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

TArrow

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

TArrow - an arrow symbol widely used in forms.

Declaration

Source position: arrow.pp line 33

type TArrow = class(TIndustrialBase)

protected

  class function GetControlClassDefaultSize; override;

  

Returns the default size for this class of controls (when added to a form).

  procedure Paint; override;

  

Implements the default handler used to draw the control.

public

  constructor Create(); override;

  

Constructor for the class instance.

published

  property Align: TAlign;

  

Specifies the placement of the control inside its Parent.

  property Anchors: TAnchors;

  

The set of anchor definitions for this control.

  property ArrowColor: TColor; [rw]

  

Color used to draw the arrow symbol on the control.

  property ArrowType: TArrowType; [rw]

  

ArrowType - pointing up, down, left or right.

  property ArrowPointerAngle: Integer; [rw]

  

Size of the angle that forms the arrow pointer.

  property BorderSpacing: TControlBorderSpacing;

  

Determines the inner and outer border spacing for this control.

  property Color: TColor;

  

The background color of the control.

  property Constraints: TSizeConstraints;

  

The minimum and maximum Width and Height for the control.

  property Enabled: Boolean;

  

Determines whether the control reacts on mouse or keyboard input.

  property Hint: TTranslateString;

  

The text to show in the Hint window for the control.

  property OnChangeBounds: TNotifyEvent;

  

Event handler for a change of the Bounds of the control.

  property OnClick: TNotifyEvent;

  

Notification handler for mouse clicks.

  property OnContextPopup: TContextPopupEvent;

  

Invoked when a context-sensitive pop-up menu is requested.

  property OnDblClick: TNotifyEvent;

  

Event Handler for double mouse clicks.

  property OnDragDrop: TDragDropEvent;

  

This handler determines the action on an drop onto this control, in a drag-drop operation.

  property OnDragOver: TDragOverEvent;

  

Event handler for a control being dragged over this control.

  property OnEndDrag: TEndDragEvent;

  

Notification handler for the end of a dragging operation.

  property OnMouseDown: TMouseEvent;

  

Event handler for mouse button going down.

  property OnMouseEnter: TNotifyEvent;

  

Event handler for mouse entering the area of the control.

  property OnMouseLeave: TNotifyEvent;

  

Event handler for mouse leaving the area of the control.

  property OnMouseMove: TMouseMoveEvent;

  

Event handler for mouse movement within the control.

  property OnMouseUp: TMouseEvent;

  

Event handler for mouse button going up.

  property OnMouseWheel: TMouseWheelEvent;

  

Event handler for mouse wheel turned.

  property OnMouseWheelDown: TMouseWheelUpDownEvent;

  

The base class for visible controls.

  property OnMouseWheelUp: TMouseWheelUpDownEvent;

  

The base class for visible controls.

  property OnMouseWheelHorz: TMouseWheelEvent;

  

The base class for visible controls.

  property OnMouseWheelLeft: TMouseWheelUpDownEvent;

  

The base class for visible controls.

  property OnMouseWheelRight: TMouseWheelUpDownEvent;

  

The base class for visible controls.

  property OnPaint: TNotifyEvent;

  

Event handler signalled to paint the control.

  property OnResize: TNotifyEvent;

  

Notification handler for a resize of the control.

  property OnStartDrag: TStartDragEvent;

  

Event handler for the start of a dragging operation.

  property ParentColor: Boolean;

  

Use the Color from the Parent control, when enabled.

  property ParentShowHint: Boolean;

  

If true, the value of ShowHint for the control will be the same as the one from the Parent. Default is true.

  property PopupMenu: TPopupMenu;

  

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

  property ShadowType: TShadowType; [rw]

  

ShadowType - the type of shadowing: None, In, Out, EtchedIn, EtchedOut.

  property ShadowColor: TColor; [rw]

  

Color used to draw the shadow on the control.

  property ShowHint: Boolean;

  

Enables the Hint display.

  property Visible: Boolean;

  

Allows the control, and all of its children, to be displayed or hidden.

end;

Inheritance

TArrow

  

TArrow - an arrow symbol widely used in forms.

|

TIndustrialBase

  

|

TGraphicControl

  

TGraphicControl is the base class for all lightweight controls.

|

TControl

  

The base class for visible controls.

|

TLCLComponent

  

The base class for LCL components which have an associated widget.

|

TComponent

?

TObject

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