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I have a program running on the PC with Window XP. The PC is connected to three projectors. Now, I'd like to control keystone of the projectors or get same result not by physical button touch but by using program language from my program.
Can anyone let me know if there is function for this?

Thanks in advance.
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Hans Dietrich 2-May-11 21:31pm    
Have you checked with the manufacturer of the projector?
H.J.Park 3-May-11 0:16am    
@Hans,
Thanks for your comment. As you advised, I asked the manufacturer for this feature. They're checking internally and will let me know the result. I'm going to post their answer here.
Manfred Rudolf Bihy 3-May-11 7:09am    
Are these professional type projectors? I had to do with office automation that gave me lots of pains as normal of the shelf projectors were used (the price was an issue) that could only be controlled via IR. Automating without any feedback is a very trying experience. So if your projectors have a RS232 interface (should be the case for professional devices) use this interface by all means.

Without knowing the software, or the brand of the projectors, it's impossible to say that there is an available SDK that provides this functionality. It's entirely possible that no provision has been made to control this aspect of the projectors.

I'm assuming that the connection between the PC and the projectors includes some kind of USB/serial/parallel port link. If you're only connected via video/audio cables, you can absolutely forget about it I'd say. Unless there is some (probably) undocumented feature that allows control of the projector via specially formed images or sounds.

- I had an iPod eons ago that I also had an FM transmitter for. The interesting thing was, that in order to change the frequency that the transmitter broadcast at, you had to pick a specific audio file and play it!!(one file provided for each 0.1 MHZ of the FM band in the appropriate country!! - About 200 files) The transmitter was clever enough to realize that the 'track' wasn't sound, but control signals.


Though, to summarise - I'd be pretty surprised to be honest.
 
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Usually the projector can be controlled by PC via Serial Port and LAN connection.
If your projector is support PJLink, you can use sample C# program below:
https://code.google.com/p/pjlink-sharp/[^]

Regards,

Hadi H.
 
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