This documentation describes GLG C and C++ APIs, including the Standard, Intermediate and Extended APIs.

In this version of documentation, functions inside each API are grouped into categories based on their usage, which is helpful for learning GLG API functionality. Examples of the categories include:

Load, Setup and Display

Resource and Tag Access

User Interaction

Chart Functions

Error Handling

...

A different version of documentation that presents functions of each API as a flat list is also available and is convenient when searching for a function description.