OK, here's a digest.
- copy tcas2v7.dll and tcas2v7.ini files in the main FS9 folder
- copy ilh_tcas.gau into the 'gauges' sub-folder
- decide whether you will use FSUIPC (unregistered is fine) or the supplied TrafficInfo.dll to transmit the traffic info to FS. If TrafficInfo, copy this .dll file into the 'modules' sub-folder
- add the following line to the [window00] section of the panel.cfg file (essential):
gaugeXX=ILH_TCAS!Logic, 0,0,1,1
or
gaugeXX=ILH_TCAS!Logic, 0,0,1,1,trafficinfo:yes //for TrafficInfo module. Default uses FSUIPC.
This activates the gauge logic. Then also add:
gaugeXX=ILH_TCAS!IVSI, 394,773,130,130,fontscale:1.2
This line displays the standard gauge with a brown frame; or
gaugeXX=ILH_TCAS!IVSIb, 394,773,130,130,fontscale:1.2
This variant displays the gauge without the brown frame, allowing you to fit it to an existing bitmap. The figures are gauge location and size in pixels. The other parameter defines text size on the gauge.
You can add it to the main panel as above or into a subsidiary popup window. However, the logic line must stay in the [window00] section.