What's the meaning of DPM_Locate_Point
 

Hi,world,
what's the meaning of "FLUENT_EXPORT cxboolean Find_Particle (Domain *, Particle *);FLUENT_EXPORT int DPM_Locate_Point(real [], CX_Cell_Id *, int ) and FLUENT_EXPORT CX_Cell_Id DPM_Find_Cell(real [], CX_Cell_Id, int )", which in dpm.h .How can i use it? Please give me any suggestion, thanks in advance!!