VScrollBar control

A VScrollBar is a vertical bar with arrows at either end and a
scroll box. Typically, you use a VScrollBar control as a slider control
for users to specify a value on a continuous scale, or as a way to display
information graphically to the user.

Usage note

The VScrollBar control is not the vertical scroll bar that
displays to allow the user to scroll through information in a control or
window.

Properties

VScrollBar property	Datatype	Description
AccessibleDescription	String	A description of the control and/or its purpose for use by accessibility tools such as readers for visually impaired users.
AccessibleName	String	A label that briefly describes the control, such as the text in a button or the name of a menu item.
AccessibleRole	AccessibleRole (enumerated)	Describes what kind of user interface element the control is.
BringToTop	Boolean	Specifies whether PowerBuilder moves the control to the top of the front-to-back order of the window. Values are: TRUE — Control moved to top. FALSE — Control not moved to top.
ClassDefinition	PowerObject	An object of type PowerObject containing information about the class definition of the object or control.
DragAuto	Boolean	Specifies whether PowerBuilder puts the control automatically into Drag mode. Values are: TRUE — When the control is clicked, the control is automatically in Drag mode. FALSE — When the control is clicked, the control is not automatically in Drag mode. You have to manually put the control into Drag mode by using the Drag function.
DragIcon	String	Specifies the name of the stock icon or the file containing the icon you want to display when the user drags the control (the ICO file). The default icon is a box the size of the control. When the user drags the control, the icon displays when the control is over an area in which the control can be dropped (a valid drop area). When the control is over an area that is not a valid drop area, the No-Drop icon displays.
Height	Integer	Specifies the height of the control, in PowerBuilder units.
MaxPosition	Integer	Specifies the value of the Position property when the scroll box is at the bottom of the scroll bar.
MinPosition	Integer	Specifies the value of the Position property when the scroll box is at the top of the scroll bar.
Pointer	String	Specifies the name of the stock pointer or the file containing the pointer used for the control.
Position	Integer	Specifies the value between MinPosition and MaxPosition that indicates the position of the scroll box.
StdWidth	Boolean	Specifies whether the standard scroll bar width is used for the VScrollBar. Values are: TRUE — Standard width used. FALSE — Standard width not enforced for the control.
TabOrder	Integer	Specifies the tab value of the control within the window (0 means the user cannot tab to the control).
Tag	String	Specifies the tag value assigned to the control.
Visible	Boolean	Specifies whether the control is visible. Values are: TRUE — Control is visible. FALSE — Control is not visible.
Width	Integer	Specifies the width of the control, in PowerBuilder units.
X	Integer	Specifies the X position (the distance from the left edge of the window), in PowerBuilder units.
Y	Integer	Specifies the Y position (the distance from the top of the window), in PowerBuilder units.

Events

VScrollBar event	Occurs
Constructor	Immediately before the Open event occurs in the window
Destructor	Immediately after the Close event occurs in the window
DragDrop	When a dragged control is dropped on the control
DragEnter	When a dragged control enters the control
DragLeave	When a dragged control leaves the control
DragWithin	When a dragged control is within the control
GetFocus	Just before the control receives focus (before it is selected and becomes active)
Help	When the user presses the F1 key or drags the context help button (question mark) from the title bar to a menu item or control
LineDown	When the down arrow of the control is clicked
LineUp	When the up arrow of the control is clicked
LoseFocus	When the control loses focus (becomes inactive)
Moved	When the scroll box is moved (use the Position property to determine the new location)
Other	When a Windows message occurs that is not a PowerBuilder event.
PageDown	When the open space below the scroll box is clicked
PageUp	When the open space above the scroll box is clicked
RButtonDown	When the right mouse button is pressed on the control

Functions

VScrollBar function	Datatype returned	Description
ClassName	String	Returns the name assigned to the control
Drag	Integer	Starts or ends the dragging of the control
GetContextService	Integer	Creates a reference to a context-specific instance of the specified service
GetParent	PowerObject	Returns a reference to the name of the parent object
Hide	Integer	Makes the control invisible
Move	Integer	Moves the control to a specified location
PointerX	Integer	Returns the distance of the pointer from the left edge of the control
PointerY	Integer	Returns the distance of the pointer from the top of the control
PostEvent	Boolean	Adds an event to the end of the message queue for the control
Print	Integer	Prints the control
Resize	Integer	Changes the size of the control
SetFocus	Integer	Sets focus to the specified control
SetPosition	Integer	Specifies the position of the control in the front-to-back order of the window
SetRedraw	Integer	Controls automatic redrawing of the control after each change in its properties
Show	Integer	Makes the control visible
TriggerEvent	Integer	Triggers a specified event in the control and executes the script for the event
TypeOf	Object	Returns the type of the control

Document get from Powerbuilder help

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Powerbuilder Documentation 2017

August 20, 2023

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