message: videoio(dshow): eliminate build warnings from MSVC-Clang
diff: @@ -93,8 +93,9 @@ Thanks to:
  #pragma warning(disable: 4995)
  #endif
  -#ifdef __MINGW32__
  -// MinGW does not understand COM interfaces
  +#if defined(__clang__) // clang or MSVC clang
  +#pragma clang diagnostic ignored "-Wnon-virtual-dtor"
  +#elif defined(__GNUC__) // MinGW
  #pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
  #endif
  