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Inside Macintosh: Interapplication Communication /

Chapter 11 - Program-to-Program Communications Toolbox / PPC Toolbox Reference

Data Structures

The Port Information Record

A port information record identifies whether a particular port requires authentication and specifies the port's port name. Both the PPCBrowser and IPCListPorts functions return information about ports using port information records. In addition, if you provide a port filter function, the PPC Toolbox provides information to your function about the current port in a port information record. The PortInfoRec data type defines a port information record.

TYPE PortInfoRec =
   RECORD
      filler1:       SignedByte;       {space holder}
      authRequired:  Boolean;          {authentication required}
      name:          PPCPortRec;       {port name}
   END;

Field Description

filler1

Reserved.

authRequired

Specifies whether the port requires authentication. This field is TRUE if the port requires authentication before a session can begin. Otherwise, this field is FALSE.

name

Specifies an available port name.

For information on the PPCBrowser and IPCListPorts functions, see page 11-53 and page 11-55, respectively. For information on port filter functions, see page 11-79.