directx sampleから学ぶ、一般的なコーディング規約

//--------------------------------------------------------------------------------------
// Release D3D9 resources created in the OnD3D9CreateDevice callback 
//--------------------------------------------------------------------------------------
void CALLBACK OnD3D9DestroyDevice( void* pUserContext )
{
    DXUT_BeginPerfEvent( DXUT_PERFEVENTCOLOR3, L"Method: OnD3D9DestroyDevice" );
    g_DialogResourceManager.OnD3D9DestroyDevice();
    g_SettingsDlg.OnD3D9DestroyDevice();

    SAFE_RELEASE( g_pEffect9 );
    SAFE_RELEASE( g_pFont9 );
    SAFE_RELEASE( g_pLightVertDecl );
    SAFE_RELEASE( g_pVertDecl );

    if( !g_bToggleRefCountBug )
    {
        SAFE_RELEASE( g_pVB );
        SAFE_DELETE( g_pVB );
    }

    SAFE_DELETE( g_pEffect9 );
    SAFE_DELETE( g_pFont9 );
    SAFE_DELETE( g_pLightVertDecl );
    SAFE_DELETE( g_pVertDecl );

    for( int i = 0; i < NUM_OBJ; ++i )
    {
        g_MeshObj[i].Destroy();
    }

    DXUT_EndPerfEvent();
}

サンプルから引用しただけ。これに従おう。