Vcl.Graphics.TCanvas Methods

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InheritedProtected

AfterConstruction	public	Responds after the last constructor has executed.
AngleArc	public	Draws an arc on the image along the perimeter of the circle defined by the parameters.
Arc	public	Draws an arc on the image along the perimeter of the ellipse bounded by the specified rectangle.
ArcTo	public
Assign	public	Copies the contents of another similar object.
AssignTo	protected	Copies the properties of an object to a destination object.
BeforeDestruction	public	Responds before the first destructor executes.
BrushCopy	public	Copies a portion of a bitmap onto a rectangle on the canvas, replacing one of the colors of the bitmap with the brush of the canvas.
Changed	protected	Called when the canvas is changed.
Changing	protected	Called before the canvas is changed.
CheckDisposed	protected
Chord	public	Draws a closed figure represented by the intersection of a line and an ellipse.
ClassInfo	public	Returns a pointer to the run-time type information (RTTI) table for the object type.
ClassName	public	Returns a string indicating the type of the object instance (as opposed to the type of the variable passed as an argument).
ClassNameIs	public	Determines whether an object is of a specific type.
ClassParent	public	Returns the type of the immediate ancestor of a class.
ClassType	public	Returns the class reference for the object's class.
CleanupInstance	public	Performs finalization on long strings, variants, and interface variables within a class.
CopyRect	public	Copies part of an image from another canvas into the canvas.
Create	public	Creates an instance of TCanvas.
CreateHandle	protected	Allocates a new handle for the canvas.
DefaultHandler	public	Provides the interface for a method that processes message records.
DefineProperties	protected	Provides an interface for a method that reads and writes otherwise unpublished data.
Destroy	public	Destroys an instance of TCanvas.
Dispatch	public	Calls message-handling methods for the object, based on the contents of the Message parameter.
DisposeOf	public	DisposeOf forces the execution of the destructor code in an object.
Draw	public	Renders the graphic specified by the Graphic parameter on the canvas at the location given by the coordinates (X, Y).
DrawFocusRect	public	Draws a rectangle in the style used to indicate that the object inside the rectangle has focus.
Ellipse	public	Draws the ellipse defined by a bounding rectangle on the canvas.
Equals	public	Checks whether the current instance and the Obj parameter are equal.
FieldAddress	public	Returns the address of a published object field.
FillRect	public	Fills the specified rectangle on the canvas using the current brush.
FloodFill	public	Fills an area of the canvas using the current brush.
FrameRect	public	Draws a rectangle using the Brush of the canvas to draw the border.
Free	public	Destroys an object and frees its associated memory, if necessary.
FreeInstance	public	Deallocates memory allocated by a previous call to the NewInstance method.
GetCanvasOrientation	protected	Represents the getter method for the CanvasOrientation property.
GetClipRect	protected	Represents the getter method for the ClipRect property.
GetDisposed	protected	Getter for the Disposed property.
GetHandle	protected	Represents the getter method for the Handle property.
GetHashCode	public	Returns an integer containing the hash code.
GetInterface	public	Retrieves a specified interface.
GetInterfaceEntry	public	Returns the entry for a specific interface implemented in a class.
GetInterfaceTable	public	Returns a pointer to a structure containing all of the interfaces implemented by a given class.
GetNamePath	public	Returns the name of the object as it appears in the Object Inspector.
GetOwner	protected	Returns the owner of an object.
GetPenPos	protected	Represents the getter method for the PenPos property.
GetPixel	protected	Represents the getter method for the Pixels property.
HandleAllocated	public	Indicates whether the TCanvas object has acquired a handle to a device context.
InheritsFrom	public	Determines the relationship of two object types.
InitInstance	public	Initializes a newly allocated object instance to all zeros and initializes the instance's virtual method table pointer.
InstanceSize	public	Returns the size in bytes of each instance of the object type.
LineTo	public	Draws a line on the canvas from PenPos to the point specified by X and Y, and sets the pen position to (X, Y).
Lock	public	Prevents other threads from drawing on the canvas.
MethodAddress	public	Returns the address of a class method by name.
MethodName	public	Returns the name of a class method by address.
MoveTo	public	Changes the current drawing position to the point (X,Y).
NewInstance	public	Allocates memory for an instance of an object type and returns a pointer to that new instance.
Pie	public	Draws a pie-shaped section of the ellipse bounded by the rectangle (X1, Y1) and (X2, Y2) on the canvas.
PolyBezier	public	Draws a set of Bezier curves.
PolyBezierTo	public	Draws a set of Bezier curves and updates the value of PenPos.
Polygon	public	Draws a series of lines on the canvas connecting the points passed in and closing the shape by drawing a line from the last point to the first point.
Polyline	public	Draws a series of lines on the canvas with the current pen, connecting each of the points passed to it in Points.
QualifiedClassName	public	Returns the qualified name of the class.
Rectangle	public	Draws a rectangle on the canvas.
Refresh	public	Deselects the Pen, Brush, and Font from the device context.
RequiredState	protected	Changes the current state of the canvas to meet the given requirements.
RoundRect	public	Draws a rectangle with rounded corners on the canvas.
SafeCallException	public	Handles exceptions in methods declared using the safecall calling convention.
SetBrush	protected	Represents the setter method for the Brush property.
SetFont	protected	Represents the setter method for the Font property.
SetHandle	protected	Represents the setter method for the Handle property.
SetPen	protected	Represents the setter method for the Pen property.
SetPenPos	protected	Represents the setter method for the PenPos property.
SetPixel	protected	Represents the setter method for the Pixels property.
StretchDraw	public	Draws the graphic specified by the Graphic parameter in the rectangle specified by the Rect parameter.
TextExtent	public	Returns the width and height, in pixels, of a string rendered in the current font.
TextHeight	public	Returns the height, in pixels, of a string rendered in the current font.
TextOut	public	Writes a string on the canvas, starting at the point (X,Y), and then updates the PenPos to the end of the string.
TextRect	public	Writes a string inside a clipping rectangle.
TextWidth	public	Returns the width, in pixels, of a string rendered in the current font.
ToString	public	Returns a string containing the class name.
TryLock	public	Locks the canvas if it is currently unlocked.
UnitName	public	Returns the name of the unit where the class is defined.
UnitScope	public	Returns the class's unit scope.
Unlock	public	Decreases the LockCount property, allowing other threads to execute when LockCount reaches 0.