C++ (Cpp) WpdBaseDriver::Release示例

示例#1

文件： Driver.cpp 项目： 340211173/Windows-driver-samples

CDriver::OnCleanup(
    _In_ IWDFObject* pWdfObject
    )
{
    // Release the base driver object
    HRESULT         hr              = S_OK;
    WpdBaseDriver*  pWpdBaseDriver  = NULL;

    hr = pWdfObject->RetrieveContext((void**)&pWpdBaseDriver);
    if((hr == S_OK) && (pWpdBaseDriver != NULL))
    {
        pWpdBaseDriver->Release();
        pWpdBaseDriver = NULL;
    }
}

示例#2

文件： Driver.cpp 项目： 340211173/Windows-driver-samples

CDriver::OnCleanup(
    _In_ IWDFObject* pWdfObject
    )
{
    TraceEvents(TRACE_LEVEL_INFORMATION, TRACE_FLAG_DRIVER, "%!FUNC! Entry");

    // Release the base driver object
    HRESULT         hr              = S_OK;
    WpdBaseDriver*  pWpdBaseDriver  = NULL;

    hr = pWdfObject->RetrieveContext((void**)&pWpdBaseDriver);
    if((hr == S_OK) && (pWpdBaseDriver != NULL))
    {
        pWpdBaseDriver->Release();
        pWpdBaseDriver = NULL;
    }
}