IDiaEnumSymbols

Artigo
11/15/2016

Note

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Enumerates the various symbols contained in the data source.

Syntax

IDiaEnumSymbols : IUnknown

Methods in Vtable Order

The following table shows the methods of IDiaEnumSymbols.

Method	Description
IDiaEnumSymbols::get__NewEnum	Retrieves the `IEnumVARIANT Interface` version of this enumerator.
IDiaEnumSymbols::get_Count	Retrieves the number of symbols.
IDiaEnumSymbols::Item	Retrieves a symbol by means of an index.
IDiaEnumSymbols::Next	Retrieves a specified number of symbols in the enumeration sequence.
IDiaEnumSymbols::Skip	Skips a specified number of symbols in an enumeration sequence.
IDiaEnumSymbols::Reset	Resets an enumeration sequence to the beginning.
IDiaEnumSymbols::Clone	Creates an enumerator that contains the same enumeration state as the current enumerator.

Remarks

This interface provides symbols grouped by a specific type of symbol, for example, SymTagUDT (user-defined types) or SymTagBaseClass. To work with symbols grouped by address, use the IDiaEnumSymbolsByAddr interface.

Notes for Callers

Obtain this interface by calling the following methods:

Example

This example shows how to obtain the IDiaEnumSymbols interface and then use that enumeration to list user-defined types (UDTs).

Note

CDiaBSTR is a class that wraps a BSTR and automatically handles freeing the string when the instantiation goes out of scope.

void ShowUDTs(IDiaSymbol *pGlobals)  
{  
    CComPtr<IDiaEnumSymbols> pEnum;  
    CComPtr<IDiaSymbol> pSymbol;  
    HRESULT hr;  
  
    hr = pGlobals->findChildren(SymTagUDT,  
                                NULL,  
                                nsfCaseInsensitive | nsfUndecoratedName,  
                                &pEnum);  
    if (hr == S_OK)  
    {  
        while ( SUCCEEDED( hr = pEnum->Next( 1, &pSymbol, &celt ) ) &&  
                celt == 1 )  
        {  
            CDiaBSTR name;  
            if ( pSymbol->get_name( &name ) != S_OK )  
                Fatal( "get_name" );  
            printf( "Found UDT: %ws\n", name );  
            pSymbol = 0;  
        }  
    }  
}

Requirements

Header: Dia2.h

Library: diaguids.lib

DLL: msdia80.dll

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