header_name   )     ((vortex_frame_get_mime_header (frame, header_name)) ? vortex_frame_mime_header_content (vortex_frame_get_mime_header (frame, header_name)) : NULL)

Allows to get the content of the first MIME header found, located by the header_name provided.

This parameter only provides access to the first MIME header. In the case you are accessing a MIME header that could be defined several times, use vortex_frame_get_mime_header combined with vortex_frame_mime_header_next.

frame The frame where the content of the first MIME header will be returned.
header_name The MIME header name to lookup. See vortex_frame_get_mime_header for recognized values.
A reference to the content of the MIME header or NULL if nothing is found.