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My experience has been that marketing/legal jumps in and claims the data is proprietary and cannot be given out. I suspect this is mostly because they do not have any documentation other than handwritten, coffee ringed, legal pads. The lawyers will not like it because that may expose them to liability issues should you make something that blows up either because their documentation was wrong or you interpreted it wrong. Sometimes after you get past all that, there will be someone who thinks you should pay them outrageous amounts of money for the privilege of seeing their crappy documentation/protocols.
YMMV
Psychosis at 10
Film at 11
Those who do not remember the past, are doomed to repeat it.
Those who do not remember the past, cannot build upon it.
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The easiest route might be to use the existing remote, although it will involve some hardware work. It already has a transceiver. You could tap in to the rx/tx signals which will be at logic levels (e.g. 0/3.3 volts). Or even the display and buttons...
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Guys,
you have a really big challange ahead here. I know alot about RF, so here are the facts.
433mhz is pretty standard for this type of device. You will also see it used in things like remote temp sensors(oregon scientific) and such.
You can get some good inexpensive receivers from companies like Linx.
The bad news is these don't work like you imagine. the radios are very basic, just simple ASK(amplitutde shift keyers). This means there is NO protocol of any kind out of them, just a bit indicating energy was transmitted, this is called a data slicer.
To use them you need to bolt them up to an encoder or a microcontroller to generate a bit sequence. this could be something like an RS232 byte, but not usually the case. Most times these are manchester encoded bit streams, this to meet FCC specs and produce a reliable transmission. If you take the output and just hook it up to an RS232 level converter, you probably won't have much sucess even if you can decode the enoding scheme in the pc.
I suggest you open up the remote. Look at the chips in it. There will be either 1 of 2 methods. 1 is a microcontroller doing all the work and scanning the buttons(I'll bet not for this cheap a deal).
2. a holtec encoder chip doing the work, this is a very cheap solution. If you have this, then you can eliminate all the pain. You just need to tap the switch contacts with relays or fets and connect this back to the pc. A parallel port would work, or just soemthing like the RTDI rs232->parallel chips. They also make cables with these parts in them that could be made to work easily on the 3.3v levels(if that is what is in there...)
Good luck...
ken
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Oh dear, I got all happy when I misread that as you wanting to read information from HF using C#, which is of course also RF, but most modern RF is UHF, and my arcane and atrophied knowledge of analogue HF radio magic remains dormant for another epoch.
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I want the code to load an image and it must show that, it is color image(or) gray scale image.. in a faster way..
Thanks,
Sukesh
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What's a gray scale image?
Gray is a color, so why not always report color? 
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Member 8652316 wrote: in a faster way..
You will have to look at all the pixel colors, and it is not "fast".
One way to check if the image is grayscale, is if the RGB components of each pixel are equals to each other.
Red == Green == Blue.
M.
Watched code never compiles.
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Thanks for your response i used this logic also.. but it is slow..
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Faster than what?
What do you mean by 'greyscale'?
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Member 8652316 wrote: I want the code
Don't ask for code. Ask for ideas instead.
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I want Salma Hayek. We're both going to be disappointed tonight.
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If I have several versions of the same DLL in the GAC which I always encounter.
When my application run, which version is selected to run if I did not specify which version of the dll to be used in the .net application.
Thanks.
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When you specify a DLL in a project (web or windows) the version is also specified in there. I.E.:
<compilation>
<assemblies>
<add assembly="System.Data, Version=1.0.2411.0,
Culture=neutral,
PublicKeyToken=b77a5c561934e089"/>
</assemblies>
</compilation>
This is the version selected by your app.
"Whether you think you can, or you think you can't--either way, you are right." — Henry Ford
"When I waste my time, I only use the best, Code Project...don't leave home without it." — Slacker007
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I don't think that answers the question. The question states, "if I did not specify which version"; what you show appears to specify the version.
I also notice that when I look at the properties of a reference (in VS) I can set Specific Version to true or false, I've always seen it as false, so which version will be used at run time?
Plus, as for me, I generally compile at the command line and don't use VS and its project files; so which version is used then?
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I think it's the highest version which is compatible with the version of the .Net Framework you're compiling against.
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You can of course actually get the version at run time. So you can run your app and then print it.
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Hi,
I would like to know how to develop a QMS software (Queue management system) similar to the one used in banks and other companies.
It's basically a database application which I have no problem with it..
Also, I don't think there will be a problem displaying the queue on the screen as I am going to use VGA extender and display what every is showing on a Multimedia PC).
But my only concern is how to announce the number? so if the next is number 322 which supposed to go to room 5 it should be announ ced saying Ticket 322 Room no# 5
can anyone quide please..
Thanks in advance..
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Well, the easiest way is to have each number as a sound file and just play the relevant sound files.
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To add to Pete reply, you could use the Speech Synthesis built into .NET:
SpeechSynthesizer speak = new SpeechSynthesizer();
speak.SpeakAsync("Number 322 please go to room 5");
You will need a reference to "System.Speech" and a using System.Speech.Synthesis statement.
It isn't perfect, but it is understandable!
Ideological Purity is no substitute for being able to stick your thumb down a pipe to stop the water
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I have a script in python.
I would like to call it from a winform in C#, is it possible? and how?
Thanks
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If it works for you from a "command prompt", then Process.Start() can handle it.
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Thanks.
and if I want to call a single function from the script, is there a way?
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If you know how to do it from a "command prompt", then Process.Start() can handle it.
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