dbfaddfield dbffileisnull dbfgetfieldindex dbfgetfieldinfo dbfgetnativefieldtype dbfisattributenull ftdouble ftinteger ftinvalid ftlogical ftstring shpclose shpcomputeextents shpcreate shpcreateobject shpcreatesimpleobject shpdestroyobject shpfileisnull shpgetinfo shpisnull shpopen shpreadobject shpt_arc shpt_arcm shpt_arcz shpt_multipatch shpt_multipoint shpt_multipointm shpt_multipointz shpt_null shpt_point shpt_pointm shpt_pointz shpt_polygon shpt_polygonm shpt_polygonz shpwriteobject

logical function, public shapelib::shpfileisnull ( type(shpfileobject), intent(in)  hshp ) It returns .TRUE. if the provided shapefile object is correctly associated with .shp/.shx file pair. It can be called after shpopen to test whether .shp/.shx files have been successfully opened. Parameters [in] hshp shapefile object to test Definition at line 458 of file shapelib.F90.