void (_stdcall *GetStation)(HOBJ LnID, char *Adr, StationParPtr *StParPtr);

LnID	ID of line, which is the parent of the station.
Adr	Station address.
StParPtr	Pointer to the StationPar structure. If the value of the pointer is NULL, the station was not found.

According to the parameter Adr, the function finds the station and returns the pointer to a StationPar structure if it exists, otherwise it returns NULL value.