PRO HELP_FILE

MESSAGE= [$
"                FILES DESCRIPTION",$
" ",$
"       Files names for RH_2D are on the form:",$
"              nrh2_ffff_cpi_yyyymmdd_hh_mnss:ms_t.fts",$
"with:",$
'       ffff    frequency (unit = 100kHz)',$
'       c       data coordonate',$
'                       a visibility',$
'                       i images in instrumental coordonate',$
'                       h images in heliographic coordonate',$
'                       f flux',$
'                       s actives centers',$
'       p       image sampling , number of pixels for axis is',$
'               egal to 2**p',$
'       i       indic, free for user, i may be fixed by user',$
'               interactively by the file indic case',$
'       yyyymmdd    date',$
'       hhmnss:ms   begin time',$
'       s       state',$
'                       b data acquisition, uncompressed',$
'                       c compressed data,irregulary gridded',$
'                       i integrated data, regulary gridded',$
'       NRH sofware accept compressed or integrated data. ',$
'Compresed data are obtain by supressing succesives images, if',$
'they are similar.',$
'       Visibility files have to be transform in images files',$
'before computation, by the COMPUTATION Images command']

r=WIDGET_MESSAGE(message,/INFORMATION, TITLE='NRH FILES')

END