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Sunday, August 26, 2007

 

twolscrollbar

TWOLScrollBox object
Unit: WOLGUI36.
Descendant of TWOLVisualControl. A scoll box with a scroll bar.

Public Methods and Events:

constructor Create (AOwner: TWOLRoot); override;
destructor Destroy; override;
procedure CreateGUIParams (to var aParams: TWOLParams; const wClass: TWOLClassType); override;
procedure CreateWnd (to var aParams: TWOLParams); override;
procedure AllocResources; override;
procedure FreeResources; override;
function WndPaint (to var Message: TWOLMessage): Boolean; override;
function WndCommand (to var Message: TWOLMessage): Boolean; override;
function WndProc (to var Message: TWOLMessage): Boolean; override;

Public properties and Events:

AutoPage: Boolean (For Reading and Writing)
Property that indicates the automatic creation of a page and position in according to the size of the object window.

RefreshOnScroll: Boolean (For Reading and Writing)
Property that it indicates that the window is refreshed when the scroll bar is used.

VertScrollBar: TWOLScrollBoxBar (For Reading and Writing)
Property that loads a vertical scroll bar.

HorzScrollBar: TWOLScrollBoxBar (For Reading and Writing)
Property that loads a horizontal scroll bar.

VirtualHeight: TWOLSmallInt (For Reading and Writing)
Property that loads the virtual height of the scroll bar.

VirtualWidth: TWOLSmallInt (For Reading and Writing)
Property that loads the virtual width of the scroll bar.

OnScroll: TWOLScrollEvent (For Reading and Writing)
Event when the box of scroll bar is rolled.

OnClick
OnMouseMove
OnDblClick
OnPaint
OnPaintBkG
Border
WindowAlign
Left
Top
Width
Height
Color
Font
Cursor
Visible
Enabled
Hint
Tabstop
TabOrder
Ctrl3D
TWOLSCROLLBOXBAR
TWOLScrollBoxBar is an object that can represent the bars of a ScrollBox. It does not have to be created, therefore when the roller bar is created, it is already made.

Public methods and Events:

constructor Create (Owner: TWOLScrollBox; aKind: TWOLScrollBarSet);
method Used to create the object. aKind indicates the type (horizontal or vertical) of the bar.
destructor Destroy; override;
method Used to destroy the object.

Properties of the Object:

Parent: TWOLHandle (For Reading and Writing)
Property that loads the handle of the scroll bar box.
OwnerKind: TWOLByte (Only for Reading)
Property that loads the type of owner of the object.
Handle: TWOLHandle (Only for Reading)
Property that loads the handle of the object.
Height: TWOLSmallInt (Only for Reading)
Property that specifies the height of the bar.
Width: TWOLSmallInt (Only for Reading)
Property that specifies the width of the bar.
Scroll: TWOLCardinal (Only for Reading)
Property that loads the scroll bar code when the event occurs.
CodeEvent: TWOLScrollBarCode (Only for Reading)
Property that loads the code of a scroll bar event.
Kind: TWOLScrollBarSet (Only for Reading)
Property that loads the scoll bar type.
Mask: TWOLSmallInt (Only for Reading)
Used property internally.
TrackPos: TWOLSmallInt (Only for Reading)
Property that loads the position of scroll bar.
DiffPos: TWOLSmallInt (Only for Reading)
Used property internally.
Align: TWOLByte (For Reading and Writing)
Property of alignment of the bar used internally.
SmallChange: TWOLSmallInt (For Reading and Writing)
Property that loads the minimum value change allowed by the bar.
LargeChange: TWOLSmallInt (For Reading and Writing)
Property that indicates the max change allowed for the scroll bar.
Visible: TWOLBoolean (For Reading and Writing)
Property that indicates the visibility of the scroll bar.
Min: TWOLSmallInt (For Reading and Writing)
Property that indicates the minimum value used by the scroll bar.
Max: TWOLSmallInt (For Reading and Writing)
Property that indicates the maximum value used by the bar. Generally virtual width is the value of the height/.
Page: TWOLSmallInt (For Reading and Writing)
Value of the pointer size of the pointer of the scroll bar.
Pos: TWOLLongint (For Reading and Writing)
Value of the position of the bar of the scroll bar.

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