Unit 'ExtCtrls' Package
[Overview][Types][Classes][Procedures and functions][Index] [#lcl]

TPanel

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

Implements a general purpose container which can hold other components.

Declaration

Source position: extctrls.pp line 1113

type TPanel = class(TCustomPanel)

published

  property Align: TAlign;

  

Specifies the placement of the control inside its Parent.

  property Alignment: TAlignment;

  

Alignment - whether text is left or right justified, or centered.

  property Anchors: TAnchors;

  

The set of anchor definitions for this control.

  property AutoSize: Boolean;

  

Allows automatic adjustment of the size for the control, according to its content.

  property BorderSpacing: TControlBorderSpacing;

  

Determines the inner and outer border spacing for this control.

  property BevelColor: TGraphicsColor;

  

Color used to draw bevels for the panel.

  property BevelInner: TPanelBevel;

  

BevelInner - determines the nature of the Inner Bevel of the panel (whether raised, lowered etc)

  property BevelOuter: TPanelBevel;

  

BevelOuter - determines the nature of the Outer Bevel of the panel (whether raised, lowered etc)

  property BevelWidth: TBevelWidth;

  

BevelWidth - the Width of the panel's bevel in pixels.

  property BidiMode: TBiDiMode;

  

Indicates whether text controls use in bi-directional reading.

  property BorderWidth: TBorderWidth;

  

Width of the Border around the control; default is zero.

  property BorderStyle: TBorderStyle;

  

Indicates the border style displayed around the control.

  property Caption: TCaption;

  

The text displayed for the control.

  property ChildSizing: TControlChildSizing;

  

Parameters for child control arrangement and spacing.

  property ClientHeight: Integer;

  

The height for the client area on the control.

  property ClientWidth: Integer;

  

The width of the client area for the control.

  property Color: TGraphicsColor;

  

Contains the background color for the panel.

  property Constraints: TSizeConstraints;

  

Contains the minimum and maximum Width and Height for the control.

  property DockSite: Boolean;

  

Allows controls to be drag-dock-ed into this control.

  property DoubleBuffered: Boolean;

  

Allows to reduce flicker in the painting of the control.

  property DragCursor: TCursor;

  

The cursor shape shown while the control is dragged.

  property DragKind: TDragKind;

  

The operation when the control is dragged - Drag or Dock.

  property DragMode: TDragMode;

  

Allows the user to drag the control.

  property Enabled: Boolean;

  

Determines whether the control responds to mouse or keyboard input.

  property Font: TFont;

  

The font to be used for text display in this control.

  property FullRepaint: Boolean;

  

FullRepaint - if True, the panel needs to be fully repainted after each change.

  property ParentBackground: Boolean;

  

Indicates if the background from the parent control is used to draw the background for the control.

  property ParentBidiMode: Boolean;

  

Indicates whether the BiDiMode settings in the Parent control are used.

  property ParentColor: Boolean;

  

Indicates if the control is drawn using the color in the parent control.

  property ParentDoubleBuffered: Boolean;

  

Value for the DoubleBuffered property in a Parent control.

  property ParentFont: Boolean;

  

If True, the Font of the control will be the same as the one from the Parent. Default is True.

  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 ShowHint: Boolean;

  

Enables Hint display for the control.

  property TabOrder: TTabOrder;

  

Indicates the navigation order for the control when the user presses the Tab or Shift+Tab key.

  property TabStop: Boolean;

  

Enables or disables navigation using the Tab key.

  property UseDockManager: Boolean;

  

Determines whether a DockManager is used for this DockSite.

  property VerticalAlignment: TVerticalAlignment;

  

Vertical alignment for the caption text displayed on the panel.

  property Visible: Boolean;

  

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

  property Wordwrap: Boolean;

  

Indicates if the Caption can be word wrapped when painted.

  property OnChangeBounds: TNotifyEvent;

  

Event handler signalled when the Bounds for the control have been changed.

  property OnClick: TNotifyEvent;

  

Notification handler for mouse clicks.

  property OnContextPopup: TContextPopupEvent;

  

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

  property OnDockDrop: TDockDropEvent;

  

Notification handler for the drop of a control to be docked.

  property OnDockOver: TDockOverEvent;

  

Event handler for moves of a control over this docksite; determines acceptance or rejection of an possible drop.

  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 OnEndDock: TEndDragEvent;

  

Notification handler for the end of a docking operation.

  property OnEndDrag: TEndDragEvent;

  

Notification handler for the end of a drag operation.

  property OnEnter: TNotifyEvent;

  

Handler for control receiving the focus.

  property OnExit: TNotifyEvent;

  

Handler for control losing the focus; This is a good place for checking the finished user input.

  property OnGetSiteInfo: TGetSiteInfoEvent;

  

Provides information about the DockSite for the control.

  property OnGetDockCaption: TGetDockCaptionEvent;

  

This handler can provide a special DockCaption, different than the Caption default.

  property OnMouseDown: TMouseEvent;

  

Event handler signalled when a mouse down event is handled for the control.

  property OnMouseEnter: TNotifyEvent;

  

Event handler signalled when the mouse pointer has entered the control.

  property OnMouseLeave: TNotifyEvent;

  

Event handler signalled when the mouse pointer has left the control.

  property OnMouseMove: TMouseMoveEvent;

  

Event handler for mouse movement within the control.

  property OnMouseUp: TMouseEvent;

  

Event handler signalled when a mouse up event is handled for the control.

  property OnMouseWheel: TMouseWheelEvent;

  

Event handler for mouse wheel turned.

  property OnMouseWheelDown: TMouseWheelUpDownEvent;

  

Event handler for downward movement of mouse wheel.

  property OnMouseWheelUp: TMouseWheelUpDownEvent;

  

Event handler for upward movement of the mouse wheel.

  property OnMouseWheelHorz: TMouseWheelEvent;

  

Event handler for horizontal movements of the mouse wheel.

  property OnMouseWheelLeft: TMouseWheelUpDownEvent;

  

Event handler signalled for left mouse wheel movements.

  property OnMouseWheelRight: TMouseWheelUpDownEvent;

  

Event handler signalled for right mouse wheel movements.

  property OnPaint: TNotifyEvent;

  

Event handler signalled to paint the control.

  property OnResize: TNotifyEvent;

  

Notification handler for a resize of the control.

  property OnStartDock: TStartDockEvent;

  

Event handler for the start of a docking operation.

  property OnStartDrag: TStartDragEvent;

  

Event handler for the start of a dragging operation.

  property OnUnDock: TUnDockEvent;

  

Event handler signalled before a control is undocked from its DockSite.

end;

Inheritance

TPanel

  

Implements a general purpose container which can hold other components.

|

TCustomPanel

  

The base class for a general container which can hold other objects. It has a customizable border and a central text.

|

TCustomControl

  

The base class for windowed controls which paint themselves.

|

TWinControl

  

Implements a windowed control which can contain other child controls.

|

TControl

  

The base class for visible controls.

|

TLCLComponent

  

|

TObject

Description

TPanel is a TCustomPanel descendant which defines a rectangular area on a form into which components can be placed to group them functionally and geographically. TPanel is a general container for other components, and has a customizable border and caption.

See also

TCustomPanel

  

The base class for a general container which can hold other objects. It has a customizable border and a central text.



CT Web help

CodeTyphon Studio