Implement Pole Display in DOS Mode in VB.NET

Question

Hi, I want to implement Pole Display in DOS Base through VB.NET. How can I align the text which is Display in the Pole Display and also clear the text when I want to clear it. I have required three type of Port(COM, LPT, USB) for Pole display.

NOTE: Don't use of OPOS driver.

Answer 1

Using POS for .NET, which is based on the UPOS specification, you can write a VB.NET application that can write output to the Poll Display. The OPOS driver acts as a middle layer between the hardware an applications. The commands to align and clear text would be calls to the OPOS driver.

Here is a video on POS for .NET:
http://channel9.msdn.com/posts/scobleizer/Craig-Jensen-Windows-Embedded-for-Point-of-Sale/

You can find some POS for .NET examples here: http://www.seanliming.com/WEPOS.html


-Sean

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www.sjjmicro.com / www.seanliming.com, Book Author - XP Embedded Advanced, XPe Supplemental Toolkit, WEPOS / POS for .NET Step-by-Step

Answer 2

If you are going to use Unified POS, then I would recommend you check out the specification at the nrf-arts.org web site. This will answer your questions.

Based upon your last note, it is unclear if you plan to use UPOS or not.  If you don't plan to use UPOS, then you will need to get the protocol used for the device and write your own interface to it (which could still be done as a .NET Service Object).  

Answer 3

Thanks for your reply. I want to know coding part to implement Pole Display in vb.net. Where I have no POS For .NET dll. I can't use it. I have just pass PORT Name and the Text which is display.