Callbacks

Detailed Description

This group contains callbacks that can be installed to handle user interaction, custom formatting, as well as platform-independent timers and work procedures.

Include file: GlgApi.h

Modules
	User Interaction
	This group lists callbacks installed with GlgAddCallback and used to handle user interaction with objects in the drawing.
	Hierarchy Setup
	These callbacks are used to perform custom processing to set up objects in the drawing before the initial appearance.
	Timers and Work Procedures
	These platform-independent callbacks can be used for animating drawings with live data.
	Error Handling
	A custom callback that may be installed to implement custom error handling.
	Custom Interaction Handler
	A custom interaction handler can be used to implement custom input objects with an application-specific functionality.
	Chart Filter
	This callback may be used to implement a custom chart filter.
	Label and Tooltip Formatters
	These callbacks may be used to implement custom axis label and tooltip formatting.
	Alarm Handler
	A global alarm handler callback used to handle Alarm objects in the GLG drawings.
	Custom URL Fetching
	This callback may be used to provide custom handling of fetching data from URLs.