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CheckBox control – PB Docs 2019 – PowerBuilder Library

CheckBox control – PB Docs 2019

CheckBox control

CheckBox controls are small square boxes used to set independent
options. When they are selected, they display a mark (typically, either an
X or a check mark). When they are not selected, they are empty.

Since check boxes are independent of each other, you can group them
without affecting their behavior. Grouping check boxes makes the window
easier for the user to understand and use.

Typically, check boxes have two states: on and off. You can also use
a third state, unknown or unspecified. In the third state, the check is
grayed.

Properties

CheckBox 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.

Automatic

Boolean

Specifies whether the control displays a mark when
the user clicks it. Values are:

TRUE — Displays
mark when clicked.

FALSE — Does not display mark
when clicked.

BackColor

Long

Specifies the numeric value of the background
color: -2 to 16,777,215. For more information about color, see
the section called “RGB” in PowerScript Reference.

BorderStyle

BorderStyle (enumerated)

Specifies the style of the border of the control.
Values
are:

StyleLowered!

StyleRaised!

BringToTop

Boolean

Specifies whether PowerBuilder moves the control to
the top of the front-to-back order. Values are:

TRUE
— Move to the top.

FALSE — Do not move to the
top.

Checked

Boolean

Specifies whether the control is selected. Values
are:

TRUE — Control is selected.

FALSE
— Control is not selected.

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 put the
control into Drag Mode manually 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.

Enabled

Boolean

Specifies whether the control is enabled (can be
clicked). Values are:

TRUE — Control can be
clicked.

FALSE — Control cannot be
clicked.

FaceName

String

Specifies the name of the typeface in which the
text of the control displays; for example, arial or
courier.

FontCharSet

FontCharSet (enumerated)

Specifies the font character set used for the text
in the control. The application must be running on an
appropriate version of PowerBuilder under an operating system
that supports the selected character set. For a complete list of
possible values, see the list of properties for the FontCharSet
variable on the Enumerated tab page of the
Browser.

FontFamily

FontFamily (enumerated)

Specifies the font family (type style) used for the
text in the control. Values
are:

AnyFont!

Decorative!

Modern!

Roman!

Script!

Swiss!

FontPitch

FontPitch (enumerated)

Specifies the pitch (spacing) of the font used for
the text in the control. Values
are:

Default!

Fixed!

Variable!

Height

Integer

Specifies the height of the control, in
PowerBuilder units.

Italic

Boolean

Specifies whether the text in the control is
italic. Values are:

TRUE — Text is
italic.

FALSE — Text is not italic.

LeftText

Boolean

Specifies whether the text displays on the left of
the control. Values are:

TRUE — Text displays on
left.

FALSE — Text displays on
right.

Typically, you set this property to false so
the text appears on the right of the control.

Pointer

String

Specifies the name of the stock pointer or the file
containing the pointer used for the control.

RightToLeft

Boolean

Specifies that characters should be displayed in
right-to-left order. The application must be running on an
operating system that supports right-to-left display. Values
are:

TRUE — Characters display in right-to-left
order.

FALSE — Characters display in left-to-right
order.

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.

Text

String

Specifies the text that displays next to the
control.

TextColor

Long

Specifies the numeric value of the color used for
text: -2 to 16,777,215. For more information about color, see
the section called “RGB” in PowerScript Reference.

TextSize

Integer

Specifies the size of the text in the control, in
points. For backward compatibility, the size is stored as a
negative number; for example, 10-point text size is stored as
-10.

ThirdState

Boolean

Specifies whether the control is in the third state
when the control has been defined to have three states. Values
are:

TRUE — Control is in third
state.

FALSE — Control is not in third
state.

ThreeState

Boolean

Specifies whether the control has three states.
Typically, CheckBox controls have only two states, such as on
and off. Values are:

TRUE — Control has three
states.

FALSE — Control does not have three
states.

Underline

Boolean

Specifies whether the text in the control is
underlined. Values are:

TRUE — Text is
underlined.

FALSE — Text is not
underlined.

Visible

Boolean

Specifies whether the control is visible. Values
are:

TRUE — Control is visible.

FALSE
— Control is not visible.

Weight

Integer

Specifies the stroke weight of the text in the
control; for example, 400 for normal or 700 for
bold.

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

CheckBox event

Occurs

Clicked

When the control is clicked (selected or
unselected)

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

LoseFocus

When the control loses focus (becomes
inactive)

Other

When a Windows message occurs that is not a
PowerBuilder event

RButtonDown

When the right mouse button is pressed on the
control

Functions

CheckBox 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 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


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