IDebugComPlusSymbolProvider::GetFunctionLineOffset

Mengambil alamat dalam fungsi yang mewakili offset baris yang diberikan.

Sintaks

C#

int GetFunctionLineOffset(
    IDebugAddress     pAddress,
    uint              dwLine,
    out IDebugAddress ppNewAddress
);

C++

HRESULT GetFunctionLineOffset(
    IDebugAddress*  pAddress,
    DWORD           dwLine,
    IDebugAddress** ppNewAddress
);

Parameter

pAddress
[di] Alamat yang mewakili fungsi.

dwLine
[di] Offset baris dari awal fungsi.

ppNewAddress
[out] Alamat baru yang mewakili offset baris dari awal fungsi.

Tampilkan Nilai

Jika berhasil, mengembalikan S_OK; jika tidak, mengembalikan kode galat.

Contoh

Contoh berikut menunjukkan cara menerapkan metode ini untuk objek CDebugSymbolProvider yang mengekspos antarmuka IDebugComPlusSymbolProvider .

HRESULT CDebugSymbolProvider::GetFunctionLineOffset(
    IDebugAddress *pAddress,
    DWORD dwLine,
    IDebugAddress **ppNewAddress
)
{
    HRESULT hr = S_OK;
    CDEBUG_ADDRESS address;
    CComPtr<CModule> pModule;
    DWORD dwOffset;
    CDebugAddress* paddr = NULL;

    METHOD_ENTRY(CDebugSymbolProvider::GetFunctionLineOffset);

    IfFalseGo( pAddress, S_FALSE );
    IfFailGo( pAddress->GetAddress( &address ) );

    ASSERT(address.addr.dwKind == ADDRESS_KIND_METADATA_METHOD);
    IfFalseGo( address.addr.dwKind == ADDRESS_KIND_METADATA_METHOD, S_FALSE );

    IfFailGo( GetModule( address.GetModule(), &pModule) );

    // Find the first offset for dwLine in the function

    IfFailGo( pModule->GetFunctionLineOffset( address.addr.addr.addrMethod.tokMethod,
              address.addr.addr.addrMethod.dwVersion,
              dwLine,
              &dwOffset ) );

    // Create the new Address

    address.addr.addr.addrMethod.dwOffset = dwOffset;
    IfNullGo( paddr = new CDebugAddress(address), E_OUTOFMEMORY );
    IfFailGo( paddr->QueryInterface( __uuidof(IDebugAddress),
                                     (void**) ppNewAddress ) );

Error:

    METHOD_EXIT(CDebugSymbolProvider::GetFunctionLineOffset, hr);
    RELEASE( paddr );
    return hr;
}

Baca juga

• IDebugComPlusSymbolProvider