Motorola SYMBOL MINISCAN MSXX04 Betriebsanweisung PDF herunterladen (Seite 72)

Chapter 7: Keyboard and Keyboard Remapping

Key Insertion API Elements

Psion Mobile Devices Developers Guide

Application Lock-Down Mode

When an application is operating in lock-down mode, the Windows task bar is not visible. Normally, when a

user is entering alpha characters on a computer with a numeric keyboard ([2ABC], [3DEF], etc.), the inter-

mediate characters are displayed on the Windows task bar until the desired character is selected. Key inser-

tion allows an application to display the intermediate alphabetic characters directly in the input field.

Reversing Accidental Key Presses

If the [BLUE] or [ORANGE] key is accidently pressed by an operator during data entry, the results can be

unexpected and can cause an input error. Detecting the accidental modifier key press, and reversing it

within the application, ensures that the intended data is entered.

The Mobile Devices SDK provides functions that allow the [BLUE] key and the [ORANGE] key presses to be

intercepted. The key insertion feature allows the application to reverse the setting of the key.

Keyboard Wedge

A keyboard wedge inserts characters into a field that is in focus. A single virtual key can be inserted into an

input field by each call to the key insertion function. A command key, such as Send unshifted code accom-

panied by a virtual key code, wedges the associated virtual key into the input field.

7.3.1 Getting Started with Key Insertion

For articles on Ingenuity Working that will guide you in getting started with key insertion see:

community.psion.com/tags/keyboard/noteDG

7. 3. 2 Co d e S a m p l es f o r Ke y I n s e r ti o n

For postings on Ingenuity Working that contain code samples that contain key insertion see:

community.psion.com/tags/keyboard/codeDG

7.3.3 Key Insertion API Elements

C++: Key insertion on all Psion Windows computers is controlled using the

PsionTeklogix::Keyboard namespace.

Java: Key insertion on all Psion Windows computers is controlled using the Keyboard class in the

com.teklogix.keyboard package.

.NET: Key insertion on all Psion Windows computers is controlled using the Keyboard class in the

PsionTeklogix.Keyboard namespace.

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Motorola SYMBOL MINISCAN MSXX04 Betriebsanweisung Seite 72