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Tab control – PB Docs 2019 – PowerBuilder Library

Tab control – PB Docs 2019

Tab control

A Tab control contains tab pages, which are user objects that
contain controls. Tab pages can be defined within the Tab control or they
can be defined in the User Object painter and inserted into the Tab
control.

Each tab page can have its own label, picture, and background
color.

All tab pages share the same font settings.

Tab Position controls where the tabs on the tab pages are displayed.
Tabs can be displayed on any one of the four edges of the Tab control.
They can also be displayed on opposite edges with the tabs before or after
the selected tab jumping to the other edge.

Properties

Tab 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.

Alignment

Alignment (enumerated)

Specifies the alignment of the text labeling all
the tabs. Values
are:

Left!

Center!

Right!

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.

BoldSelectedText

Boolean

Specifies whether the text for the selected tab is
bold. Values are:

TRUE — The text on the selected
tab is bold.

FALSE — The text on the selected tab
has the same setting as the other tabs.

BringToTop

Boolean

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

TRUE — Moves to the top.

FALSE —
Does not move to the top.

ClassDefinition

PowerObject

An object of type PowerObject containing
information about the class definition of the object or
control.

CreateOnDemand

Boolean

Specifies whether PowerBuilder creates graphical
representations of controls on all tab pages when the Tab
control is created. Values are:

TRUE — Graphical
representations of tab pages are not created until the tab page
is selected.

FALSE — (Default) Graphical
representations of tab pages are created when the Tab control is
created.

Control[ ]

UserObject

Specifies the array of tab pages within the Tab
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.

Enabled

Boolean

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

TRUE — Can be
selected.

FALSE — Cannot be
selected.

FaceName

String

Specifies the name of the typeface used for the
text labels on tabs (for example, Arial or Courier). Only
TrueType fonts display correctly on vertical
tabs.

FixedWidth

Boolean

Specifies whether tabs have a fixed width, meaning
they do not shrink to the length of their text labels. Values
are:

TRUE — Tab width is fixed; the width is
determined by the longest text label.

FALSE — Tab
width adjusts to the length of the text labels.

FocusOnButtonDown

Boolean

Specifies whether each tab gets focus when the user
clicks on it. Values are:

TRUE — The tab the user
clicks on gets focus; a dotted rectangle marks the
tab.

FALSE — The tab does not get
focus.

In either case, the selected tab page comes
to the front.

The dotted focus rectangle appears on
the tab when the user clicks on it a second and subsequent times
even if this property is set to false.

FontCharSet

FontCharSet (enumerated)

Specifies the character set for the text labels on
the tabs. 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) for the text
labels on the tabs. Values
are:

AnyFont!

Decorative!

Modern!

Roman!

Script!

Swiss!

FontPitch

FontPitch (enumerated)

Specifies the pitch (spacing) of the font for text
labels on the tabs. Values
are:

Default!

Fixed!

Variable!

Height

Integer

Specifies the height of the control, in
PowerBuilder units.

Italic

Boolean

Specifies whether the text on the tabs is italic.
Values are:

TRUE — Text labels are
italic.

FALSE — Text labels are not
italic.

Multiline

Boolean

Specifies whether the tabs can appear in more than
one row. Values are:

TRUE — If there is not room
for all the tabs in a single row, the tabs are arranged in
multiple rows.

FALSE — If there is not room for all
the tabs in a single row, a dual arrow control displays to allow
the user to scroll to tabs that do not fit.

PerpendicularText

Boolean

Specifies whether the tab labels are drawn
perpendicular to the tab page. Values are:

TRUE —
Text is perpendicular to the edge of the tab page, resulting in
narrower tabs.

FALSE — Text runs along the edge of
the tab page, resulting in wider tabs.

PictureOnRight

Boolean

Specifies whether a picture that is part of the tab
label is to the right or left of the text. Values
are:

TRUE — The picture is on the
right.

FALSE — The picture is on the
left.

Pointer

String

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

PowerTips

Boolean

Specifies whether PowerTipText for a tab page is
displayed as a PowerTip (a pop-up label for the tab) when the
mouse pointer pauses over the tab. PowerTips are useful if the
tabs are labeled with pictures. Values are:

TRUE —
PowerTipText, if any, displays as a pop-up label for each
tab.

FALSE — No PowerTips are
displayed.

RaggedRight

Boolean

Specifies whether tabs are stretched so that they
fill space along the edge of the control. Values
are:

TRUE — Tabs remain the size determined by
their label text and the FixedWidth property.

FALSE
— Tabs are stretched to fill the edge.

SelectedTab

Integer

Specifies the index number of the selected tab. The
default value is 1, and the integer must be in the range 1 to N,
where N is the number of tab pages.

ShowPicture

Boolean

Specifies whether the picture selected for each tab
is displayed. Values are:

TRUE — The picture for
each tab, if any, is displayed.

FALSE — No pictures
are displayed.

ShowText

Boolean

Specifies whether the text specified for each tab
label is displayed. Values are:

TRUE — The text for
each tab is displayed.

FALSE — The text for each
tab is not displayed.

TabOrder

Integer

Specifies the tab value of the control within the
window (0 means the user cannot tab to the
control).

TabPosition

TabPosition (enumerated)

Specifies where the tabs appear around the Tab
control. Values are:

  • TabsOnBottom! — Tabs are at the bottom.

  • TabsOnBottomAndTop! — Tabs before the selected tab
    are on top; the selected tab itself and tabs after it are
    on the bottom.

  • TabsOnLeft! — Tabs are on the left.

  • TabsOnLeftAndRight! — Tabs before the selected tab
    and the selected tab itself are on the left; tabs after
    the selected tab are on the right.

  • TabsOnRight! — Tabs are on the right.

  • TabsOnRightAndLeft! — Tabs before the selected tab
    are on the left; the selected tab and tabs after it are on
    the right.

  • TabsOnTop! — Tabs are on top.

  • TabsOnTopAndBottom! — Tabs before the selected tab
    and the selected tab itself are on top; tabs after the
    selected tab are on the bottom.

Tag

String

Specifies the tag value assigned to the
control.

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.

Underline

Boolean

Specifies whether the text on the tabs is
underlined. Values are:

TRUE — Text labels are
underlined.

FALSE — Text labels are not
underlined.

Visible

Boolean

Specifies whether the control is visible. Values
are:

TRUE — Is visible.

FALSE — 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

Tab Event

Occurs

Clicked

When the user clicks in the Tab control, except in
the display area of the tab page. For the tab page, the Clicked
event (pbm_bnclicked) for the user object is triggered
instead.

Constructor

When the object is created, immediately before the
Open event occurs in the window.

Destructor

When the object is destroyed, immediately after the
Close event occurs in the window.

DoubleClicked

When the user double-clicks in the Tab control,
except in the display area of the tab page. For the tab page,
the DoubleClicked event (pbm_bndoubleclicked) for the user
object is triggered instead.

DragDrop

When a dragged control is dropped in the tab area
of the control.

DragEnter

When a dragged control enters the control,
including entering the narrow border around the display
area.

DragLeave

When a dragged control leaves the control,
including leaving by crossing into the tab page display
area.

DragWithin

When a dragged control is within the control, but
not within the tab page display area.

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.

Key

When the user presses a key.

LoseFocus

When the control loses focus (becomes
inactive).

Other

When a Windows message occurs that is not a
PowerBuilder event.

RightClicked

When the user clicks with the right mouse button in
the Tab control, except in the display area of the tab page. If
the user right-clicks on the tab page, the controls or user
objects on the tab page get an RButtonDown event.

RightDoubleClicked

When the user double-clicks with the right mouse
button in the Tab control, except in the display area of the tab
page. For the tab page, the RightDoubleClicked event
(pbm_rbuttondblclk) for the user object is triggered
instead.

SelectionChanged

Just after the selection changes to another tab.
SelectionChanged is triggered when the tab is created and the
initial selection is established.

SelectionChanging

Just before the selection changes to another tab.
To prevent the selection from changing, return 1 in the event
script. SelectionChanging is triggered when the tab is created
and the initial selection is established.

Functions

Tab function

Datatype returned

Description

ClassName

String

Returns the name assigned to the
control.

CloseTab

Integer

Closes a tab page that was opened with the OpenTab
function.

Drag

Integer

Starts or ends 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 parent of the Tab
control.

Hide

Integer

Makes the control invisible.

Move

Integer

Moves the control to a specified
location.

MoveTab

Integer

Moves a tab to a new position in the order of
tabs.

OpenTab

Integer

Opens the specified user object as a tab page,
making its properties available to scripts.

OpenTabWithParm

Integer

Opens the user object as a tab page, making its
properties available to scripts, and stores a parameter in the
Message object.

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

Integer

Adds the specified event to the end of the event
queue for the specified object.

Print

Integer

Prints the contents of the control. You can specify
a range of pages and other settings.

Resize

Integer

Changes the size of the tab page to the size
specified in the width and height arguments.

SelectTab

Integer

Selects a tab page.

SetFocus

Integer

Sets focus to the Tab control.

SetPosition

Integer

Specifies the control’s position in the
front-to-back order within the window.

SetRedraw

Integer

Controls automatic redrawing of the
control.

Show

Integer

Makes the control visible.

TabPostEvent

Integer

Adds an event to the end of the message queues for
each of the tab pages.

TabTriggerEvent

Integer

Sends an event to every tab page and, for each
page, executes the script associated with the
event.

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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