
Introduction
Text Conventions
Psion Mobile Devices Developers Guide
3
Appendix B: Registry Keys
lists and describes certain Workabout Pro registry keys which may be useful when develop-
ing applications on Psion computers.
1.2 Text Conventions
The following conventions and syntax are followed throughout this document, with the exception of when
referencing API commands (see Section 1.2.1: “Command Syntax”):
• Instructions to press specific keys on the keypad are indicated with the name or symbol of the key
between square brackets.
e.g. [SPACE], [TAB], [BLUE], [A], [.], etc.
• Instructions to press buttons with dedicated functions are given with the name or function of the
button in bold type.
e.g. Power, Scan, etc.
• Instructions to type a specific string of text are given between quotation marks.
e.g. Type “exit”, and press [ENTER].
1.2.1 Command Syntax
When commands are described in text the following conventions are used in the manual:
• Elements that must be typed exactly as shown in the text are in bold.
• Elements that are placeholders are in italic.
The general form of a command is as follows:
sample {+r | -r} argument ... [option]
Where:
1.3 Non-Psion Computers
The Mobile Devices SDK cannot be used on computers other than those made by Psion. Attempts to load a
Psion DLL file on a non-Psion computer fail with an error message.
Note: Notes highlight additional helpful information.
Important: These statements provide important instructions or additional information that is crit-
ical to the operation of the computer or other equipment.
Warning: These statements provide important information that may prevent injury, damage to the
equipment, or loss of data.
An arrow next to field description information (usually in tables) indicates a recommended or suggested
configuration setting.
Element Meaning
sample Indicates the name of the command or utility.
{ } Surrounds a set of choices from which you must choose one.
| Separates two mutually exclusive choices in a syntax line. Type one of these choices, not the
symbol.
argument Specifies a variable name or other information that you must provide, such as a path and file
name.
... Indicates that you can type multiple arguments of the same type. Type only the information, not
the ellipsis (…).
[ ] Indicates one or more optional items. Type only the information within the brackets, not the
brackets themselves.
Comentarios a estos manuales