Symbol MK2200 MicroKiosk, Руководство по продукции

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3 - 22 MK2200 MicroKiosk for CE .NET 4.2 Product Reference Guide
Configuring User Application(s)
The MK2200 Configuration Utility window configures the launching of user application(s). The seven definable
application "slots" are processed upon power up. Programs launch in sequence with no delay, unless you set
the
Delay Before Launch or Waiting For Completion
parameter.
The Startup program supports four parameters for each slot, detailed in Table 3-6 : executable path, command
line arguments, delay before running, and a special flag.
Reliable Sequencing of Application Programs
Use the
Delay Before Launch
and
Wait for Completion
parameters to set the startup process parameters:
•
If an application requires a definitive order of execution
•
To provide a signal between components to detect failures
•
To verify that local or networked resources are available before the main application launches.
Use the
Delay Before Launch
parameter to achieve a delay in the launch sequence. However, this is not a
robust way to ensure correct system operation. The recommended method is to write a separate program, with
or without a user interface, that performs required checks then terminates, possibly setting a registry value or
filesystem flag to indicate success. Set the
Wait For Completion
flag and run this program before running the
main application(s).
Table 3-6
User Applications, Parameter Descriptions
Parameter Description
Application Path The full “run” path to the executable. Define this in order to process the
entry (i.e., do not just specify a delay). File type associations are not
supported. For example if the
Argument
contains a word document,
specify the full path to wordpad.exe in the
Application Path
.
Arguments Optional. Command line arguments for the program above. Escape
double quotation marks using a back slash character, as in \". Also
escape back slashes, i.e., \\.
Delay Before Launch Optional. Specifies the number of seconds to delay before launching the
User Application, if a previous program needs to complete or to ensure
system resources are available. This is a simple way to handle
sequencing; see
Reliable Sequencing of Application Programs on page
3-22 for more complex situations (requires “wait for completion”).
Waiting For Completion Specifies whether the startup sequence waits for this program to complete
before launching the next one, typically set to Disabled. See
Reliable
Sequencing of Application Programs on page 3-22 .