TPen Members

The following tables list the members exposed by TPen.

	Name	Description
	AssignTo	Copies the properties of an object to a destination object.
	Changed	Generates an OnChange event when the properties of the graphics object change.
	DefineProperties	Provides an interface for a method that reads and writes otherwise unpublished data.
	GetColor	This is GetColor, a member of class TPen.
	GetHandle	This is GetHandle, a member of class TPen.
	GetOwner	Returns the owner of an object.
	GetStyle	This is GetStyle, a member of class TPen.
	GetWidth	This is GetWidth, a member of class TPen.
	Lock	Blocks other execution threads from using the associated canvas until the Unlock method is called.
	SetColor	This is SetColor, a member of class TPen.
	SetHandle	This is SetHandle, a member of class TPen.
	SetMode	This is SetMode, a member of class TPen.
	SetStyle	This is SetStyle, a member of class TPen.
	SetWidth	This is SetWidth, a member of class TPen.
	Unlock	Releases the lock on execution threads set by the Lock method.

Public Events

	Name	Description
	OnChange	Occurs immediately after the graphics object changes.

Public Methods

	Name	Description
	AfterConstruction	Responds after the last constructor has executed.
	Assign	Assigns the properties of the pen from another TPen object.
	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 TPen.
	DefaultHandler	Provides the interface for a method that processes message records.
	Destroy	Destroys an instance of TPen.
	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.
	FieldAddress	This is the overview for the FieldAddress method overload.
	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.
	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 the name of the object as it appears in the Object Inspector.
	HandleAllocated	Indicates whether the TGraphicsObject object has acquired a handle to the underlying GDI object.
	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.
	InstanceSize	Returns the size in bytes of each instance of the object type.
	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.
	SafeCallException	Handles exceptions in methods declared using the safecall calling convention.
	ToString	Returns a string containing the class name.
	UnitName	Returns a string containing the unit name.

Public Properties

	Name	Description
	Handle	Specifies the Windows pen object handle.
	OwnerCriticalSection	Points to information about the critical section that the canvas which draws with this graphics object uses to lock out other threads.

Published Properties

	Name	Description
	Color	Determines the color used to draw lines on the canvas.
	Mode	Determines how the pen draws lines on the canvas.
	Style	Determines the style in which the pen draws lines.
	Width	Specifies the width of the pen in pixels.

What do you think about this topic? Send feedback!