Studio:AutoScript

 

Introduction 

Ascript is the definitive hierarchy of methods, objects, and properties provided by Autosense. While Autosense helps the user find the script methods/data desired in a script, Ascript is the definitive source of what is available from STRIDE when using Autosense.

The ascript object provides functionality that allows host-based scripts to interact with target-based binaries through the STRIDE Runtime. Through ascript, you can:

• call target-based functions and messages (synchronously or asynchronously)
• set and read parameter values orf these functions and messages
• transparently emulate (mock) target-based functions

Automation API

ascript

When creating a script, the user types in Ascript followed by dot '.' to get Autosense to display. The user may select methods to be used within his script. The user may access property data within his script. this API is the definitive API for Autosense. The following table outlines the main objects and collections available to the user.

Member	Type	Description
Arguments	Collection	Collection of arguments.
Constants	Collection	Collection of constants.
Database	Object	Database settings.
Functions	Collection	Collection of functions.
void Initialize (    String STIDName,    String databaseFile,    Integer messageBoxTimeout [optional] )	Method	Initializes and ascript object instance that has been created outside of tghe STRIDE Studio environment. This call is needed only on an explicitly-created ascript instance. This call should not be made on an ascript instance automatically created and injected into a script by STRIDE Studio.
IsEventPending	Property, Read-only, Boolean	Contains true if there is at least one event in this script's message queue. Events are retrieved from the queue using ascript.WaitForEvent();
LogicalPath	Property, Read-only, String	Contains the script's path in the STRIDE Studio workspace tree.
void MessageBox(     String message,    String title [optional],     String type )	Method	Displays a model message box dialog.
Messages	Collection	Collection of messages.
Output	Property, (String, Integer, or Object)	This is the return value from a RunBlocking() call that invoked this script. This works only when the script is invoked using RunBlocking() in the studio object model.
RspTimeoutPeriod	Property, Integer	This value controls the timeout threshold for synchronous function and two-way message calls (in milliseconds). A zero value indicates no timeout. For interactively run scripts the timeout behavior may be different. Specific calls affected by this value are: Call CallBypassOverride SendAndRead SendAndReadBypassOverride
ScriptName	Property, Read-only, String	Contains the name of the currently running script with extension and without path. If the current ascript instance was instantiated and initialized outside of STRIDE Studio, this value will reflect the STIDName passed to ascript.Initialize().
void Sleep(    Integer period )	Method	Time to pause (in milliseconds). Allowable range is 0 -1440000 (24 hours).
Test Units	Collection	Collection of test units.
Timers	Collection	Collection of timers.
Object WaitForEvent ( void )	Method	Pauses script execution until an event is detected in this script's event queue.
WaitTimeoutPeriod	Property, String	The timeout threshold (in milliseconds) for asynchronous function and message calls. A zero value indicates no timeout.

ascript.Arguments

The Arguments collection manages a list of Arguments passed to a script which has been invoked via one of the following methods of the Studio Object Model's File object:

• RunBlocking([arg1], [arg2], ...)
• RunNonBlocking([arg1], [arg2], ...)

The default sort order of the member argument objects is the order in which the arguments were given in the call where the script was invoked.

Member	Type	Description
Count	Property, Read-only, Integer	Returns the number of Arguments in this collection.
Object Item (     Integer index )	Method	Retrieves the argument at the given index. An exception is thrown if the index is out of range.
Object Item (     String name )	Method	Retrieves the argument with the given name. If a named argument doesn't exist, null is returned.

ascript.Arguments.Item

The ascript Arguments Collection's Item() method returns a Argument Object.

Member	Type	Description
Name	Property, Read-only, String	The argument name. The name may have been specified in the studio automation RunBlocking() or RunNonBlocking() call that launched the script or if not specified the name is synthesized by the ascript object. When synthesized, the name is of the form "Unnamed_N" where 'N' is a monotonically incremented number starting from 0.
Value	Property, Read-only, String, Integer, or Object	The argument value.

ascript.Constants

The Constants collection contains Constants objects that represent all constants in C/C++ source code compiled by the STRIDE compiler. Constants include all #define symbols and enumerated constants.

Member	Type	Description
void ArrangeBy (    String by [optional],    String order [optional] )	Method	Sorts the Constants collection so that indexing by position yields predictable results. The 'By' parameter may only be "Name". If not specified, the default is "Name". This represents how Constants should be sorted in the collection. The 'Order' parameter may be either "Ascending" or "Descending". If not specified, the default is "Ascending". Exception thrown if either argument is outside legal values.
Count	Property, Read-only, Integer	Returns the number of Constants in this collection.
Object Item (     Integer index )	Method	Retrieves the constant at the given index. An exception is thrown if the index is out of range.
Object Item (     String name )	Method	Retrieves the constant with the given name. If a named constant doesn't exist, null is returned.

ascript.Constants.Item

The ascript Constants Collection's Item() method returns a Constant object.

Member	Type	Description
Value	Property, Read-only, String	The value of the constant.

ascript.Database

The Database object represents the currently-loaded STRIDE database managed by ascript. You can combine the values of the database path and name to construct a fully-qualified filename. For example:

var dbFullPath = ascript.Database.Path + "\\" + ascript.Database.Name;

Member	Type	Description
Name	Property, Read-only, String	The name of the database in use. The database name includes the ".sidb" extension.
Path	Property, Read-only, String	The path to the STRIDE database in use. The path does not contain a trailing backslash.

ascript.Functions

The Functions collection represents all captured Function interfaces in the active database.

Member	Type	Description
void ArrangeBy (    String by [optional],    String order [optional] )	Method	Sorts the Functions collection so that indexing by position yields predictable results. The 'By' parameter may be either "Name" or "SUID". If not specified, the default is "Name". This represents how Functions should be sorted in the collection. The 'Order' parameter may be either "Ascending" or "Descending". If not specified, the default is "Ascending". Exception thrown if either argument is outside legal values.
Count	Property, Read-only, Integer	Returns the number of Functions in this collection.
Object Item (     Integer index )	Method	Retrieves the function at the given index. An exception is thrown if the index is out of range.
Object Item (   String name )	Method	Retrieves the function with the given name. A null value is returned if there is no function with the given name.

ascript.Functions.Item

The Function object represents a captured function interface in the currently active STRIDE database. A Function object always exists as a member of the Functions collection.

Member	Type	Description
Name	Property, Read-only, Boolean	Function's name.
Owner	Property, Read-only, Object	Function's owner object. The owner object provides access to properties and methods used by the owner-side of the function interface. The owner-side of the interface is used by the implementor of the function.
SUID	Property, Read-Only, Integer	STRIDE Unique IDentifier assigned by compiler.
Type	Property, Read-Only, String	Contains the string "Function".
User	Property Read-Only, Object	Function's user object. The user object provides access to properties and methods used by the user-side of the function interface. The user-side of the interface is used by the caller of the function.

ascript.Functions.Item.Owner

The Function Owner object represents the Owner (callee) side of a function. The Owner object is used to implement a function in script that can be called through the STRIDE Runtime. The Function Owner object is reachable from a Function object's owner property.

Member	Type	Description
IsOverrideRegistered	Property, Read-Only, Boolean	Contains true if there is a registered override owner.
IsRegistered	Property, Read-only, Boolean	Contains true if there is a registered owner, a registered override owner, or both.
Name	Property, Read-only, Boolean	Owner name.
OutPointers	Property, Read-only, Object	Contains the OutPointers payload of the Function Owner. This exists only if the function's payload has at least one pointer that is qualified as OUT or INOUT. This property is a Dynamic Object. This object's members are composed of all the top-level parameters that are either OUT or INOUT pointers, or a structured types (struct or unions) that contain members that are OUT or INOUT (either directly or by containing additional structured types that contain such members). In the case of structured type objects appearing in the OutPointers hierarchy, only members that are qualified as OUT or INOUT (or that themselves contain these qualified types) are available.
ParameterList	Property, Read-only, Object	Contains the object representing the ParameterList payload of the Function Owner. This property will exist only if the capture function contained one or more parameters. This property will contain the values of all ParameterList fields at the time the function User called the Owner. The value is a Dynamic Object.
void Register (void)	Method	Registers the script from which it is called as the active owner of the function. If there is a currently registered owner or another registration failure, an exception is thrown. Once registered, ownership can be released either by a call to Unregister or by exiting the script that registered the function.
void RegisterOverride (void)	Method	Registers the script as the override registered owner. If the function already has an override registered owner or if there is another registration error, an exception is thrown.
void Return ()	Method	Causes a return from a function call made from another script.
ReturnValue	Property, Read-only, Integer	Contains object representing ReturnValue payload of the function owner. Functions returning void will not have this property. The object is returned as a Dynamic Object.
SUID	Property, Read-only, Integer	STRIDE Unique IDentifier assigned by compiler.
Type	Property, Read-only, String	Contains "Function".
void Unregister (void)	Method	Unregisters the script that was registered as the owner of the function from a prior Register call. If the current script is not the owner or if unregistration fails, an exception is thrown.
void UnregisterOverride (void)	Method	Unregisters the script that was registered as the override owner of the function from a prior RegisterOverride call. If the current script is not the registered override owner or if unregistration fails, an exception is thrown.

ascript.Functions.Item.User

The Function User object represents the User (caller) side of a function. The User object is used to call a function through the STRIDE Runtime. The Function User object is reachable from a Function object's User property.

Member	Type	Description
void Call (void)	Method	Synchronously calls the registered owner of the function (Blocking call). All current field values of the ParameterList property are marshaled to the function Owner. If there is no registered owner or registered override owner, an exception is thrown. If there is no registered owner but there is an override registered owner, the call is routed to the override registered owner. If the RspTimeoutPeriod is non-zero and the call does not complete in the specified time, an exception is thrown. For interactively run scripts the timeout behavior differ; see Timeout Considerations.
void CallBypassOverride (void)	Method	Synchronously calls the override registered owner of the function (Blocking call). The call is made to the override registered owner of the function bypassing any existing registered owner. The current values of all fields in the ParameterList property are marshaled to the override registered function Owner. If there is no override registered owner, an exception is thrown. If the RspTimeoutPeriod is non-zero and the call does not complete in the specified time, an exception is thrown. For interactively run scripts the timeout behavior differ; see Timeout Considerations.
void CallBypassOverrideNonBlocking (void)	Method	Asynchronously calls the override registered owner of the function (Non-blocking call). Invokes call to registered function owner bypassing the registered override owner (if one exists). If there is no registered owner but there is an override registered owner, the call is routed to the override registered owner. Current values of all fields of the ParameterList property are marshaled to the called function. In place of a synchronous return, this method returns to the call immediately. When the function owner (running in a separate thread) returns, an event is placed in this script's queue by the STRIDE Runtime. The event (as a polymorphic object exposing Type and Name properties) is retrieved from the queue using ascript.WaitForEvent(). If the RspTimeoutPeriod is non-zero and the call does not complete in the specified time, an exception is thrown. For interactively run scripts the timeout behavior differ; see Timeout Considerations. The object returned from WaitForEvent() in response to CallByPassOverrideNonBlocking() can be:   The Function User Object corresponding to the function that was called. (Type = "FunctionUser", Name="function name"). The object's ReturnValue property and the OutPointers property (if present) will be populated with the values supplied by the Owner implementation. An Error Object containing information about the error that occurred (Type="Error"; Name="error source").
void CallNonBlocking (void)	Method	Asynchronously calls the registered owner of the function (Non-blocking call). This call invokes a call to the currently registered owner of the function. If there is an override registered owner, it is called. If there is no override registered owner, but there is a registered owner, the registered owner is called. The current values of all fields in the ParameterList property are marshaled to the called function. In place of synchronous return, this method returns to the caller immediately. When the function owner (running in a separate thread) returns, an event is placed in this script's queue by the STRIDE Runtime. The event (as a polymorphic object exposing Type and Name properties) is retrieved from the queue using ascript.WaitForEvent(). If the RspTimeoutPeriod is non-zero and the call does not complete in the specified time, an exception is thrown. For interactively run scripts the timeout behavior differ; see Timeout Considerations. The object returned from WaitForEvent() in response to CallByPassOverrideNonBlocking() can be:   The Function User Object corresponding to the function that was called. (Type = "FunctionUser", Name="function name"). The object's ReturnValue property and the OutPointers property (if present) will be populated with the values supplied by the Owner implementation. An Error Object containing information about the error that occurred (Type="Error"; Name="error source").
IsOverrideRegistered	Property, Read-only, Boolean	Contains true if there is a registered override owner.
IsRegistered	Property, Read-only, Boolean	Contains true if there is a registered owner, a registered override owner, or both.
Name	Property, Read-only, String	User function name.
OutPointers	Property, Read-only, Object	Contains the OutPointers payload of the Function User object. This exists only if the function's payload has at least one pointer that is qualified as OUT or INOUT. This property is a Dynamic Object. This object's members are composed of all the top-level parameters that are either OUT or INOUT pointers, or a structured types (struct or unions) that contain members that are OUT or INOUT (either directly or by containing additional structured types that contain such members). In the case of structured type objects appearing in the OutPointers hierarchy, only members that are qualified as OUT or INOUT (or that themselves contain these qualified types) are available. Upon function return, this property will reflect the OutPointers values set by the Function Owner.
ParameterList	Property, Read-only, Object	Contains the object representing the ParameterList payload of the Function Owner. Functions without parameters will not have this property. Before calling the function, all relevent fields in the ParameterList property must be set (includeing the fields of any child objects). These values are marshaled to the currently registered Owner of the function when it is called. This property is a Dynamic Object.
ReturnValue	Property, Read-only, Object	Contains the object representing the ReturnValue payload of the Function Owner. Functions returning void will not have this property. Upon return this property will reflect the ReturnValue set by the function Owner. This property is a Dynamic Object.
SUID	Property, Read-only, ,Integer	STRIDE Unique Identifier assigned by compiler.
Type	Property, Read-only, String	Contains "FunctionUser". This property is typically used to classify an object that is returned from ascript.WaitForEvent().

ascript.Messages

The Messages Collection is a collection of captured Message objects.

Member	Type	Description
void ArrangeBy (    String by [optional],    String order [optional] )	Method	Sorts the Messages collection so that indexing by position yields predictable results. The 'By' parameter may one of the following: "Name", "SMID", "SUID", "Type". The default sorting order is by "Name". This represents how Timers should be sorted in the collection. A runtime exception is thrown if an invalid value is passed The 'Order' parameter may be either "Ascending" or "Descending" and is not case sensitive. If not specified, the default is "Ascending". A runtime exception is thrown if a invalid value is passed.
Count	Property, Read-only, Integer	Returns the number of Messages in this collection.
Object Item (     Integer index )	Method	Retrieves the message at the given index.

ascript.Messages.Item

The Message object represents a captured message interface in the currently active STRIDE database. A Message object is always a member of the Messages collection.

Member	Type	Description
Name	Property, Read-only, String	Message name.
Owner	Property, Read-only, Object	Message's owner object.
SMID	Property, Read-only, Integer	STRIDE Message Identifier assigned by compiler.
SUID	Property, Read-only, Integer	STRIDE Unique Identifier assigned by compiler.
Type	Property, Read-only, String	Contains message type defined by the SCL declaration. Legal values include:   "OneWayMessage"   "OneWayResponse"   "TwoWayMessage"   "BroadcastMessage"
User	Property, Read-only, Object	Message's user object.

ascript.Messages.Item.Owner

The Message Owner object represents the Owner-side of a Message. This may be a receiver of a one-way or two-way message. It may also be the broadcaster of a broadcast message. The Owner object may be used to implement the message owner in a script that can be called through the STRIDE Runtime.

Member	Type	Description
void Broadcast (void)	Method	Broadcast method exists only for Broadcast Messages. This method broadcasts this message to all message users that have subscribed to this message. The Response payload values are marshaled to all subscribed message users.
Command	Property, Read-only, Object	This property is a Dynamic Object representing the Command payload of the Message Owner. The property exists only if the captured message took one or more parameters. The property contains all the values of the Message User Command fields at the time that the message User called the Owner.
IsOverrideRegistered	Property, Read-only, Boolean	Contains the override Owner registration state of the message. True only if there is a registered override owner.
IsRegistered	Property, Read-only, Boolean	Contains the Owner registration state of the message. True only if there is a registered owner, a registered override owner, or both.
Name	Property, Read-only, String	Contains Message name.
void Register (void)	Method	Register method exists only for One-Way Command or Two-Way Messages. The method registers the script from which it was called as the active owner of the message. If there is already a registered owner or if there is some other registration failure, an exception is thrown. Once registered, ownership can be released either by a call to Unregister() or by exiting the script that registered the message. The same two-way message owner can successfully call both Register() and RegisterOverride() to take both kinds of ownership.
void RegisterOverride (void)	Method	Register override method exists only for One-Way Command or Two-Way Messages. The script that calls this method is registered as the registered override owner such that all future messages are routed to this owner (over and above the registered owner). If there is already an override owner or if there is another registration failure, an exception is thrown. Once a script has registered as the override, it can release ownership by calling UnregisterOverride() or by ending the script that is the override registered owner. A single script can simultaneously be the registered owner and the registered override owner.
Response	Property, Read-only, Object	This property is a Dynamic Object representing the Response payload of the Message Owner. The property exists only if the message is defined with a response payload.
void SendRsp (void)	Method	Send response method exists only for One-Way Response or Two-Way Messages. The method sends the message as a response to a prior message command from a message user. If there is not pending message response expected an exception is thrown. After setting values of the response payload, a script that implements an Owner message calls SendRsp() to reply to an earlier two-way message (or one-way response). The effect of this call on the calling (User) script depends on how the earlier user message was sent. Call Type to Owner Effect on User Script Synchronous:   SendAndRead()   SendAndReadBypassOverride() Synchronous call returns. Owner Message Reponse property reflects values set in the Owner script. Asynchronous:   SendCmd()   SendCmdBypassOverride() Event is added to User Script's queue. Event object is this Owner Message's reply. The object's Response property reflects values set in the Owner script.
SMID	Property, Read-only, Integer	STRIDE Message Identifier assigned by compiler.
SUID	Property, Read-only, Integer	STRIDE Unique Identifier assigned by compiler.
Type	Property, Read-only, String	Contains message type defined by the SCL declaration. Legal values include:   "OneWayMessage"   "OneWayResponse"   "TwoWayMessage"   "BroadcastMessage"
void Unregister (void)	Method	Unregister method exists only for One-Way Command or Two-Way Messages. A call to this method will unregister the script that registered itself as owner from a prior Register() call. If the current script is not the registered owner or if unregistration fails, an exception is thrown.
void UnregisterOverride (void)	Method	UnregisterOverride method exists only for One-Way Command or Two-Way Messages. This method unregisters an owner that previously call the RegisterOverride() method. If the current script is not the override registered owner or if registration fails, an exception is thrown. The same two-way message owner can successfully call both Register() and RegisterOverride() to take both kinds of ownership.

ascript.Messages.Item.User

The Message User object represents the User-side of a Message. This may be a sender of a one-way or two-way message. It may also be the receiver of a broadcast message. The User object may be used to send a message from a script to the registered message owner through the STRIDE Runtime.

Member	Type	Description
void Broadcast (void)	Method	Broadcast method exists only for Broadcast Messages.
Command	Property, Read-only, Object	This property is a Dynamic Object representing the Command payload of the Message User. The property exists only if the captured message took one or more parameters. The values of all Message User Command payload fields should be set before the Message Owner is called.
IsOverrideRegistered	Property, Read-only, Boolean	Contains the override Owner registration state of the message. True only if there is a registered override owner.
IsRegistered	Property, Read-only, Boolean	Contains the Owner registration state of the message. True only if there is a registered owner, a registered override owner, or both.
Name	Property, Read-only, String	Contains Message name.
void Register (void)	Method	Register method exists only for One-Way Command or Two-Way Messages.
void RegisterOverride (void)	Method	Register override method exists only for One-Way Command or Two-Way Messages.
Response	Property, Read-only, Object	This property is a Dynamic Object representing the Response payload of the Message User. The property exists only if the message is defined with a response payload.
void SendRsp (void)	Method	Send response method exists only for One-Way Response or Two-Way Messages.
SMID	Property, Read-only, Integer	STRIDE Message Identifier assigned by compiler.
SUID	Property, Read-only, Integer	STRIDE Unique Identifier assigned by compiler.
void SendAndRead (   Boolean value )	Method	Send and read method exists only for Two-Way and Broadcast Messages.
void SendAndReadBypassOverride (   Boolean value )	Method	Send and read bypass override method exists only for Two-Way Messages.
void SendCmd (void)	Method	Send command method exists only for One-Way Command Messages.
void SendCmdBypassOverride (    Boolean value )	Method	Send command bypass override method exists only for One-Way Command Messages.
void Subscribe (void)	Method	Subscribe method exists only for Broadcast Messages. This method subscribes this message owner to receive message broadcasts from the given message.
Type	Property, Read-only, String	Contains message type defined by the SCL declaration. Legal values include:   "OneWayMessage"   "OneWayResponse"   "TwoWayMessage"   "BroadcastMessage"
void Unsubscribe (void)	Method	Unsubscribe method exists only for Broadcast Messages. This method unsubscribes this message owner from given message's broadcasts.

ascript.TestUnits

TestUnits is a collection of TestUnit Objects contained and managed through ascript.

Member	Type	Description
void ArrangeBy (    String by [optional],    String order [optional] )	Method	Sorts the Test Units collection so that indexing by position yields predictable results. The 'By' parameter may be either "Name" or "SUID". If not specified, the default is "Name". This represents how Test Units should be sorted in the collection. The 'Order' parameter may be either "Ascending" or "Descending". If not specified, the default is "Ascending". Exception thrown if either argument is outside legal values.
Count	Property, Read-only, Integer	Returns the number of Test Units in this collection.
Object Item (     Integer index )	Method	Retrieves the test unit at the given index.

ascript.TestUnits.Item

The TestUnit Object represents a captured Test Unit interface in the currently active STRIDE database. A Test Unit object always exists as a member of the TestUnits collection and is accessed from the collection using the item(#) interface.

Member	Type	Description
Arguments	Object	Test Unit parameter list payload.
Name	Property, Read-only, String	Test Unit name.
IsRegistered	Property, Read-only, Boolean	Contains true if the Test Unit owner has registered on the target side.
void Run (void)	Method	Method to run the test unit.
Suite	Property, Object	An object of type Reporter's TestSuite. By default after a run this object is a sub-Suite of ascript.TestSuite with the same name as the Test Unit (null if no reporting performed). Setting Suite to a concrete external TestSuite prior to execution will override default creation behavior (set to null to revert to default behavior).
Summary	Property, Integer	Contains static payload object of type srTestCaseTotals_t with result (i.e. pass, fail, in progress, not in use).
Type	Property, Read-only, String	Contains test unit type (i.e. TestClass, TestCClass, or TestFList).

ascript.Timers

The Timers collection manages a set of Timer Objects. The Timers allow scripts to generate periodic or 'one-shot' timed events. Upon creation, the Timers collection is empty. The Timers collection is the only read/write collection in STRIDE; member Timer objects can be added (implicitly created) and removed by scripts. From the collection's point of view, member Timers have two states: dead and alive. Timers are alive upon creation and remain so as long as they exist in the collection. A Timer object that is removed from the collection is considered dead. Any operation on a dead timer will cause an exception to be thrown.

Member	Type	Description
Object Add (     Object timerObject )	Method	Adds a new timer object.
void ArrangeBy (    String by [optional],    String order [optional] )	Method	Sorts the Timers collection so that indexing by position yields predictable results. The 'By' parameter may only be "Name". If not specified, the default is "Name". This represents how Timers should be sorted in the collection. The 'Order' parameter may be either "Ascending" or "Descending". If not specified, the default is "Ascending". Exception thrown if either argument is outside legal values.
Count	Property, Read-only, Integer	Returns the number of Timers in this collection.
Object Item (     Integer index )	Method	Retrieves the Timer object for the given index.
Object Remove (     Integer index )	Method	Removes the timer at the given index. A timer object that is removed from the collection is automatically stopped before removal if it is active. No event is generated in this case.

ascript.Timers.Item

The ascript Timers Collection's Item() method returns a Timer Object. The Timer object enables scripting clients to synthesize and receive timer-based periodic or one-shot events.

When a timer expires and rires its event, the event is queued and can be accessed by the ascript.WaitForEvent() method. The expired timer object will be returned by WaitForEvent();

Member	Type	Description
Active	Property, Read-only, Boolean	Contains timer operation state. True if timer is in operation (i.e. it will generate an event at some time in the future). A newly created timer is inactive by default.
Id	Property, Read-only, long	Contains timer identifier.
Duration	Property, long	Timer duration in milliseconds.
Name	Property, Read-only, String	Name assigned when the timer was created. Default names are "Timer_n" where 'n' is the nth named time created by this ascript object.
Periodic	Property, Boolean	When false, the time will fire only once (one-shot mode). When true, the time automatically restarts after each event is fired. This property can be changed regardless of the state of the timer. This field is false by default when a timer is created.
void Start (void)	Method	Transitions an inactive timer to active. Once started, the timer will run for the length of time specified by its Duration property. Calling Start on a timer with a zero/negative duration will cause an exception to be thrown. Calling Start on a timer that has already started will also cause an exception to be thrown.
void Stop (void)	Method	Transitions an active timer to inactive. Calling Stop on a timer that is not active will cause an exception to be thrown.
Type	Property, Read-only, String	Contains the string "Timer". This property is typically used to classify an object that is returned from ascript.WaitForEvent().