Hand Held Products Dolphin 7200, Руководство пользователя

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C H A P T E R 9 D O L P H I N O S A N D D E V E L O P M E N T S Y S T E M
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The following Utilities are included in the Dolphin ROM image and are automatically
loaded when the terminal boots. They are NOT included on the Dolphin OS and
Development System Disk.
Utility Description
EVS.EXE Enhanced Video System (EVS) is a TSR
that traps standard video BIOS (INT 10H)
calls, and overlays hardware-specific
support for the Dolphin’s LCD. In
addition, EVS provides application and
system level Status line support.
POWERMON.EXE POWERMON.EXE is a TSR that
monitors battery status and power usage.
POWERMON.EXE is automatically
loaded when the terminal boots.
Dolphin Application Development
Compiling Applications for the Dolphin
Dolphin application development is straightforward. Since Dolphin is DOS-
compatible, most of the application can be tested on a desktop computer.
Although Dolphin is DOS-compatible, it provides many unique features that are not
built into most PCs. For example, it has an integrated bar code scanner. The Dolphin
libraries provide an API that allows an application to use these features. There are four
libraries provided for linking into applications:
•
dolphins.lib for small memory models
•
dolphinm.lib for medium memory models
•
dolphinc.lib for compact memory models
•
dolphinl.lib for large memory models
The header file, dolphin.h , in the c:\dolphin\devtools\ directory contains useful
declarations for using these libraries.