TService Members

The following tables list the members exposed by TService.

	Name	Description
	FComponentStyle	FComponentStyle is the field of the ComponentStyle read-only property.

Protected Methods

	Name	Description
	_AddRef	Called when an application uses a component interface.
	_Release	Called when an application releases a component interface.
	AssignTo	Copies the properties of an object to a destination object.
	ChangeName	Sets the private, internal storage for the Name property to the string passed in NewName.
	Controller	This is Controller, a member of class TService.
	DefineProperties	Designates methods for storing an object's unpublished data on a stream such as a form file.
	DefineProperties	Designates methods for storing an object's unpublished data on a stream such as a form file.
	DefineProperties	Provides an interface for a method that reads and writes otherwise unpublished data.
	DoContinue	This is DoContinue, a member of class TService.
	DoCreate	This is DoCreate, a member of class TDataModule.
	DoCustomControl	This is DoCustomControl, a member of class TService.
	DoDestroy	This is DoDestroy, a member of class TDataModule.
	DoInterrogate	This is DoInterrogate, a member of class TService.
	DoPause	This is DoPause, a member of class TService.
	DoShutdown	This is DoShutdown, a member of class TService.
	DoStart	This is DoStart, a member of class TService.
	DoStop	This is DoStop, a member of class TService.
	GetChildOwner	Returns the owner of a child component being read from a stream.
	GetChildParent	Returns the parent, or if there is no parent, returns the owner of a child component being read from a stream.
	GetChildren	Enumerates all child components.
	GetChildren	Enumerates all child components.
	GetIDsOfNames	Maps a single member and an optional set of argument names to a corresponding set of integer dispatch identifiers (dispIDs).
	GetOwner	Returns the owner of a component.
	GetOwner	Returns the owner of an object.
	GetTypeInfo	Retrieves the type information for an object.
	GetTypeInfoCount	Returns the number of type information interfaces that an object provides (either 0 or 1).
	HandleCreateException	This is HandleCreateException, a member of class TDataModule.
	Invoke	Provides access to Automation properties and methods when the component wraps an Automation object.
	Loaded	Initializes the component after the form file has been read into memory.
	Main	This is Main, a member of class TService.
	Notification	Forwards notification messages to all owned components.
	PaletteCreated	Responds when the component is created from the component palette.
	QueryInterface	Returns a reference to a specified interface if the object supports that interface.
	ReadState	Reads the state of the component.
	ReadState	Reads the state of the component.
	SetAncestor	Clears or sets csAncestor state in the component's ComponentState property.
	SetChildOrder	Sets the visual ordering of a child control.
	SetDesigning	Ensures that components inserted at design time have their design-mode flag set.
	SetDesignInstance	Ensures that components inserted at design time have their design-mode flag set.
	SetInline	Sets the csInline bit of the component's ComponentState property
	SetName	Sets the value of the Name property.
	SetParentComponent	Sets the parent component.
	Updated	Clears the csUpdating state in the component's ComponentState property when the component finishes updating.
	UpdateRegistry	Provides the interface for a method that adds type library and version information to the Registry on components that implement COM interfaces.
	Updating	Sets the csUpdating state in the component's ComponentState property.
	ValidateContainer	Determines whether an object can be inserted into a container.
	ValidateInsert	Provides the interface for a method that validates an child component before it is inserted.
	ValidateRename	Ensures that renaming an owned component does not create name conflict.
	WriteState	Writes the state of the component.

Public Methods

	Name	Description
	_AddRef	Increments the reference count for this interface.
	_Release	Decrements the reference count for this interface.
	AfterConstruction	Generates an OnCreate event.
	AfterConstruction	Responds after the last constructor has executed.
	Assign	Copies the contents of another, similar object.
	BeforeDestruction	Performs any necessary actions before the first destructor is called.
	BeforeDestruction	Generates an OnDestroy event.
	BeforeDestruction	Responds before the first destructor executes.
	ClassInfo	Returns a pointer to the runtime type information (RTTI) table for the object type.
	ClassName	Returns a string indicating the type of the object instance (as opposed to the type of the variable passed as an argument).
	ClassNameIs	Determines whether an object is of a specific type.
	ClassParent	Returns the type of the immediate ancestor of a class.
	ClassType	Returns the class reference for the object's class.
	CleanupInstance	Performs finalization on long strings, variants, and interface variables within a class.
	Create	Allocates memory and constructs a safely initialized instance of a component.
	Create	Creates an instance of a data module.
	Create	Constructs an object and initializes its data before the object is first used.
	CreateNew	Instantiates and initializes a TService object.
	DefaultHandler	Provides the interface for a method that processes message records.
	Destroy	Disposes of a TService instance.
	DestroyComponents	Destroys all owned components.
	Destroying	Indicates that the component and its owned components are about to be destroyed.
	Dispatch	Calls message-handling methods for the object, based on the contents of the Message parameter.
	Equals	Checks if the current instance and the parameter are equal.
	ExecuteAction	Executes an action.
	FieldAddress	This is the overview for the FieldAddress method overload.
	FindComponent	Indicates whether a given component is owned by the component.
	Free	Destroys an object and frees its associated memory, if necessary.
	FreeInstance	Deallocates memory allocated by a previous call to the System::TObject::NewInstance method.
	FreeNotification	Ensures that AComponent is notified that the component is going to be destroyed.
	FreeOnRelease	Frees the interface reference for components that were created from COM classes.
	GetComponent	Returns a reference to the component associated by the implementing class.
	GetEnumerator	Returns a TComponent enumerator.
	GetHashCode	Returns an integer containing the hash code.
	GetInterface	Retrieves a specified interface.
	GetInterfaceEntry	Returns the entry for a specific interface implemented in a class.
	GetInterfaceTable	Returns a pointer to a structure containing all of the interfaces implemented by a given class.
	GetNamePath	Returns a string used by the Object Inspector.
	GetNamePath	Returns the name of the object as it appears in the Object Inspector.
	GetParentComponent	Returns the containing Component.
	GetServiceController	Returns the service's registered handler function.
	HasParent	Verifies whether the component has a parent.
	InheritsFrom	Determines the relationship of two object types.
	InitInstance	Initializes a newly allocated object instance to all zeros and initializes the instance's virtual method table pointer.
	InsertComponent	Establishes the component as the owner of a specified component.
	InstanceSize	Returns the size in bytes of each instance of the object type.
	IsImplementorOf	Indicates whether the component implements a specified interface.
	LogMessage	Sends an error message to the event log.
	MethodAddress	This is the overview for the MethodAddress method overload.
	MethodName	Returns the name of a class method by address.
	NewInstance	Allocates memory for an instance of an object type and returns a pointer to that new instance.
	QueryInterface	Returns a reference to a specified interface if the object supports that interface.
	ReferenceInterface	Establishes or removes internal links that cause this component to be notified when the implementer of a specified interface is destroyed.
	RemoveComponent	Removes a specified component specified from the component's Components list.
	RemoveFreeNotification	Disables destruction notification that was enabled by FreeNotification
	ReportStatus	Updates the Service Control Manager's status information for the calling service.
	SafeCallException	Handles exceptions in methods declared using the safecall calling convention.
	SafeCallException	Handles exceptions in methods declared using the safecall calling convention.
	SetSubComponent	Identifies whether the component is a subcomponent.
	ToString	Returns a string containing the class name.
	UnitName	Returns a string containing the unit name.
	UpdateAction	Updates the state of an action.

Public Properties

	Name	Description
	ComObject	Specifies the interface reference implemented by the component.
	ComponentCount	Indicates the number of components owned by the component.
	ComponentIndex	Indicates the position of the component in its owner's Components property array.
	Components	Lists all components owned by the component.
	ComponentState	Describes the current state of the component, indicating when a component needs to avoid certain actions.
	ComponentStyle	Governs the behavior of the component.
	DesignInfo	Contains information used by the Form designer.
	DesignOffset	Specifies the design offset for the data module at design time.
	DesignSize	Specifies the design size for the data module at design time.
	ErrCode	Contains the service specific error code returned on starting or stopping the service.
	Owner	Indicates the component that is responsible for streaming and freeing this component.
	Param	Lists the parameters to the service.
	ParamCount	Indicates the number of startup parameters for the service.
	ServiceThread	Identifies the dedicated thread for the service.
	Status	Indicates the current state of the service.
	Terminated	Indicates whether the service thread has terminated.
	VCLComObject	Represents information used internally by components that support COM.
	Win32ErrCode	Indicates the Win32 error code reported by the service if a service specific code is not defined.

Published Events

	Name	Description
	AfterInstall	Occurs immediately after the service is registered with the Windows Service Control manager.
	AfterUninstall	Occurs immediately after the service is removed from the Service Control manager's database.
	BeforeInstall	Occurs before the service is first registered with the Windows Service Control manager.
	BeforeUninstall	Occurs immediately before the service is removed from the Service Control manager's database.
	OnContinue	Occurs when the Service Control manager resumes the service after it has been paused.
	OnCreate	Occurs when an application instantiates a data module.
	OnDestroy	Occurs when the data module is about to be destroyed.
	OnExecute	Occurs when the thread associated with the service starts up.
	OnPause	Occurs when the Service Control manager pauses the service temporarily.
	OnShutdown	Occurs when the system running the service application is about to shut down.
	OnStart	OnStartup occurs when the service first starts up, before the OnExecute event.
	OnStop	Occurs when the Service Control manager stops the service.

Published Properties

	Name	Description
	AllowPause	Indicates whether clients are allowed to pause the service.
	AllowStop	Indicates whether clients are allowed to stop the service.
	Dependencies	Lists the services or load ordering groups on which the service depends.
	DisplayName	Identifies the service in the Windows Service Control Manager.
	ErrorSeverity	Indicates the severity of service startup failure.
	Interactive	Indicates whether the service is interactive with the Windows desktop.
	LoadGroup	Names of the load ordering group that includes the service.
	Name	Specifies the name of the component as referenced in code.
	OldCreateOrder	Specifies when OnCreate and OnDestroy events occur.
	Password	Specifies the password, optionally used depending upon the ServiceStartName, for accessing the service.
	ServiceStartName	ServiceStartName is the name used in the Service Control Manager Startup dialog to start the service.
	ServiceType	Identifies the type of the service as Win32, device driver, or file system driver.
	StartType	Indicates when or how the service starts.
	Tag	Stores an integer value as part of a component.
	TagID	Specifies a unique tag for the service within its LoadGroup.
	WaitHint	Specifies the estimated time, in milliseconds, between a call from the Windows Service Control Manager and the service reporting its status.

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