Программирование на Visual C++. Архив рассылки

 [in] ULONG cRequired,
 [in,unique,size_is(cRequired)] CATID rgcatidReq[],
 [out] IEnumCLSID** ppenumClsid);
 [local]
 HRESULT IsClassOfCategories([in] REFCLSID rclsid,
 [in] ULONG cImplemented,
 [in,size_is(cImplemented)] CATID rgcatidImpl[],
 [in] ULONG cRequired,
 [in,size_is(cRequired)] CATID rgcatidReq[]);
 [call_as(IsClassOfCategories)]
 HRESULT RemoteIsClassOfCategories([in] REFCLSID rclsid,
 [in] ULONG cImplemented,
 [in,unique,size_is(cImplemented)] CATID rgcatidImpl[],
 [in] ULONG cRequired,
 [in,unique,size_is(cRequired)] CATID rgcatidReq[]);
 HRESULT EnumImplCategoriesOfClass([in] REFCLSID rclsid,
 [out] IEnumCATID** ppenumCatid);
 HRESULT EnumReqCategoriesOfClass([in] REFCLSID rclsid,
 [out] IEnumCATID** ppenumCatid);
}

C#

[ComImport, Guid("0002E000-0000-0000-C000-000000000046"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
 public interface IEnumGUID {
 [PreserveSig]
 int Next([In] uint celt,
 [Out, MarshalAs(UnmanagedType.LPArray, SizeParamIndex=0)] Guid[] rgelt,
 [Out] out uint pceltFetched);
 [PreserveSig]
 int Skip([In] uint celt);
 void Reset;
 [return : MarshalAs(UnmanagedType.Interface)]
 IEnumGUID Clone;
};

[ComImport, Guid("0002E011-0000-0000-C000-000000000046"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
public interface IEnumCATEGORYINFO {
 [PreserveSig]
 int Next([In] uint celt,
 [Out, MarshalAs(UnmanagedType.LPArray, SizeParamIndex=0)] CATEGORYINFO[] rgelt,
 [Out] out uint pceltFetched);
 [PreserveSig]
 int Skip([In] uint celt);
 void Reset;
 [return : MarshalAs(UnmanagedType.Interface)]
 IEnumCATEGORYINFO Clone;
};

[ComImport, Guid("0002E013-0000-0000-C000-000000000046"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
public interface ICatInformation {
 [return : MarshalAs(UnmanagedType.Interface)]
 IEnumCATEGORYINFO EnumCategories([In] uint lcid);
 [return : MarshalAs(UnmanagedType.LPWStr)]
 String GetCategoryDesc([In] ref Guid rcatid, [In] uint lcid);
 [return : MarshalAs(UnmanagedType.Interface)]
 IEnumGUID EnumClassesOfCategories([In] uint cImplemented,
 [In, MarshalAs(UnmanagedType.LPArray, SizeParamIndex=0)] Guid[] rgcatidImpl,
 [In] uint cRequired,
 [In, MarshalAs(UnmanagedType.LPArray, SizeParamIndex=2)] Guid[] rgcatidReq);
 [return : MarshalAs(UnmanagedType.Interface)]
 IEnumGUID RemoteEnumClassesOfCategories([In] uint cImplemented,
 [In, MarshalAs(UnmanagedType.LPArray, SizeParamIndex=0)] Guid[] rgcatidImpl,
 [In] uint cRequired,
 [In, MarshalAs(UnmanagedType.LPArray, SizeParamIndex=2)] Guid[] rgcatidReq);
 [PreserveSig]
 int IsClassOfCategories([In] ref Guid rclsid,
 [In] uint cImplemented,
 [In, MarshalAs(UnmanagedType.LPArray, SizeParamIndex=0)] Guid[] rgcatidImpl,
 [In] uint cRequired,
 [In, MarshalAs(UnmanagedType.LPArray, SizeParamIndex=2)] Guid[] rgcatidReq);
 [PreserveSig]
 int RemoteIsClassOfCategories([In] ref Guid rclsid,
 [In] uint cImplemented,
 [In, MarshalAs(UnmanagedType.LPArray, SizeParamIndex=0)] Guid[] rgcatidImpl,
 [In] uint cRequired,
 [In, MarshalAs(UnmanagedType.LPArray, SizeParamIndex=2)] Guid[] rgcatidReq);
 [return : MarshalAs(UnmanagedType.Interface)]
 IEnumGUID EnumImplCategoriesOfClass([In] ref Guid rclsid);
 [return : MarshalAs(UnmanagedType.Interface)]
 IEnumGUID EnumReqCategoriesOfClass([In] ref Guid rclsid);
};

Описание классов

Для описания классов также используются атрибуты ComImport и Guid. Классы с атрибутом ComImport не могут иметь никаких данных и методов.

Пример описания класса

IDL

Описание отсутствует 

C#

[ComImport, Guid("0002E005-0000-0000-C000-000000000046")]
public class StdComponentCategoriesMgr{};

Пример использования класса

C#

using System;
using System.ComponentModel;
using System.Runtime.InteropServices;
using ComCatWrapper;

public class Test {
 static void Main {
 StdComponentCategoriesMgr mgr = new StdComponentCategoriesMgr;
 ICatInformation catInfoItf = (ICatInformation)mgr;
 IEnumCATEGORYINFO enumCInfoItf = сatInfoItf.EnumCategories(0);