (ValueName, value, kind);103         }104}

How to use

1             New DTPM. Util.Configs.RegistryKey64 (registryhive.localmachine); 2             Key. Openkey (@ "software\xxx\xxx"); 3             string Path = key. GetValue ("configpath"asstring; 4             Key. Registrykey.close ();

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C # 64-bit system registry read and write