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- DSwitch Copyright 1992 Ryan Brooks
- -----------------------------------------------
-
- NAME
-
- DSwitch version 1.04 Gamma - first public release
-
-
- SYNOPSIS
-
- A tool to select DCTV video and pass-thru modes.
-
-
- FUNCTION
-
- Click on the Install icon to copy DSwitch into your C:
- directory.
-
- 'DSwitch <mode>' will run the program and invoke the
- appropriate mode. If no parameters are given or an improper
- selection is made, a help template will be shown. DSwitch
- will return control after switching. DCTV *must* be connected
- to the parallel port for the command to function correctly.
- This can be used from Shell, incorporated into scripts or called
- by other software that can issue AmigaDOS commands.
-
- INPUTS
-
- The options for DSwitch are as follows:
- (only the first letter, case-insensitive, is required, all
- modes are mutually exclusive)
-
- Normal Restores normal behavior in the DCTV unit.
-
- Video Makes DCTV always pass whatever is connected to
- the 'Video Input' straight through to 'Video
- Output'. This overrides the presence of a DCTV
- picture on the current screen.
-
- Rgbi Turns on an "unusual" DCTV mode, where it appears
- DCTV encodes pseudo-RGBI Amiga video into a
- composite output. Normal DCTV picture encoding is
- still active. This also may be a different DCTV
- mode. For experimental purposes only.
-
- Bw With this option, all encoded DCTV pictures appear
- in black and white. For experimental purposes
- only.
-
- Strobe After enabling this option, areas of DCTV pictures
- with high chrominance values will appear to
- "flash" at about 10 Hz. For experimental purposes
- only.
-
-
- RESULTS
-
- No return codes are generated in any situation. The
- shell regains control immediately after the switching takes
- place.
-
-
- WARNING
-
- This product is in no way affiliated with Digital
- Creations or Progressive Image Technology.
- Just a reminder: DON'T disconnect or connect DCTV video
- or parallel connections while the Amiga is on!
-
- NOTES
-
- This software was developed by experimentation with the
- DCTV unit. I never disassembled one line of code or opened
- the case, so my command sequences may only be approximations
- of the appropriate protocol. Because of this, I cannot
- guarantee that it will work to your expectations for your
- exact application. However, I have used this command on my
- own system and several friends' systems with no problem
- whatsoever.
-
- Personally, I use it to switch between the output of my
- A520 (color encoder) and DCTV encoded pictures. That way I
- can have both photographic-type pictures/anims and high-res
- Amiga pictures in the same presentation. Just use your
- favorite authoring program to execute the DSwitch command to
- put DCTV in the appropriate mode. Also, it's handy for
- checking your video input without always changing cables. I
- suppose it could also be used to switch between DCTV and
- LaserDisc or VCR during presentations.
-
-
- SEE ALSO
-
- < Insert favorite Michael Sinz quote here >
- Please see DSwitch.readme.
-
-
- BUGS
-
- Not really a bug, but an "inconvenience that requires
- planning", a 'DSwitch v' followed by a 'DSwitch v' will
- produce a slight glitch on the DCTV video output.
- Also, DSwitch has no way of knowing if DCTV is attached
- to your computer, and will happily think it is working.
-
-
- FUTURE ENHANCEMENTS
-
- Send me comments, bugs, info on your application, etc.:
-
- 2575brooksr@vms.csd.mu.edu (internet)
-
- or for non-net people:
-
- Ryan Brooks
- 12886 Bristlecone Lane
- Muskego, WI 53150 USA
-
-
- SOURCE
-
- Available upon request.
-