请问有没c++大佬帮忙看一下这个.idl，我想这个com的 CLSD 和IID是什么？

Question

idl文件，内容比较多，我删减了一些东西，不知道大佬可以从这里面看出哪个是 CLSD 和IID不。
有偿！！！有偿！！！有偿！！！很急

#define DISPID_NEWENUM -4

import "oaidl.idl";
import "ocidl.idl";

//==============================================================================
// Forward declarations.

interface OPCBrowser; 
interface OPCGroups;
interface OPCGroup;
interface OPCItems;
interface OPCItem;

//==============================================================================
// IOPCServerEvent


[
    object,
    dual,
    uuid(28E68F90-8D75-11d1-8DC3-3C302A000000),
    helpstring("OPCServer Events"),
    pointer_default(unique),
    oleautomation
]
interface IOPCServerEvent : IDispatch
{
    HRESULT ServerShutDown(
       [in,string] BSTR Reason
    );
};

//==============================================================================
// IOPCGroupsEvent

[
    object,
    dual,
    uuid(28E68F9C-8D75-11d1-8DC3-3C302A000000),
    helpstring("OPCGroups Event"),
    pointer_default(unique),
    oleautomation
]
interface IOPCGroupsEvent : IDispatch
{
    [helpstring("Event to update item data from any group")]
    HRESULT GlobalDataChange(
        [in] LONG                TransactionID,
        [in] LONG                GroupHandle,
        [in] LONG                NumItems,
        [in] SAFEARRAY(LONG)*    ClientHandles,
        [in] SAFEARRAY(VARIANT)* ItemValues,
        [in] SAFEARRAY(LONG)*    Qualities,
        [in] SAFEARRAY(DATE)*    TimeStamps
    );
};

//==============================================================================
// IOPCGroupsEvent

[
    object,
    dual,
    uuid(28E68F90-8D75-11d1-8DC3-3C302A000001),
    helpstring("OPCGroup Events"),
    pointer_default(unique),
    oleautomation
]
interface IOPCGroupEvent : IDispatch
{
    [helpstring("Event to notify when active data has changed")]
    HRESULT DataChange(
        [in] LONG                TransactionID,
        [in] LONG                NumItems,
        [in] SAFEARRAY(LONG)*    ClientHandles,
        [in] SAFEARRAY(VARIANT)* ItemValues,
        [in] SAFEARRAY(LONG)*    Qualities,
        [in] SAFEARRAY(DATE)*    TimeStamps
    );

    [helpstring("Event to update item data when a read request was completed")]
    HRESULT AsyncReadComplete(
        [in] LONG                TransactionID,
        [in] LONG                NumItems,
        [in] SAFEARRAY(LONG)*    ClientHandles,
        [in] SAFEARRAY(VARIANT)* ItemValues,
        [in] SAFEARRAY(LONG)*    Qualities,
        [in] SAFEARRAY(DATE)*    TimeStamps,
        [in] SAFEARRAY(LONG)*    Errors
    );

    [helpstring("Event to notify when a write request was completed")]
    HRESULT AsyncWriteComplete(
        [in] LONG             TransactionID,
        [in] LONG             NumItems,
        [in] SAFEARRAY(LONG)* ClientHandles,
        [in] SAFEARRAY(LONG)* Errors
    );

    [helpstring("Event to notify when a cancel transaction request was completed")]
    HRESULT AsyncCancelComplete(
        [in] LONG TransactionID
    );
};

//==============================================================================
// OPCAutomation

[
   uuid(28E68F91-8D75-11d1-8DC3-3C302A000000),
   version(1.0),
   helpstring("OPC DA Automation Wrapper 2.02")
]
library OPCAutomation
{
    importlib("stdole32.tlb");
    importlib("stdole2.tlb");

    //==========================================================================
    // Enumerations

    enum OPCNamespaceTypes 
    { 
        OPCHierarchical = 1, 
        OPCFlat
    };

    enum OPCDataSource 
    { 
        OPCCache = 1, 
        OPCDevice
    };

    enum OPCAccessRights 
    { 
        OPCReadable = 1, 
        OPCWritable
    };

    enum OPCServerState
    { 
        OPCRunning = 1, 
        OPCFailed,
        OPCNoconfig, 
        OPCSuspended,
        OPCTest, 
        OPCDisconnected 
    };


    //==========================================================================
    // IOPCAutoServer

    [
        object,
        dual,oleautomation,
        uuid(28E68F92-8D75-11d1-8DC3-3C302A000000),
        helpstring("OPCServer Object"),
        pointer_default(unique)
    ]
    interface IOPCAutoServer : IDispatch
    {
        //======================================================================
        // Properties

    };

    //==========================================================================
    // DIOPCServerEvent

    [
        uuid(28E68F93-8D75-11d1-8DC3-3C302A000000),
        nonextensible,
        helpstring("OPC Server Event")
    ]
    dispinterface DIOPCServerEvent
    {
        properties:
        methods:
        
        [id(1)] 
        void ServerShutDown(
            [in,string] BSTR Reason 
        );

    };

    //==========================================================================
    // OPCBrowser

    [
        object,
        dual, oleautomation,
        uuid(28E68F94-8D75-11d1-8DC3-3C302A000000),
        helpstring("OPC Browser"),
        pointer_default(unique)
    ]
    interface OPCBrowser : IDispatch
    {
        
    };

    //==========================================================================
    // IOPCGroups

    [
        object,
        dual,oleautomation,
        uuid(28E68F95-8D75-11d1-8DC3-3C302A000000),
        helpstring("Collection of OPC Group objects"),
        pointer_default(unique)
    ]
    interface IOPCGroups : IDispatch
    {
        //======================================================================
        // Properties

    };

    //==========================================================================
    // DIOPCGroupsEvent

    [
        uuid(28E68F9D-8D75-11d1-8DC3-3C302A000000),
        nonextensible,
        helpstring("OPC Groups Event")
    ]
    dispinterface DIOPCGroupsEvent
    {
        properties:
        methods:
        
        [id(1)] 
        void GlobalDataChange(
            [in] LONG                TransactionID,
            [in] LONG                GroupHandle,
            [in] LONG                NumItems,
            [in] SAFEARRAY(LONG)  *  ClientHandles,
            [in] SAFEARRAY(VARIANT)* ItemValues,
            [in] SAFEARRAY(LONG)*    Qualities,
            [in] SAFEARRAY(DATE)*    TimeStamps
        );
    };

    //==========================================================================
    // IOPCGroup

    [
        object,
        dual,oleautomation,
        uuid(28E68F96-8D75-11d1-8DC3-3C302A000000),
        helpstring("OPC Group Object"),
        pointer_default(unique)
    ]
    interface IOPCGroup : IDispatch
    {
        //======================================================================
        // Properties
                        
        
    };

    //==========================================================================
    // DIOPCGroupEvent

    [
        uuid(28E68F97-8D75-11d1-8DC3-3C302A000000),
        nonextensible,
        helpstring("OPC Group Events")
    ]
    dispinterface DIOPCGroupEvent
    {
        properties:
        methods:

        [id(1)] 
        void DataChange(
            [in] LONG                TransactionID,
            [in] LONG                NumItems,
            [in] SAFEARRAY(LONG)*    ClientHandles,
            [in] SAFEARRAY(VARIANT)* ItemValues,
            [in] SAFEARRAY(LONG)*    Qualities,
            [in] SAFEARRAY(DATE)*    TimeStamps
        );

        [id(2)] 
        void AsyncReadComplete(
            [in] LONG                TransactionID,
            [in] LONG                NumItems,
            [in] SAFEARRAY(LONG)*    ClientHandles,
            [in] SAFEARRAY(VARIANT)* ItemValues,
            [in] SAFEARRAY(LONG)*    Qualities,
            [in] SAFEARRAY(DATE)*    TimeStamps,
            [in] SAFEARRAY(LONG)*    Errors
        );

        [id(3)] 
        void AsyncWriteComplete(
            [in] LONG             TransactionID,
            [in] LONG             NumItems,
            [in] SAFEARRAY(LONG)* ClientHandles,
            [in] SAFEARRAY(LONG)* Errors
        );

        [id(4)] 
        void AsyncCancelComplete(
            [in] LONG CancelID
        );
    };

    //==========================================================================
    // OPCItems

    [
        object,
        dual,oleautomation,
        uuid(28E68F98-8D75-11d1-8DC3-3C302A000000),
        helpstring("Collection of OPC Item objects"),
        pointer_default(unique)
    ]
    interface OPCItems : IDispatch
    {
        //======================================================================
        // Properties

       
    };

    //==========================================================================
    // OPCItem

    [
        object,
        dual,oleautomation,
        uuid(28E68F99-8D75-11d1-8DC3-3C302A000000),
        helpstring("OPC Item object"),
        pointer_default(unique)
    ]
    interface OPCItem : IDispatch
    {
        //======================================================================
        // Properties

        
    };

    //==========================================================================
    // IOPCActivator

    [
        object,
        dual,oleautomation,
        uuid(860A4800-46A4-478b-A776-7F3A019369E3),
        helpstring("Used to associate existing COM servers with a OPCAutoServer object."),
        pointer_default(unique)
    ]
    interface IOPCActivator : IDispatch
    {
        //======================================================================
        // Methods

        [helpstring("Returns an automation wrapper instance for an server existing COM server.")]
        HRESULT Attach(
            [in]           IUnknown*        Server,
            [in, string]   BSTR             ProgID,
            [in, optional] VARIANT          NodeName,
            [out, retval]  IOPCAutoServer** ppWrapper 
        );
    };

    //==========================================================================
    // OPCActivator
    
    [
        uuid(860A4801-46A4-478b-A776-7F3A019369E3),
        helpstring("OPC Automation Server Activator")
    ]
    coclass OPCActivator
    {
        [default] interface IOPCActivator;
    };

    //==========================================================================
    // OPCServer
    
    [
        uuid(28E68F9A-8D75-11d1-8DC3-3C302A000000),
        helpstring("OPC Automation Server")
    ]
    coclass OPCServer
    {
        [default]         interface IOPCAutoServer;
        [source, default] dispinterface DIOPCServerEvent;
    };


    //==========================================================================
    // OPCGroups

    [
        uuid(28E68F9E-8D75-11d1-8DC3-3C302A000000),
        helpstring("OPC Automation Groups Collection")
    ]
    coclass OPCGroups
    {
        [default]         interface IOPCGroups;
        [source, default] dispinterface DIOPCGroupsEvent;
    };

    //==========================================================================
    // OPCGroup

    [
        uuid(28E68F9B-8D75-11d1-8DC3-3C302A000000),
        helpstring("OPC Automation Group")
    ]
    coclass OPCGroup
    {
        [default]         interface IOPCGroup;
        [source, default] dispinterface DIOPCGroupEvent;
    };
};

Answer 1

coclass 或者 interface 的 uuid 属性里定义：

[
    object,
    uuid(28E68F92-8D75-11d1-8DC3-3C302A000000),  // 这就是一个 IID
    helpstring("OPCServer Object"),
    pointer_default(unique)
]
interface IOPCAutoServer : IDispatch
{
    // ...
};

28E68F92-8D75-11d1-8DC3-3C302A000000 就是 IOPCAutoServer 接口的 IID。

CLSID，一般在 coclass 的 uuid 属性里定义：

[
    uuid(860A4801-46A4-478b-A776-7F3A019369E3),  // 这就是一个 CLSID
    helpstring("OPC Automation Server Activator")
]
coclass OPCActivator
{
    // ...
};

860A4801-46A4-478b-A776-7F3A019369E3 就是 OPCActivator 类的 CLSID。