TScreen Members

The following tables list the members exposed by TScreen.

	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.
	DefineProperties	Designates methods for storing an object's unpublished data on a stream such as a form file.
	DefineProperties	Provides an interface for a method that reads and writes otherwise unpublished data.
	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.
	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).
	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.
	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.
	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 Events

	Name	Description
	OnActiveControlChange	Occurs immediately after input focus changes to a new windowed control.
	OnActiveFormChange	Occurs immediately after a new form becomes active in a multi-form application.

Public Methods

	Name	Description
	_AddRef	Increments the reference count for this interface.
	_Release	Decrements the reference count for this interface.
	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	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	Creates an instance of TScreen.
	DefaultHandler	Provides the interface for a method that processes message records.
	Destroy	Destroys an instance of TScreen.
	DestroyComponents	Destroys all owned components.
	Destroying	Indicates that the component and its owned components are about to be destroyed.
	DisableAlign	Prevents forms from being aligned in the screen.
	Dispatch	Calls message-handling methods for the object, based on the contents of the Message parameter.
	EnableAlign	Allows forms to be aligned in the screen.
	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.
	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.
	MethodAddress	This is the overview for the MethodAddress method overload.
	MethodName	Returns the name of a class method by address.
	MonitorFromPoint	Returns the monitor where a specified point is located.
	MonitorFromRect	Returns the monitor where a specified rectangle is located.
	MonitorFromWindow	Returns the monitor where a specified window is located.
	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.
	Realign	Realigns the screen's forms according to their Align properties.
	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
	ResetFonts	Reinitializes the fonts listed in the Fonts property.
	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
	ActiveControl	Indicates which control currently has input focus on the screen.
	ActiveCustomForm	Indicates the descendant of TCustomForm that currently has focus.
	ActiveForm	Indicates which form currently has focus.
	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.
	Cursor	Controls the mouse cursor image on a global level.
	CursorCount	The number of cursors available to the application.
	Cursors	Lists the cursors available to the application.
	CustomFormCount	Indicates the number of forms or property pages displayed on the screen.
	CustomForms	Lists all the forms and property pages that are currently displayed in the application.
	DataModuleCount	Indicates the number of data modules that are currently instantiated in the application.
	DataModules	Lists all the data modules that are currently instantiated in the application.
	DefaultIme	Indicates which input method editor (IME) is active when the TScreen object is created.
	DefaultKbLayout	Indicates the Windows handle to the keyboard layout that was active when the application started running.
	DesignInfo	Contains information used by the Form designer.
	DesktopHeight	Specifies the height of the entire virtual desktop.
	DesktopLeft	Specifies the x-coordinate of the desktop's left edge relative to the upper-left corner of the primary monitor.
	DesktopRect	Specifies the boundaries of the virtual desktop relative to the upper-left corner of the primary monitor.
	DesktopTop	Specifies the y-coordinate of the entire desktop's top edge relative to the upper-left corner of the primary monitor.
	DesktopWidth	Specifies the width of the entire virtual desktop.
	FocusedForm	Provides a reference to the form that has focus.
	Fonts	Lists the face names for all fonts supported by the screen.
	FormCount	Indicates the number of forms displayed on the screen.
	Forms	Lists all the forms currently displayed in the application.
	Height	Indicates the vertical size of the screen in pixels.
	HintFont	Specifies the font used to display help hints.
	IconFont	Specifies the font used to display the labels on the icons in file selection dialogs.
	Imes	Lists all input method editors (IMEs) installed on the system.
	MenuFont	Specifies the font used for menu commands.
	MessageFont	Specifies the font used for displaying text in message boxes.
	MonitorCount	Specifies the number of monitors used to comprise the desktop.
	Monitors	Provides access to an individual monitor used to comprise the desktop.
	Owner	Indicates the component that is responsible for streaming and freeing this component.
	PixelsPerInch	Indicates the number of screen pixels that make up a logical inch in the vertical direction.
	PrimaryMonitor	Provides a reference to the primary monitor.
	SaveFocusedList	Gives a list containing the currently focused forms.
	VCLComObject	Represents information used internally by components that support COM.
	Width	Indicates the horizontal size of the screen in pixels.
	WorkAreaHeight	Specifies the height of the work area on the primary monitor.
	WorkAreaLeft	Specifies the left edge of the work area on the primary monitor.
	WorkAreaRect	Specifies the boundaries of the usable work area on the primary monitor.
	WorkAreaTop	Specifies the top edge of the work area on the primary monitor.
	WorkAreaWidth	Specifies the width of the work area on the primary monitor.

Published Properties

	Name	Description
	Name	Specifies the name of the component as referenced in code.
	Tag	Stores an integer value as part of a component.

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