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If both are suitable to your visual tastes and file size expectations, then use whichever format you want. All formats have strengths and weaknesses. There is no "you must use format x for images of type y", unless the format you chose is physically incapable of storing the image for some...

Both formats are for storing graphics/images. The difference is that .jpg uses a lossy compression method and .gif uses a non-lossy compression method. Many graphics programs allow you to adjust the level of compression (i.e. loss) when saving .jpg images. Ultimately the difference you may...

Is there an echo in here?

On the retail side, both CyberTrader and Interactive Brokers have C++ interfaces to their trading platforms. There may be (and most likely are) a few others.

As long as you use a high quality shielded cable, you can run pretty long lengths without ghosting problems. Here is one site for such cables: http://www.networktechinc.com/cable-pc.html

I don't know if OEM versions are different, but my 8500 has one regular VGA connector and one DVI connector. The card comes with a DVI-to-VGA adapter so that you can attach a regular analog monitor to the DVI port.

My ATI 8500 has two video ports on the back. They both work fine for me (running two LCD monitors).

I can certainly understand Don not posting specific trades in a public forum, especially if there is even the remotest possiblity of legal issues. He does have a company (and many member traders) to protect. If he reveals the actual trades in his class, that is good enough for me. :)

It isn't overly difficult if you have some decent programming experience. See if you fully understand the code in the Excel examples provided by IB. You may just be able to make modifications to that sample code depending on how complex a system you need. On the other hand, I have watched...

My guess is that DDE support is on the way out in favor of sockets/ActiveX. Actually, I hope they get rid of the DDE interface as I believe it is the only reason TWS can't be run on any other operating systems.

I just tried to run IB's Java app on my Mac, and although it did start to work, it complained about a missing DLL (ddedll.dll). So it looks like if they remove the Windows DDE support from TWS, they might have a version that could run on the Mac. Another possibility is to try and create a...

The current version of IB's Java based TWS does not work on Macs (unless they changed something VERY recently). I believe they could make a 100% pure Java version without much effort that would run on Mac OS X, but I don't know if they plan on doing so. I hope they plan to.

Exactly as I would want as well. I already have a working TAL/RealTick data feed account. I don't really want to change that, but some sort of IB user rebate would be nice. Probably wishful thinking I suppose. The only up side for TAL would be a few more customers. I wouldn't be surprised...

I agree completely. I don't want to pay extra for some charting application that I wouldn't use. I have written my own charting app that connects to RealTick's servers (which now thanks to IB's new trade API's, I can now place orders from directly). I would love to see IB reach an agreement...

The easy fix for the socket version of the API is to change the line in EClientSocket::send( float val) from: sprintf( buf, "%f", val); to: sprintf( buf, "%.2f", val); Then recompile your app using the socket API .cpp files instead of linking to the prebuilt .lib.

The ActiveX control is working fine with all prices, however the pure socket version still has the same problems. Hopefully they will fix whatever needs fixing in the EClientSocket.cpp or MySocket.cpp. Anyone have any news relative to this?

Awesome. I'm impressed that the problem was acknowledged and fixed so promptly. I just tested it myself with success.

Any word from IB on this? No. I haven't heard anything back from IB yet, though I only reported it Friday afternoon. Maybe you should report it as well just to be sure IB knows it is happening to more than one or two people. I was all ready to start using my app this week, but I guess it...

Thanks jwcrim. It is nice to have some confirmations that I am not losing my mind. It is my guess that it must be something in the socket API implementation code in TWS since I'm guessing the ActiveX control is using the sockets API, while the DDE link wouldn't be using the sockets API.

That is correct. I am able to transmit orders of certain prices, but the EXACT same trade with another price (and new id of course) will fail. I have followed all documentation, used all the sample apps they provided, etc., all with the same results. The exceptions are that the orders that...