Name:       mouse_trap

Language:   C

Author:     Ian Curington
            Advanced Visual Systems, Inc
            Thames Mews, Portsmouth Road
            Esher, Surrey, UK
            0372-471161
            ianc@avs.com

Source:     mouse_trap.c

Inputs:     none
Outputs:    none
Parameters: none

Description:

The "Mouse Trap" module accesses the X-Window of the
Geometry Viewer display, and changes the mouse button definitions.
It is intended as an AVS application developers example,
to create custom interface controls.
It intercepts all mouse events, and then selectively sends
commands on to AVS for action. At present, it ignores all
except the right mouse button, which behaves as a "pick",
like the normal AVS left mouse button, while ignoring rotation
and translation requests.
The implementation is to make an invisible input only window,
exactly covering the geometry viewer window.
Events from this invisible window are detected,
masking the geometry viewer window native events.
Commands are then sent via the CLI mechanism.
As a coroutine, this module can also take events from
user interface parameters, although none are present in this version.

Revision History:
  15 April 93 ianc Original