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2D API

• session control
• system control
• drawing commands
• information functions
• dialog with the user

The TGS API is universal. It allows application programs to be written in device independent manner. TGS internally manages the interface to the GDI in use and the required import and export files and devices.

Language: C++, but has a C compatible function call interface.

2D Core

• TGS SESSION OBJECT. Provides all of the functions required to start, operate, and close a TGS operating session. Generally one session object is used per application.

• TGS SYSTEM OBJECT. Provides all of the functions required to start, operate, and close a single TGS image or window. These include: management of primitive and group tables, scaling, file operations etc. There may be multiple system objects per session.

• RESOURCES. Provides the drawing tools required by the 2D primitives. These include pens for line drawing, brushes for area filling, and fonts for text.

• 2D PRIMITIVES. These are the basic graphical units such as ellipses and rectangles.

• GROUPS. Groups provide the mechanism of combining primitives into a larger entity. A group allows moving and editing of a set of primitives as if they were a single entity.

• SYMBOLS. Symbols are a special kind of group designed for animation. They associate code that performs automatic editing with the group and primitives to be operated on.

Language: C++.

TGS Master DLLs

Language: C++.

2D Windows GDI Interface

It supports all versions of Windows. Selection between the different versions is accomplished by conditional compilation, controlled by the SYSDEF header.

This module is responsible for providing all Windows functionality associated with the scope of the 'limited editing' implementation of TGS.

Specifically it provides:

• the ability to draw or redraw graphics in a window as required
• a ruler and grid system for the displayed page
• menu, mouse and keyboard processing to zoom and scroll around the page
• Windows printing support
• control dialog boxes for setting parameters in the module, such as Windows print mode parameters
• common dialog boxes for use by the application program, eg. for obtaining page size and orientation information, scale mode and offsets

Language: C++.

TGS Windows Application Template

Language: C.

TGS Windows MDI Template

Language: C++.

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