TPaintBox

type TPaintBox = class(TGraphicControl)

protected

  procedure WSRegisterClass; override;

WSRegisterClass - Register this Class for the current Widget Set

  procedure Paint; override;

Virtual Paint method called in response to paint requests.

  function GetControlClassDefaultSize; override;

Find the default size for this class of controls (by reference to parents)

public

  constructor Create(); override;

Create - constructor for TPaintBox: calls inherited Create then sets initial bounds and style

  property Canvas;

A clipping window to the parent canvas.

published

  property Align;

Used to align the control to the top, bottom, left or right of its client.

  property Anchors;

The set of anchor definitions for this control

  property BorderSpacing;

Determines the border spacing for this control

  property Color;

Determine the colour for the current control

  property Constraints;

Determine Constraints (max and min height and width) for this control

  property DragCursor;

DragCursor - the style of cursor to be used during the Drag process

  property DragMode;

DragMode - whether manual or automatic

  property Enabled;

Whether the control is Enabled. If not, it usually appears 'greyed-out'

  property Font;

The Font to be used for text in this control

  property Hint;

Hint - a small informative pop-up box that appears when the mouse 'hovers' over a control

  property ParentColor;

ParentColor - should the control have the same colour as the parent? Default is true

  property ParentFont;

ParentFont - should the control use the same font as the parent? Default is true

  property ParentShowHint;

ParentShowHint - does the control adopt the same hinting behaviour as its parent? Default is true

  property PopupMenu;

PopupMenu - a context-sensitive menu that pops up when the right mouse button is clicked over this control

  property ShowHint;

Flag to determine: Is hint to be displayed for this control?

  property Visible;

Visible - can the control be seen?

  property OnChangeBounds;

Event handler for a change in bounds of the control

  property OnClick;

Event Handler for mouse click

  property OnDblClick;

Event Handle for mouse double-click

  property OnDragDrop;

Event handler for the Drag-Drop manoeuvre

  property OnDragOver;

Event handler for the case when a control is dragged over another control

  property OnEndDrag;

Event handler for the end of a dragging process

  property OnMouseDown;

Event handler for when a mouse button is pressed down

  property OnMouseMove;

Event handler for mouse movement within the current control

  property OnMouseUp;

Event handler for when the mouse button is released, ie "up"

  property OnMouseEnter;

Event handler for when the mouse enters the area of the current control

  property OnMouseLeave;

Event handler for when the mouse leaves the area of the current control

  property OnMouseWheel;

OnMouseWheel - event handler for a movement of the mouse wheel

  property OnMouseWheelDown;

OnMouseWheelDown - event handler for downward movement of mouse wheel

  property OnMouseWheelUp;

OnMouseWheelUp - event handler for upward movement of mouse wheel

  property OnPaint;

OnPaint - event handler for request to paint canvas

  property OnResize;

Event Handler for resize of control

  property OnStartDrag;

Event handler for start of dragging process

end;

TPaintBox

TPaintBox: a painted rectangular box with defined size and color

TGraphicControl

TGraphicControl is the base class for all lightweight controls.

TControl

TControl - the main ancestor class for visual controls.

TLCLComponent

TObject

HowToUseStdCtrls

How to use StdCtrls, ComCtrls or ExtCtrls