Casio Naurtech CETerm Ver.5.5 Scripting Guide Manual do Utilizador descarregar pdf (Página 29)

NAURTECH WEB BROWSER AND TERMINAL EMULATION FOR WINDOWS CE AND WINDOWS MOBILE

CETerm Scripting Guide Page 29

this timer. The scriptExpression is a string containing the script, but is commonly

a function invocation, such as “myTimerFunction( 3, „alert‟ );”

Timers are especially useful with complex or long-running scripts. Interval timers

can be used to perform simple update tasks. One-time timers should be used in

preference to interval timers. In general, scripts should perform a short action

and exit. With a complex script such as a state-machine, the state can be

maintained in global variables and the script re-activated periodically to check for

state transitions and perform actions. See the “expect” script and

“ExpectMonitor” class in Section 5.1 for an example of the use of a timer.

status = SetProperty ( propertyName, propertyValue )

SetProperty will assign the given value to the named property. See Appendix 2

for a list of available properties. The returned status is 0 for success, non-zero

for failure.

SetScriptTimeout ( millisec )

Set the maximum script execution time. This value may be updated during a

running script. If updated, the new timeout will apply starting at the time of the

change. A value of 0 will disable the timeout.

The script timeout prevents a faulty script from locking-up CETerm. For

example, if a script enters an “endless loop”, the timeout will eventually force the

script to abort.

timeoutTimerID = SetTimeout ( scriptExpression, delayMillisec )

Set a one-time timer to execute the scriptExpression after a delay of

delayMillisec. This method returns an ID that should be saved in a global variable

for later use with ClearTimeout if needed. Other scripts may run while waiting for

this timer. The scriptExpression is a string containing the script, but is commonly

a function invocation, such as “myTimerFunction( 3, „alert‟ );”

Timers are especially useful with complex or long-running scripts. Timers can

also be used to defer an operation which is not possible within an event handler.

One-time timers should be used in preference to interval timers. In general,

scripts should perform a short action and exit. With a complex script such as a

state-machine, the state can be maintained in global variables and the script re-

activated periodically to check for state transitions and perform actions. See the

“expect” script and “ExpectMonitor” in Section 5.1 for an example of the use of a

timer.

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Casio Naurtech CETerm Ver.5.5 Scripting Guide Manual do Utilizador Página 29