Inside Macintosh: Telephony /

Chapter 1 - Introduction to Telephony on the Macintosh / Telephone Manager Initialization Reference

Telephone Manager Initialization Functions / Initializing the Telephone Manager

TELGetTELVersion

Returns the version number for the Telephone Manager.

pascal short TELGetTELVersion (void);

function result

A number indicating the version of the Telephone Manager installed on the system.

DESCRIPTION

The TELGetTELVersion function returns, as its function result, the version of the Telephone Manager that is installed on a system. The current version number is defined by the following constant:

enum {
   curTELVersion           = 4
};

Although the Telephone Manager is designed to be backward compatible, each new version includes additional functions and capabilities. By determining which version is installed on a system, you can tailor your application to offer only those capabilities supported by that version. At a minimum, you can use the version information to supply the appropriate message when a user attempts to access a function that is not supported by an earlier version of the Telephone Manager.