GRselect/mgselct

int32 GRselect(int32 gr_id, int32 index)

gr_id	IN:	General raster interface identifier returned by GRstart
index	IN:	Index of the general raster image in the file

Purpose	Selects and returns the identifier for the general raster image identified by the index index.
Return value	Returns the identifier of the selected general raster image if successful or FAIL (or -1) otherwise.
Description	The index supplied by the parameter index is zero-based.
Example	This example illustrates the use of GRselect:

     #include "hdf.h"

     int32 gr_id, ri_id, file_id, index, stat;

     file_id = Hopen("myfile", DFACC_READ, 0);
     gr_id = GRstart(file_id);
     ri_id = GRselect(gr_id, index);
       ...
     stat = GRendaccess(ri_id);
     stat = GRend(gr_id);
     Hclose(file_id);
      


 FORTRAN

 integer function mgselct(gr_id, index)


 

 integer gr_id, index

[Top] [Prev] [Next] [Bottom]

hdfhelp@ncsa.uiuc.edu

HDF User's Reference Manual, Draft 06/09/97, NCSA HDF Development Group.

FORTRAN	integer function mgselct(gr_id, index)
	integer gr_id, index