InkPicture control – PB Docs 2017

InkPicture control

An InkPicture control collects pen input (“ink”) on a Tablet PC and
layers it on a picture. It is used to collect ink annotations to a picture
or signatures. It has no handwriting recognition capability.

Using with animation features

InkPicture controls may not paint correctly when you use animation
features.

Properties

InkPicture property

Datatype

Description

AutoErase

Boolean

Specifies whether the auto erase feature available
on some styluses is turned on. Values are:

TRUE —
AutoErase is turned on.

FALSE — AutoErase is turned
off (default).

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”.

Border

Boolean

Specifies whether the control has a border. Values
are:

TRUE — Control has a border.

FALSE
— Control does not have a border.

BorderStyle

BorderStyle (enumerated)

Specifies the border style of the control. Values
are:

StyleBox!

StyleLowered!

StyleRaised!

StyleShadowBox!

BringToTop

Boolean

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

ClassDefinition

PowerObject

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

CollectionMode

InkCollectionMode (enumerated)

Specifies whether ink only, gestures only, or ink
and gestures are collected. Values are:

GestureOnly!
— Only gestures are collected.

InkOnly! — Only ink
is collected (default).

InkAndGesture! — Ink and
gestures are collected.

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.

DynamicRendering

Boolean

Specifies whether the ink is rendered (displayed in
the control) as it is drawn. The default is true.

EditMode

InkPicEditMode

Specifies whether the editing mode of the control
is set for drawing ink, editing ink, or deleting ink. Values
are:

InkPicDeleteMode! — Ink is
deleted.

InkPicInkMode! — Ink can be drawn
(default).

InkPicSelectMode! — Ink is selected for
editing.

Enabled

Boolean

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

TRUE — Control can be
clicked.

FALSE — Control cannot be
clicked.

EraserMode

Integer

Specifies whether ink is removed by stroke or
point. Values are:

0 — Ink is removed by stroke
(default).

1 — Ink is removed by
point.

EraserWidth

Integer

Specifies the width of the eraser pen tip in
pixels. The default is 212 pixels.

Height

Integer

Specifies the height of the control, in
PowerBuilder units.

HighContrastInk

Boolean

Specifies whether ink is rendered in a single color
when the system is in high contrast mode and draws the selection
rectangle and handles in high contrast. Values
are:

TRUE — Ink is rendered in a single color in
high contrast mode (default).

FALSE — Ink is not
rendered in a single color in high contrast mode.

IgnorePressure

Boolean

A drawing attribute that specifies whether the
drawn ink gets wider as the pressure of the pen tip on the
tablet surface increases. Values are:

TRUE —
Pressure from the pen tip is ignored.

FALSE — The
width of the ink increases with the pressure of the pen tip
(default).

InkAntiAliased

Boolean

A drawing attribute that specifies whether the
foreground and background colors along the edge of the drawn ink
are blended (antialiased) to make the stroke smoother and
sharper. Values are:

TRUE — The ink stroke appears
smoother and sharper (default).

FALSE — The ink
stroke is not antialiased.

InkColor

Long

A drawing attribute that specifies the current ink
color. The default color is black.

InkEnabled

Boolean

Specifies whether the InkPicture control collects
pen input. Values are:

TRUE — The control collects
pen input (default).

FALSE — The control does not
collect pen input and no pen-related events fire.

InkFileName

String

Specifies the name of the file that the ink was
loaded from.

InkHeight

Integer

A drawing attribute that specifies the height of
the side of the rectangular pen tip in pixels. The default is
1.

InkTransparency

Integer

A drawing attribute that specifies the transparency
of drawn ink. The range of values is from 0 for totally opaque
(the default) to 255 for totally transparent.

InkWidth

Integer

A drawing attribute that specifies the width of the
pen in pixels. The default is 53. If the IgnorePressure property
is not set, the actual width varies between .5 times the value
of the Width property for minimum pressure and 1.5 times its
value for maximum pressure.

MarginX

Integer

Specifies the x-axis margin around the control in
PowerBuilder units. The default value is 0.

MarginY

Integer

Specifies the y-axis margin around the control in
PowerBuilder units. The default value is 0.

PenTip

InkPenTip (enumerated)

A drawing attribute that specifies whether the pen
tip is round or rectangular. Values are:

PenTipBall!
— The pen tip is round (default).

PenTipRectangle!
— The pen tip is rectangular.

PictureFileName

String

Specifies the name of a file that contains the
picture for the control. The default is an empty string.
Supported formats are BMP, GIF, JPEG, PNG, and
TIF.

PictureSizeMode

DisplaySizeMode

Specifies how the picture is displayed in the
control. Values are:

InkPicAutoSize! — The control
is resized to display the entire
picture.

InkPicCentered! — The picture is centered
in the control.

InkPicNormal! — The picture is
displayed in the upper-left corner of the control and any part
of the picture that does not fit in the control is clipped
(default).

InkPicStretched! — The picture is
stretched to fill the control.

Pointer

String

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

PowerTipText

String

Specifies a PowerTip for the
control.

Status

InkPicStatus

Read-only property available at runtime that
provides the current status of the control so that the user does
not need to monitor the Stroke event. Values are CollectingInk!
and Idle!.

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
(default).

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

InkPicture event

Occurs

Clicked

When the left mouse button is clicked in the
control

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

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

Gesture

When a gesture has occurred

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

SelectionChanged

When an item in the control is
selected

SelectionChanging

When the selection is changing. Return 1 to prevent
the selection from changing or 0 to allow it

SizeChanged

When the control has been resized

Stroke

When a stroke has occurred

Functions

InkPicture function

Datatype returned

Description

ClassName

String

Returns the name of the control.

Drag

Integer

Starts or ends the dragging of a InkEdit
item.

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

Hides the specified InkEdit item.

LoadInk

Integer

Loads ink from a file or blob.

LoadPicture

Integer

Loads a picture from a file or blob.

Move

Integer

Moves a control or object to a specified
location.

PointerX

Integer

Determines the distance from the left edge of an
object to the pointer location.

PointerY

Integer

Determines the distance from the top edge of an
object to the pointer location.

PostEvent

Boolean

Adds the event to the end of the event queue of an
object.

Print

Integer

Includes this object in a print job. Only the part
visible on the screen is printed.

ResetInk

Integer

Clears ink from the control.

ResetPicture

Integer

Clears a picture from the control.

Resize

Integer

Resizes a control to the specified
dimensions.

Save

Integer

Saves a picture and optionally any overlay ink to a
file or blob in one of the following formats: bitmap, JPEG, GIF,
TIF, or PNG.

SaveInk

Integer

Saves ink to a file or blob in one of the following
formats: Ink Serialized Format (ISF), GIF, Base-64 encoded ISF,
or Base-64 encoded GIF.

SetFocus

Integer

Sets focus for a specified object or
control.

SetPosition

Integer

Sets the position of the InkEdit control in the
front-to-back order within a window.

SetRedraw

Integer

Controls the automatic redraw of an object after
its properties have changed.

Show

Integer

Makes an object or control visible if it is hidden.
If the object is already visible, Show brings it to the
top.

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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