Check Box (PRIM_CKBX)

Check Box is typically used to present a Boolean choice

Ancestors - Control (PRIM_CTRL) Object (PRIM_OBJT)

## Details

```Check box is typically used to present a binary choice e.g. Yes or No, On or Off etc.

Positive answers are usually checked while the negative is unchecked.

Checkbox also has a third indeterminate state used to represent more than one answer where the results are conflicting.
```

## Example

```This example show 3 checkboxes. The top two can be checked/unchecked. The bottom checkbox shows a combined state.
```
```Begin_Com Role(*EXTENDS #PRIM_WEB) Height(440) Width(688)

Define_Com Class(#PRIM_CKBX) Name(#CheckBox1)  Caption('On or Off') Displayposition(1) Left(271) Marginleft(2) Parent(#COM_OWNER) Tabposition(1) Top(52) Height(43) Width(146) Caption('On or Off')
Define_Com Class(#PRIM_CKBX) Name(#CheckBox2) Caption('On or Off') Displayposition(2) Left(271) Marginleft(2) Parent(#COM_OWNER) Tabposition(2) Top(95) Height(43) Width(146) Ellipses(End)
Define_Com Class(#PRIM_CKBX) Name(#CheckBox3) Caption('Both On or Off?') Displayposition(3) Left(271) Marginleft(2) Parent(#COM_OWNER) Tabposition(3) Top(138) Height(43) Width(146) Readonly(True)

Evtroutine Handling(#CheckBox1.Click #CheckBox2.Click)

If ((#CheckBox1.ButtonState = Checked) And (#CheckBox2.ButtonState = Checked))

#CheckBox3.ButtonState := Checked

Else

If ((#CheckBox1.ButtonState = Unchecked) And (#CheckBox2.ButtonState = Unchecked))

#CheckBox3.buttonState := Unchecked

Else

#CheckBox3.buttonState := Grayed

Endif

Endif

Endroutine

End_Com
```

## Properties

NameDescription
AlignmentPosition of the caption and box within the control
ButtonStateButtonState indicates whether a check box is checked
CanFocusCanFocus returns a value indicating whether the control can receive keyboard focus Inherited from Control (PRIM_CTRL)
CaptionText to be displayed within the control
ComponentClassNameComponentClassName is the name of the component's class. Inherited from Object (PRIM_OBJT)
ComponentMembersComponentMembers provides access to all the member components of this component Inherited from Object (PRIM_OBJT)
ComponentPatternNameComponentPatternName is used to qualify the class of the component. Inherited from Object (PRIM_OBJT)
ComponentTagGeneric space allowing a value to be stored for the instance Inherited from Object (PRIM_OBJT)
ComponentTypeNameComponentTypeName is the fully qualified name of the component's class. Inherited from Object (PRIM_OBJT)
CursorCursor sets the cursor image Inherited from Control (PRIM_CTRL)
DisplayPositionDisplayPosition determines the order in which components are shown Inherited from Control (PRIM_CTRL)
DragStyleDragStyle determines how a component can be dragged Inherited from Control (PRIM_CTRL)
EllipsesShow ellipses for truncated text
EnabledEnable activates/deactivates the component Inherited from Control (PRIM_CTRL)
FixedPositionFix the control position so that it does not move if the parent is scrolled Inherited from Control (PRIM_CTRL)
FocusFocus tells whether the component has focus Inherited from Control (PRIM_CTRL)
FocusedStyleReference to a style to be applied when the control is focus Inherited from Control (PRIM_CTRL)
FocusedStylesCollection of styles to be applied when the control is focus Inherited from Control (PRIM_CTRL)
HandleReturns the Windows handle in desktop applications Inherited from Control (PRIM_CTRL)
HeightThe height of the control in pixels Inherited from Control (PRIM_CTRL)
HintCaption displayed when the mouse hovers over the control Inherited from Control (PRIM_CTRL)
HintPopupHintPopup allows a PopupPanel instance to be used instead of the default hint text box Inherited from Control (PRIM_CTRL)
HintShowEnabled or disable the appearance of hints Inherited from Control (PRIM_CTRL)
HintShowOfParentDelegate hints appearance to the parent control Inherited from Control (PRIM_CTRL)
HintTitleHintTitle defines the text shown at the top of the hint window in emphasized text Inherited from Control (PRIM_CTRL)
ImageHeightSet the height and width of the image in pixels
ImagePositionImagePosition sets the position of the image relative to caption
IsAnimatingIsAnimating indicates that a control is currently being animated Inherited from Control (PRIM_CTRL)
IsRealizedTrue if the control is currently realized Inherited from Control (PRIM_CTRL)
LeftPosition of the control relative to the left boundary of its parent Inherited from Control (PRIM_CTRL)
MarginBottomBottom margin in pixels
MarginLeftLeft margin in pixels
MarginRightRight margin in pixels
MarginTopTop margin in pixels
MessageSetLANSA Internal Use
MessagesOfComponentLANSA Internal Use
MessagesOfFeatureLANSA Internal Use
ModifiedModified indicates that the contents of the component have changed Inherited from Control (PRIM_CTRL)
MouseOverMouseOver determines whether the mouse is directly over a control Inherited from Control (PRIM_CTRL)
MouseOverStyleMouseOverStyle defines the style to be applied to a control when the mouse is over it Inherited from Control (PRIM_CTRL)
MouseOverStylesMouseOverStyles is a collection of styles to be applied to a control when the mouse is over it Inherited from Control (PRIM_CTRL)
NameName identifies the component Inherited from Object (PRIM_OBJT)
OpacityOpacity denotes the appearance of a control in terms of its interaction with its background Inherited from Control (PRIM_CTRL)
OwnerOwner owns this component Inherited from Object (PRIM_OBJT)
ParentReference to the control in which this control is visually positioned Inherited from Control (PRIM_CTRL)
PopupPopup allows a PopupPanel instance to be used instead of the typical right click popup menu Inherited from Control (PRIM_CTRL)
PopupMenuReference to a PopupMenu to be shown on a right click Inherited from Control (PRIM_CTRL)
RotationRotation allows a control to rotate a number of degrees about a given origin Inherited from Control (PRIM_CTRL)
RotationOriginLeftRotationOriginLeft defines the left coordinate of an imaginary point around which a control will rotate Inherited from Control (PRIM_CTRL)
RotationOriginTopRotationOriginTop defines the top coordinate of an imaginary point around which a control will rotate Inherited from Control (PRIM_CTRL)
ScaleHeightScaleHeight is the percentage of the height to use in the visual appearance of a control Inherited from Control (PRIM_CTRL)
ScaleOriginLeftScaleOriginLeft defines the left coordinate of an imaginary point from which a control will scale Inherited from Control (PRIM_CTRL)
ScaleOriginTopScaleOriginTop defines the top coordinate of an imaginary point from which a control will scale Inherited from Control (PRIM_CTRL)
ScaleWidthScaleWidth is the percentage of the width to use in the visual appearance of a control Inherited from Control (PRIM_CTRL)
ScreenLeftScreenLeft sets the distance from the left of the screen Inherited from Control (PRIM_CTRL)
ScreenTopScreenTop sets the distance from the top of the screen Inherited from Control (PRIM_CTRL)
ScrollLeftLeft position of a horizontally scrolled child control relative to its parent control Inherited from Control (PRIM_CTRL)
ScrollTopTop position of a vertically scrolled child control relative to its parent control Inherited from Control (PRIM_CTRL)
SkewLeftSkewLeft defines the angle at which to skew the control horizontally Inherited from Control (PRIM_CTRL)
SkewOriginLeftSkewOriginLeft defines the left coordinate of an imaginary point from which a control will skew Inherited from Control (PRIM_CTRL)
SkewOriginTopSkewOriginTop defines the top coordinate of an imaginary point from which a control will skew Inherited from Control (PRIM_CTRL)
SkewTopSkewTop defines the angle at which to skew the control vertically Inherited from Control (PRIM_CTRL)
StyleStyle defines the style to be applied to a control Inherited from Control (PRIM_CTRL)
StylesCollection of styles to be applied to the control Inherited from Control (PRIM_CTRL)
TabPositionTabPosition sets the order of focus when the Tab key is used Inherited from Control (PRIM_CTRL)
TabStopSet to false to stop focus being given to the control via the Tab key Inherited from Control (PRIM_CTRL)
ThemeDrawStyleName of the Theme DrawStyle to be applied to the control Inherited from Control (PRIM_CTRL)
TopPosition of the control relative to the top boundary of its parent Inherited from Control (PRIM_CTRL)
TouchMoveDetermines how the control will respond to touch move processing Inherited from Control (PRIM_CTRL)
TouchRotateDetermines how the control will respond to touch rotation Inherited from Control (PRIM_CTRL)
TouchScaleDetermines how the control will respond to touch scaling Inherited from Control (PRIM_CTRL)
TouchSizeDetermines whether a control can be resized Inherited from Control (PRIM_CTRL)
VisibleShow or hide the control Inherited from Control (PRIM_CTRL)
VisualStyleVisualStyle sets the appearance Inherited from Control (PRIM_CTRL)
VisualStyleOfParentAdopt the Visual style from the parent control Inherited from Control (PRIM_CTRL)
WidthWidth of the component in pixels Inherited from Control (PRIM_CTRL)

## Events

NameDescription
AnimationEndedFired when an animation is ended Inherited from Control (PRIM_CTRL)
Cancelled
ClickFired when the mouse is clicked on the control
Origin, Handled
CreateInstanceCreateInstance is signalled when an instance of a component is created Inherited from Control (PRIM_CTRL)
DestroyInstanceDestroyInstance is signalled when an instance of a component is about to be destroyed Inherited from Control (PRIM_CTRL)
DragDropFired on mouse up to signify the end of a drag process Inherited from Control (PRIM_CTRL)
PosX, PosY, Source, Payload, AggregatedSource, Origin, Handled, DragResult
DragOverFired during the drag and drop process when the cursor moves over the control Inherited from Control (PRIM_CTRL)
PosX, PosY, Source, Payload, DragState, AcceptDrop, DragCursor, ShowDropHilight, AggregatedSource, Origin, Handled
EndDragFired when the drag and drop process has completed Inherited from Control (PRIM_CTRL)
Source, Payload, DragResult, AggregatedSource, Origin, Handled
GotFocusFired when the control receives the focus
InitializeFired after a component has been realized for the first time Inherited from Control (PRIM_CTRL)
LostFocusLostFocus happens when a component is no longer active
MouseEnterThe mouse has entered the bounds of the control Inherited from Control (PRIM_CTRL)
MouseHoverThe mouse has hovered over the control Inherited from Control (PRIM_CTRL)
Origin, Handled
MouseLeaveThe mouse has left the bounds of the control Inherited from Control (PRIM_CTRL)
StartDragFired when the user starts a drag and drop process Inherited from Control (PRIM_CTRL)
Source, Payload, Continue, DragList, AggregatedSource, Origin, Handled
TouchChangeFired repeatedly between the TouchStart and TouchEnd boundaries to provide details of the touch events Inherited from Control (PRIM_CTRL)
MoveLeft, MoveTop, ScaleWidth, ScaleHeight, Rotation, Continue
TouchEndFired when the user stops touching the screen Inherited from Control (PRIM_CTRL)
TouchStartFired when the user first makes physical contact with the screen Inherited from Control (PRIM_CTRL)
Origin, TouchMove, TouchRotate, TouchScale, TouchSize

## Methods

NameDescription
FadeInAnimate from invisible to visible Inherited from Control (PRIM_CTRL)
Duration, Delay
FadeOutAnimate from visible to invisible Inherited from Control (PRIM_CTRL)
Duration, Delay, Visible
MoveFromMove a control from the specified position to the current position Inherited from Control (PRIM_CTRL)
Left, Top, Duration, Delay
MoveToAnimate a move from the specified number of pixels Inherited from Control (PRIM_CTRL)
Left, Top, Duration, Delay
RealizeCreates the visual portion of dynamically created controls Inherited from Control (PRIM_CTRL)
ScaleAnimate a change of scale Inherited from Control (PRIM_CTRL)
ScaleWidth, ScaleHeight, Duration, Delay
SetFocusSets the control to be the focus control Inherited from Control (PRIM_CTRL)
ShowMessagesLANSA Internal Use Inherited from Control (PRIM_CTRL)
UnrealizeDestroys the visual portion of dynamically created controls Inherited from Control (PRIM_CTRL)
UpdateDisplayUpdateDisplay updates the display immediately Inherited from Control (PRIM_CTRL)