int32 GRfindattr(int32 [obj]_id, char *attr_name)
[obj]_id
IN:
Raster image identifier (ri_id), returned by GRcreate or GRselect, or GR interface identifier (gr_id), returned by GRstart
attr_name
Name of the attribute
Purpose
Finds the index of a data object's attribute given an attribute name.
Return value
Returns the index of the attribute if successful and FAIL (or -1) otherwise.
Description
GRfindattr returns the index of the attribute whose name is specified by the parameter attr_name for the object identified by the parameter obj_id.
FORTRAN
integer function mgfndat([obj]_id, attr_name)
integer [obj]_id
character*(*) attr_name