E-Seek M300, Справочное руководство

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7.3.2 Programming For 2D-barcode and Magnetic Card Reader
The M300 incorporates the M250 module internally, which can be accessed by a communication port,
named ‘COM2:’ The purpose of this is that if you had an experience of developing any application for
the E-SEEK’s other devices, a same developing approach would apply to the M300. Those are most
likely to create, open, read, write, and close the COM port. Meanwhile, M300 provides the Microsoft
Dot Net Compact Framework 2.0 to ease programming over the COM port. E-SEEK highly recom-
mend developers to use this Compact Framework technology on M300.
7.3.3 Programming For Smartcard Reader
M300 provides the Windows CE PC/SC compliant card reader. It can handle all types of ISO786-3
compatible smart cards without compatibility problems. PC/SC, Personal computer/Smart Card is a
standard framework for Smart Card access on Windows Platforms. That means developers can ex-
pedite any smartcard project by using Microsoft device-independent APIs without knowing low-level
smartcard interfaces.
M300 SDK includes necessary libraries for developing a smartcard application.
For more general information about a smartcard and readers
http://www.cardwerk.com/smartcards/smartcard_standards.aspx
http://www.pcscworkgroup.com/
For the Smartcard on Windows CE, consult
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wcesmart/html/ceconsmartcard.asp
For the Dot Net Compact Framework, consult
http://subsembly.com/en/smartcardsubsembly.html
7.3.4 Exported Named Events
Your application might want to provide the way which let users know when barcode reading starts by
playing a sound, by showing an icon on the taskbar, etc. Two named event are created and signaled
by M250Decoding.dll: M250DecodeStart and M250DecodeEnd. The M250DecodeStart event will be
triggered when users insert a card into the M300 and the other event when M300 finishes processing.
Application can monitor these two events for its purpose.
const TCHAR szevtDecodeStart[] = TEXT(“M250DecodeStart”);
const TCHAR szevtDecodeEnd[] = TEXT(“M250DecodeEnd”);
Example - Named Events
SDK