[Overview][Constants][Types][Classes][Procedures and functions][Index] | Reference for unit 'ExtCtrls' (#lcl)

# TPaintBox

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

TPaintBox: a painted rectangular box with defined size and color

## Declaration

Source position: extctrls.pp line 683

`type TPaintBox = class(TGraphicControl)`
`class procedure WSRegisterClass; override;` |  | WSRegisterClass - Register this Class for the current Widget Set
`protected`
`procedure Paint; override;` |  | Virtual Paint method called in response to paint requests.
`protected`
`class 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 (read/write). If not, it usually appears 'greyed-out'
`property Font;` |  | The font to be used for text in this control (read/write).
`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 drop of a control onto this control.
`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 operation
`end;`

## Inheritance

`TPaintBox` |  | TPaintBox: a painted rectangular box with defined size and color
`TGraphicControl` |  | TGraphicControl is the base class for all lightweight controls.
`TControl`
`TLCLComponent` |  | TLCLComponent - base class for LCL components
`TComponent,IUnknown,IInterfaceComponentReference`
`TPersistent`
`TObject`

## Description

TPaintBox: a painted rectangular box with defined size and colour

## See also

HowToUseStdCtrls |  | How to use StdCtrls, ComCtrls or ExtCtrls

The latest version of this document can be found at lazarus-ccr.sourceforge.net.