/// <summary>
/// Creates a GribMessage instance from a <seealso cref="Grib.Api.GribFile"/>.
/// </summary>
/// <param name="file">The file.</param>
/// <param name="index">The index.</param>
/// <returns></returns>
public static GribMessage Create(GribFile file, int index)
{
GribMessage msg = null;
int err = 0;
// grib_api moves to the next message in a stream for each new handle
GribHandle handle = GribApiProxy.GribHandleNewFromFile(file.Context, file, out err);
if (err != 0)
{
throw GribApiException.Create(err);
}
if (handle != null)
{
msg = new GribMessage(handle, file.Context, index);
}
return(msg);
}