TStatusBar

type TStatusBar = class(TWinControl)

protected

  class procedure WSRegisterClass; override;

Registers this component class with the current WidgetSet.

  procedure BoundsChanged; override;

Called when the Bounds of the control have been changed; override as required.

  procedure CreateWnd; override;

CreateWnd calls inherited method, then fixes handles if needed.

  procedure DestroyWnd; override;

DestroyWnd calls inherited method and frees handles.

  procedure Loaded; override;

Loaded calls inherited method and fixes handles if needed.

  procedure UpdateHandleObject(); virtual;

Updates the handle for the status bar when one or all of the panels on the control need to be updated.

  procedure CalculatePreferredSize(); override;

CalculatePreferredSize calls inherited method then supplies its own values if any are missing.

  procedure SetBiDiMode(); override;

Sets the value in the BiDiMode property.

  function CreatePanel; virtual;

CreatePanel - returns a created Status Panel.

  function CreatePanels; virtual;

CreatePanels - returns a set of created panels.

  function GetPanelClass; virtual;

GetPanelClass - returns a class of status panel.

  function DoSetApplicationHint(); virtual;

DoSetApplicationHint - specifies a hint string and returns True if successful.

  function DoHint; virtual;

Displays the hint for the status bar.

  procedure DrawPanel(); virtual;

DrawPanel calls the OnDrawPanel event handler if assigned.

  procedure LMDrawItem(); message;

Draws the status bar panel when the specified LM_DRAWITEMS message is handled for the control.

  procedure DoAutoAdjustLayout(); override;

Performs actions needed to apply the layout policy in AMode.

public

  constructor Create(); override;

Constructor for the class instance.

  destructor Destroy; override;

Destructor for the class instance.

  procedure InvalidatePanel(); virtual;

Updates the panel at the specified position in the Panels for the status bar.

  procedure BeginUpdate;

Starts an update process for the status bar.

  procedure EndUpdate;

Finishes an update process for the status bar.

  function ExecuteAction(); override;

ExecuteAction: if required action is a Hint-related, sets the Hint in place, otherwise calls inherited method.

  function GetPanelIndexAt();

Gets the ordinal position for the panel at the specified coordinates.

  function SizeGripEnabled;

SizeGripEnabled - returns True if the size-grip (an area at the bottom of the statusbar where a mouse can grip to change the size) is enabled.

  function UpdatingStatusBar;

Returns True if the status bar is being updated.

  property Canvas: TCanvas; [r]

The Canvas where the Panels for the StatusBar are painted.

published

  property Action: TBasicAction;

The Action associated with the control.

  property Align: TAlign;

Specifies the placement of the control inside its Parent.

  property Anchors: TAnchors;

The set of anchor definitions for this control.

  property AutoHint: Boolean; [rw]

Indicates if a hint is automatically shown when the mouse hovers over the status bar.

  property AutoSize: Boolean;

Indicates if the control is automatically resized to fill the area on its aligned edge.

  property BiDiMode: TBiDiMode;

Indicates whether text controls use in bi-directional reading.

  property BorderSpacing: TControlBorderSpacing;

Determines the inner and outer border spacing for this control.

  property BorderWidth: TBorderWidth;

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

  property Color: TColor;

The background color of the control.

  property Constraints: TSizeConstraints;

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

  property DragCursor: TCursor;

The cursor shape shown during a drag operation.

  property DragKind: TDragKind;

Indicates the action performed for a drag operation: drag-and-drop or drag-and-dock.

  property DragMode: TDragMode;

Determines how a drag operation is started for 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 Panels: TStatusPanels; [rw]

Collection with the TStatusPanel instances defined for the control.

  property ParentBiDiMode: Boolean;

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

  property ParentColor: Boolean;

Use the Color from the Parent control, when enabled.

  property ParentFont: Boolean;

Indicates if the Font from the Parent control is used in the control.

  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 SimpleText: TCaption; [rw]

SimpleText - a character string containing the information to be displayed in the Status Bar.

  property SimplePanel: Boolean; [rw]

Indicates if a single panel is displayed in the status bar with the text in SimpleText.

  property SizeGrip: Boolean; [rw]

Displays a sizing grip used to resize the parent form.

  property ShowHint: Boolean;

Enables Hint display for the control.

  property UseSystemFont: Boolean; [rw]

Indicates the System font is used for the control.

  property Visible: Boolean;

Indicates if the control is visible.

  property OnClick: TNotifyEvent;

Notification handler for mouse clicks.

  property OnContextPopup: TContextPopupEvent;

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

  property OnCreatePanelClass: TSBCreatePanelClassEvent; [rw]

Event handler signalled to get the class used to create new panels in the status bar.

  property OnDblClick: TNotifyEvent;

Event handler signalled when a mouse double click occurs in the control.

  property OnDragDrop: TDragDropEvent;

Event handler signalled when an object is dropped onto the control.

  property OnDragOver: TDragOverEvent;

Event handler signalled when a control is dragged over the control instance.

  property OnDrawPanel: TDrawPanelEvent; [rw]

Event handler signalled to draw a panel in the status bar.

  property OnEndDock: TEndDragEvent;

Event handler signalled for the end of a drag-dock operation.

  property OnEndDrag: TEndDragEvent;

Event handler signalled for the end of a drag-drop operation.

  property OnHint: TNotifyEvent; [rw]

Event handler for showing a hint when required.

  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 signalled when the mouse pointer is moved in 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 signalled for a downward movement of the mouse wheel.

  property OnMouseWheelUp: TMouseWheelUpDownEvent;

Event handler signalled for an upward movement of the mouse wheel.

  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 signalled for the start of a dragging operation.

end;

TStatusBar

Displays a panel along the bottom of a form with current status information.

TWinControl

Implements a windowed control which can contain other child controls.

TControl

The base class for visible controls.

TLCLComponent

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

TComponent,IUnknown,IInterfaceComponentReference

TPersistent,IFPObserved

TObject