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Questions tagged [opos]

OLE for Retail POS. An architecture for Win32-based POS device access.

Part of the Unified Point of Service architectural specification for application interfaces to point-of-service devices that are used in the retail environment.

OPOS is OLE for POS, an architecture for Win32-based POS device access adhering to the ActiveX Control specifications. OPOS controls are invisible at run time and act as a proxy to supported device classes.

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Where can I find a "ESC/POS" Epson Barcode Test Program?

I am struggling to get an Epson "ESC/POS" printer to print barcodes (Using Delphi) and want to test if the printer is not faulty. Do you know where I can find a program to print a barcode in "ESC/POS"? I suppose as a last resort an OPOS program will…
Johan Bresler
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Implement OPOS Device in C#

For some interop with a legacy POS application, I was wondering if it was possible to implement a phony OPOS device in C#. Basically I would implement a phony keyboard that took web requests and passed on key presses to the legacy application. Does…
jonathanpeppers
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Printing simplified Chinese characters on Epson TM-T88IVM

I am trying to print Chinese characters on an Epson TM-T88IV M (parallel port) using the Microsoft Point of Service SDK in C#. However, they appear as questions marks on the printer. (?) My PosPrinter has the following valid CharacterSetList…
Jason Kealey
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Implementing an OPOS printer service object for capturing printed text

We're trying to create something like a printer driver wrapper for POS applications, that would allow us to capture the printed receipt, and then forward it again to the original printer. So far, we implemented one as a service object on top of "POS…
Omar
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POS Printer OPOS interface and When to Use It

I am developing a POS system for cafe-bar-restaurants. It works fine, but I have some problems regarding printers. People here suggest I use POS for .NET. But I can't because: My client has a machine with windows home edition as server. So POS for…
GorillaApe
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POS development on windows: OPOS via COM? OPOS for .Net? UnifiedPOS? ...?

I plan to develop a POS system from scratch, which will be based on windows (currently XP SP3). I tried to get an overview of which API to use to work with POS devices. So far I found OPOS which is implemented as a set of COM objects, a .Net library…
Achim
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Unable to enable a claimed device using POS for .Net

I am using a Motorola DS4208 hand held barcode reader. In the past I was able to successfully setup and use this device, however recently it has stopped working. This may be the result of installing other devices that also use OPOS and POS for .Net…
David Rupe
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Microsoft POS C# CharacterSet attribute cannot be set.

I installed Bixolon BCD-1000 OPOS Driver.It can print ASCII characters;however I have to print Cyrillic characters. When I try to change CharacterSet 437(Default Charset) To 999(UNICODE), it returns error message. [Fault Message][1] public…
Tunahan Yıldırım
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How to release an OPOS device after a failure before close or release

I'm working with an OPOS device and I've noticed that if something fails before my code gets the chance to release/close the device, that ClaimDevice fails from there forward (usually error 101). Even if I shut down the app. or physically power off…
Paul Mrozowski
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Send signal via RJ12 in Delphi

I have a cash register of a Chinese manufacturer and I want to open its cash drawer using Delphi code. The register and the drawer are connected by an RJ12 (6 pins) cable. I've seen elsewhere mentioned "cash registers and POS system sends a 12V or…
Fouad Loucif
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Hang on Open()/Claim() in OPOS / POS for .NET

I am running Microsoft POS for .NET. I have a cash drawer, barcode scanner and receipt printer connected to the computer. Using the Microsoft POS for .NET test application, they all work fine. Our application is an ASP.NET web application, in IIS.…
Jason Kealey
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OPOS library v1.14 is not working as expected with x64 build of .net

We are using the OPOS drivers v 1.11 in our Desktop application and now migrating it to v 1.14. The application is working fine with the newer version on x86 architecture but when compiled to x64 , it throws a runtime error for class not…
Ajeet Yadav
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Check if cash drawer is open or closed

I am developing a POS using c# with WPF. I need to check if the cash drawer is open or not to tell the user that it needs to be closed before the next sell. My cash drawer is a dynapos connected to a receipt printer ECLine (I have no drivers…
Fernando Santiago
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Epson OPOS ADK for .NET drivers for Windows 7

Has anyone used Epson OPOS ADK for .NET for Windows 7. I tried to install Windows Vista drivers on Windows 7 since there are none available for Windows 7, but it did not work. Please share any suggestions or ideas that might have worked for you. I…
Xience
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The port name is illegal or couldn't be connected to the device

I'm getting the mentioned error when trying to claim the Epson TM-T88V ticket printer. I have installed: OPOS ADK for .NET POS for .NET v1.12 I was printing fine from my latop for many days and from another computer, both working fine. I then…
Rauland
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