Introduction

This article deals with the universal driver for CARDREAD.DLL readers of the PCards format.

What is it for?

Support of CARDREAD.DLL drivers by PCArds on Windows at the r_keeper 7 cash register.

Purposes:

• To avoid writing the drivers that are already supported
• To provide a capability to write individual reader drivers in a simple format.

Manager Station Settings

Place the InpDevs.udb database into the \rk7\base\workmods\ folder.

The current driver version can be found in InpDevs.udb, versions 7.4.21.299 and 7.5.2.145+. If needed, the file can be placed in older versions and used there.

1. Add the RK7 adapter for CARDREAD.DLL (Pcards card reader library) driver to the cash register in the Service > Stations and Devices reference.
2. Add the required CARDREAD.DLL and its settings file to the cash register.
   
   

   Adapter properties:

   CARD2RK7.DLL is the card reading library adapter for PCards.
   CARDREAD.DLL is the library for card reading.

   Provides the following procedures:

   procedure Init; stdcall; — is called once after the library is loaded

   procedure Start (AHandle, AMsg: Integer); stdcall;  — after this, to start sending AMsg messages on card reading to the AHandle handle. The card number can be found in: lParam — four low-order bytes; wParam — four high-order bytes.

   procedure Stop; stdcall; — to stop sending messages on card reading.

   procedure Done; stdcall; — is called once before the library is loaded.

3. Check the result in MCR Algorithms debug.