XmToggleButtonGadget(3X)

XmToggleButtonGadget - The ToggleButtonGadget widget class

As shipped in IRIX 6.5.22. Added in IRIX 6.5.5.

     NAME
          XmToggleButtonGadget - The ToggleButtonGadget widget class

     SYNOPSIS
          #include <Xm/ToggleBG.h>

     VERSION
          This page documents Motif 2.1.

     DESCRIPTION
          ToggleButtonGadget sets nontransitory state data within an
          application. Usually this gadget consists of an indicator
          (square, diamond, or round) with either text or a pixmap on
          one side of it.  However, it can also consist of just text
          or a pixmap without the indicator.

          The toggle graphics display a 1-of-many, N-of-many, or N-
          of-many-round selection state.  When a toggle indicator is
          displayed, a square indicator shows an N-of-manyselection
          state, a diamond-shaped indicator shows a 1-of-many
          selection state, and a circle-shaped indicator shows a 1-
          of-many-round selection state.

          ToggleButtonGadget implies a set or unset state.  In the
          case of a label and an indicator, an empty indicator
          (square, diamond, or round) indicates that
          ToggleButtonGadget is unset, and a filled indicator shows
          that it is set. The indicator may be filled with a check
          mark or the select color. In the case of a pixmap toggle,
          different pixmaps are used to display the set/unset states.
          ToggleButtonGadget can also indicate an indeterminate state.
          In the case of a label and an indicator, an indeterminate
          state is indicated by a stippled flat box.  In the case of a
          pixmap toggle, a different pixmap is used to display the
          indeterminate state.

          The default behavior associated with a ToggleButtonGadget in
          a menu depends on the type of menu system in which it
          resides.  By default, <Btn1> controls the behavior of the
          ToggleButtonGadget.  In addition, <Btn3> controls the
          behavior of the ToggleButtonGadget if it resides in a
          PopupMenu system.  The actual mouse button used is
          determined by its RowColumn parent.

          Label's resource XmNmarginLeft may be increased to
          accommodate the toggle indicator when it is created.

          ToggleButtonGadget uses the XmQTmenuSystem and
          XmQTspecifyRenderTable traits.

        Classes
          ToggleButtonGadget inherits behavior, resources, and traits
          from Object, RectObj, XmGadgetand XmLabelGadget.

          The class pointer is xmToggleButtonGadgetClass.

          The class name is XmToggleButtonGadget.

        New Resources
          The following table defines a set of widget resources used
          by the programmer to specify data. The programmer can also
          set the resource values for the inherited classes to set
          attributes for this widget. To reference a resource by name
          or by class in a .Xdefaults file, remove the XmN or XmC
          prefix and use the remaining letters. To specify one of the
          defined values for a resource in a .Xdefaults file, remove
          the Xm prefix and use the remaining letters (in either
          lowercase or uppercase, but include any underscores between
          words).  The codes in the access column indicate if the
          given resource can be set at creation time (C), set by using
          XtSetValues (S), retrieved by using XtGetValues (G), or is
          not applicable (N/A).

                                             XmToggleButtonGadget Resource Set
          Name                         Class                        Type             Default                Access
          XmNarmCallback               XmCArmCallback               XtCallbackList   NULL                   C
          XmNdetailShadowThickness     XmCDetailShadowThickness     Dimension        2                      CSG
          XmNdisarmCallback            XmCDisarmCallback            XtCallbackList   NULL                   C
          XmNfillOnSelect              XmCFillOnSelect              Boolean          dynamic                CSG
          XmNindeterminatePixmap       XmCIndeterminatePixmap       Pixmap           XmUNSPECIFIED_PIXMAP   CSG
          XmNindicatorOn               XmCIndicatorOn               unsigned char    XmINDICATOR_FILL       CSG
          XmNindicatorSize             XmCIndicatorSize             Dimension        dynamic                CSG
          XmNindicatorType             XmCIndicatorType             unsigned char    dynamic                CSG
          XmNselectColor               XmCSelectColor               Pixel            dynamic                CSG
          XmNselectInsensitivePixmap   XmCSelectInsensitivePixmap   Pixmap           XmUNSPECIFIED_PIXMAP   CSG
          XmNselectPixmap              XmCSelectPixmap              Pixmap           XmUNSPECIFIED_PIXMAP   CSG
          XmNset                       XmCSet                       unsigned char    XmUNSET                CSG
          XmNspacing                   XmCSpacing                   Dimension        4                      CSG
          XmNtoggleMode                XmCToggleMode                unsigned char    XmTOGGLE_BOOLEAN       CSG
          XmNunselectColor             XmCUnselectColor             Pixel            dynamic                CSG
          XmNvalueChangedCallback      XmCValueChangedCallback      XtCallbackList   NULL                   C
          XmNvisibleWhenOff            XmCVisibleWhenOff            Boolean          dynamic                CSG

          XmNarmCallback
                    Specifies a list of callbacks that is called when
                    the ToggleButtonGadget is armed.  To arm this
                    gadget, press the active mouse button while the
                    pointer is inside the ToggleButtonGadget.  For
                    this callback, the reason is XmCR_ARM.

          XmNdetailShadowThickness
                    Specifies the thickness of the indicator shadow.
                    The default thickness is 2 pixels.

          XmNdisarmCallback
                    Specifies a list of callbacks called when
                    ToggleButtonGadget is disarmed.  To disarm this
                    gadget, press and release the active mouse button
                    while the pointer is inside the
                    ToggleButtonGadget.  The gadget is also disarmed
                    when the user moves out of the gadget and releases
                    the mouse button when the pointer is outside the
                    gadget.  For this callback, the reason is
                    XmCR_DISARM.

          XmNfillOnSelect
                    Fills the indicator with the color specified in
                    XmNselectColor and switches the top and bottom
                    shadow colors when set to True. If unset, fills
                    the indicator with the unselect color. If
                    indeterminate, fills the indicator with half
                    select color and half unselect color.  Otherwise,
                    it switches only the top and bottom shadow colors.
                    The default is set True only if a box type of
                    indicator (such as a check box) is specified, or
                    if the XmNindicatorType is a 1-of type and a
                    toggle indicator is drawn.  If XmNfillOnSelect is
                    True, XmNset is XmSET, and XmNindicatorOn is
                    XmINDICATOR_NONE the ToggleButtonGadget's
                    background is set to XmNselectColor. For the other
                    XmNindicatorOn values, only the indicator is
                    filled with XmNselectColor.

          XmNindeterminateInsensitivePixmap
                    Specifies the pixmap to be displayed as the button
                    face when the Label XmNlableType resource is
                    XmPIXMAP, the ToggleButtonGadget XmNset resource
                    is XmINDETERMINATE, and the Core XmNsensitive
                    resource is False.

          XmNindeterminatePixmap
                    Specifies the pixmap to be displayed as the button
                    face when the Label XmNlableType resource is
                    XmPIXMAP, the ToggleButtonGadget XmNset resource
                    is XmINDETERMINATE, and the Core XmNsensitive
                    resource is True.

          XmNindicatorOn
                    Specifies that if a toggle indicator is to be
                    drawn, it will be drawn to one side of the toggle
                    text or pixmap, depending on the
                    XmNlayoutDirection resource of the widget. The
                    default value is XmINDICATOR_FILL.  Toggles accept
                    the following values:

                    XmINDICATOR_NONE
                              No space is allocated for the indicator,
                              and it is not displayed. Any shadows
                              around the entire widget are switched
                              when the toggle is selected or
                              unselected.

                    XmINDICATOR_BOX
                              The toggle indicator is in the shape of
                              a shadowed box.

                    XmINDICATOR_FILL
                              If the value of the XmDisplay
                              XmNenableToggleVisualresource is True,
                              the visuals are those of
                              XmINDICATOR_CHECK_BOX; if False, the
                              indicator visuals are those of
                              XmINDICATOR_BOX.

                    XmINDICATOR_CHECK
                              The toggle indicator is in the shape of
                              a checkmark in the foreground color.

                    XmINDICATOR_CHECK_BOX
                              The toggle indicator is in the shape of
                              a checkmark enclosed in a box.  This is
                              the default if the XmDisplay
                              XmNenableToggleVisualresource is set.

                    XmINDICATOR_CROSS_BOX
                              The toggle indicator is in the shape of
                              a cross enclosed in a box.

                    XmINDICATOR_CROSS
                              The toggle indicator is in the shape of
                              a cross.

                    All ToggleButton checks and crosses should be
                    drawn in the foreground color.

                    If this resource is not XmINDICATOR_NONE, it will
                    control the appearance of the toggle visual. If
                    XmNset is XmINDETERMINATE and XmNindicatorOn is
                    not XmINDICATOR_NONE, this resource shows a
                    stippled flat box.  If XmNset is XmINDETERMINATE,
                    XmNindicatorOn is XmINDICATOR_NONE, and
                    XmNtoggleMode is XmTOGGLE_INDETERMINATE, the label
                    and the ToggleButton are stippled with a
                    combination of the XmNselectColor and the
                    XmNunselectColor color, and the border is flat.

          XmNindicatorSize
                    Sets the size of the indicator.  If no value is
                    specified, the size of the indicator is based on
                    the size of the label string or pixmap.  If the
                    label string or pixmap changes, the size of the
                    indicator is recomputed based on the size of the
                    label string or pixmap.  Once a value has been
                    specified for XmNindicatorSize, the indicator has
                    that size, regardless of the size of the label
                    string or pixmap, until a new value is specified.
                    The size of indicators inside menus may differ
                    from those outside of menus.  Note that a change
                    in this resource may also cause a change in the
                    values of the inherited resources XmNmarginTop,
                    XmNmarginBottom, and XmNmarginLeft.

          XmNindicatorType
                    Specifies if the indicator is a 1-of or N-of
                    indicator. For the 1-of indicator, the value can
                    be XmONE_OF_MANY, XmONE_OF_MANY_ROUND, or
                    XmONE_OF_MANY_DIAMOND.  For the N-of indicator,
                    the value is XmN_OF_MANY.  This value specifies
                    only the visuals and does not enforce the
                    behavior. When the ToggleButton is in a radio box,
                    the default is XmONE_OF_MANY; otherwise, the
                    default is XmN_OF_MANY. Legal values are:

                    XmONE_OF_MANY
                              When the Display
                              XmNenableToggleVisualresource is set,
                              indicators are drawn with the same
                              appearance as XmONE_OF_MANY_ROUND;
                              otherwise, they appear the same as
                              XmONE_OF_MANY_DIAMOND.

                    XmN_OF_MANY
                              The indicators are drawn as specified by
                              the XmNindicatorOnresource.

                    XmONE_OF_MANY_ROUND
                              A shadowed circle.

                    XmONE_OF_MANY_DIAMOND
                              A shadowed diamond.

          XmNselectColor
                    Allows the application to specify what color fills
                    the center of the square, diamond-shaped, or round
                    indicator when it is set.  If this color is the
                    same as either the top or the bottom shadow color
                    of the indicator, a one-pixel-wide margin is left
                    between the shadows and the fill; otherwise, it is
                    filled completely.  The results of this resource
                    depend on the value of the Display resource
                    XmNenableToggleColor. A value of True causes the
                    fill color to use the XmHIGHLIGHT_COLOR color by
                    default. A value of False causes the fill color to
                    use the background color.  This resource's default
                    for a color display is a color between the
                    background and the bottom shadow color. For a
                    monochrome display, the default is set to the
                    foreground color. To set the background of the
                    button to XmNselectColor when XmNindicatorOn is
                    XmINDICATOR_NONE, the value of XmNfillOnSelect
                    must be explicitly set to True.

                    This resource can take the following values:

                    XmDEFAULT_SELECT_COLOR
                              Is the same as the current dynamic
                              default, which is a color between the
                              background and the bottom shadow color.

                    XmREVERSED_GROUND_COLORS
                              Forces the select color to the
                              foreground color and causes the default
                              color of any text rendered over the
                              select color to be in the background
                              color.

                    XmHIGHLIGHT_COLOR
                              Forces the fill color to use the
                              highlight color.

          XmNselectInsensitivePixmap
                    Specifies a pixmap used as the button face when
                    the ToggleButtonGadget is selected, the button is
                    insensitive, and the LabelGadget resource
                    XmNlabelTypeis XmPIXMAP. If the ToggleButtonGadget
                    is unselected and the button is insensitive, the
                    pixmap in XmNlabelInsensitivePixmap is used as the
                    button face.  If no value is specified for
                    XmNlabelInsensitivePixmap, that resource is set to
                    the value specified for
                    XmNselectInsensitivePixmap.

          XmNselectPixmap
                    Specifies the pixmap to be used as the button face
                    if XmNlabelType is XmPIXMAP and the
                    ToggleButtonGadget is selected.  When the
                    ToggleButtonGadget is unselected, the pixmap
                    specified in LabelGadget's XmNlabelPixmap is used.
                    If no value is specified for XmNlabelPixmap, that
                    resource is set to the value specified for
                    XmNselectPixmap.

          XmNset    Represents the state of the ToggleButton. A value
                    of XmUNSET indicates that the ToggleButton is not
                    set. A value of XmSET indicates that the
                    ToggleButton is set. A value of XmINDETERMINATE
                    indicates that the ToggleButton is in an
                    indeterminate state (neither set nor unset).  The
                    ToggleButton states cycle through in the order of
                    XmSET, XmINDETERMINATE (if XmNtoggleMode is set to
                    XmTOGGLE_INDETERMINATE), and XmUNSET, and then
                    back around to XmSET. If XmNtoggleMode is set to
                    XmTOGGLE_BOOLEAN, then the ToggleButton states
                    cycle through in the order of XmSET, then XmUNSET,
                    and then back around to XmSET.  Setting this
                    resource sets the state of the ToggleButton.

          XmNspacing
                    Specifies the amount of spacing between the toggle
                    indicator and the toggle label (text or pixmap).

          XmNtoggleMode
                    Specifies the mode of the ToggleButtonGadget as
                    either XmTOGGLE_BOOLEAN or XmTOGGLE_INDETERMINATE.
                    The XmTOGGLE_INDETERMINATE value allows the XmNset
                    resource to be able to accept the values
                    XmINDETERMINATE, XmSET, and XmUNSET. The
                    XmNtoggleMode resource is forced to
                    XmTOGGLE_BOOLEAN if the toggle is in an
                    XmRowColumn widget whose radio behavior is
                    XmONE_OF_MANY. In XmTOGGLE_BOOLEAN mode, the
                    XmNset resource can only accept XmSET and XmUNSET.

          XmNunselectColor
                    Allows the application to specify what color fills
                    the center of the square, diamond-shaped, or round
                    indicator when it is not set.  If this color is
                    the same as either the top or the bottom shadow
                    color of the indicator, a one-pixel-wide margin is
                    left between the shadows and the fill; otherwise,
                    it is filled completely.  This resource's default
                    for a color display is XmNbackground.  For a
                    monochrome display, the default is set to the
                    background color. To set the background of the
                    button to XmNunselectColor when XmNindicatorOn is
                    XmINDICATOR_NONE, the value of XmNfillOnSelect
                    must be explicitly set to True. This resource acts
                    like the XmNselectColor resource, but for the case
                    when XmNset is XmUNSET.

          XmNvalueChangedCallback
                    Specifies a list of callbacks called when the
                    ToggleButtonGadget value is changed. To change the
                    value, press and release the active mouse button
                    while the pointer is inside the
                    ToggleButtonGadget. This action also causes the
                    gadget to be disarmed.  For this callback, the
                    reason is XmCR_VALUE_CHANGED.

          XmNvisibleWhenOff
                    Indicates that the toggle indicator is visible in
                    the unselected state when the Boolean value is
                    True.  When the ToggleButtonGadget is in a menu,
                    the default value is False.  When the
                    ToggleButtonGadget is in a RadioBox, the default
                    value is True.

        Inherited Resources
          ToggleButtonGadget inherits behavior and resources from the
          superclasses described in the following tables.  For a
          complete description of each resource, refer to the
          reference page for that superclass.

                                                 XmLabelGadget Resource Set
          Name                        Class                       Type                Default                Access
          XmNaccelerator              XmCAccelerator              String              NULL                   CSG
          XmNacceleratorText          XmCAcceleratorText          XmString            NULL                   CSG
          XmNalignment                XmCAlignment                unsigned char       dynamic                CSG
          XmNfontList                 XmCFontList                 XmFontList          dynamic                CSG
          XmNlabelInsensitivePixmap   XmCLabelInsensitivePixmap   Pixmap              XmUNSPECIFIED_PIXMAP   CSG
          XmNlabelPixmap              XmCLabelPixmap              Pixmap              XmUNSPECIFIED_PIXMAP   CSG
          XmNlabelString              XmCXmString                 XmString            dynamic                CSG
          XmNlabelType                XmCLabelType                unsigned char       XmSTRING               CSG
          XmNmarginBottom             XmCMarginBottom             Dimension           dynamic                CSG
          XmNmarginHeight             XmCMarginHeight             Dimension           2                      CSG
          XmNmarginLeft               XmCMarginLeft               Dimension           dynamic                CSG
          XmNmarginRight              XmCMarginRight              Dimension           0                      CSG
          XmNmarginTop                XmCMarginTop                Dimension           dynamic                CSG
          XmNmarginWidth              XmCMarginWidth              Dimension           2                      CSG
          XmNmnemonic                 XmCMnemonic                 KeySym              NULL                   CSG
          XmNmnemonicCharSet          XmCMnemonicCharSet          String              dynamic                CSG
          XmNrecomputeSize            XmCRecomputeSize            Boolean             True                   CSG
          XmNrenderTable              XmCRenderTable              XmRenderTable       dynamic                CSG
          XmNstringDirection          XmCStringDirection          XmStringDirection   dynamic                CSG

                                               XmGadget Resource Set
          Name                    Class                   Type               Default                Access
          XmNbackground           XmCBackground           Pixel              dynamic                CSG
          XmNbackgroundPixmap     XmCPixmap               Pixmap             XmUNSPECIFIED_PIXMAP   CSG
          XmNbottomShadowColor    XmCBottomShadowColor    Pixel              dynamic                CSG
          XmNbottomShadowPixmap   XmCBottomShadowPixmap   Pixmap             dynamic                CSG
          XmNhelpCallback         XmCCallback             XtCallbackList     NULL                   C
          XmNforeground           XmCForeground           Pixel              dynamic                CSG
          XmNhighlightColor       XmCHighlightColor       Pixel              dynamic                CSG

          XmNhighlightOnEnter     XmCHighlightOnEnter     Boolean            False                  CSG
          XmNhighlightPixmap      XmCHighlightPixmap      Pixmap             dynamic                CSG
          XmNhighlightThickness   XmCHighlightThickness   Dimension          2                      CSG
          XmNlayoutDirection      XmNCLayoutDirection     XmDirection        dynamic                CG
          XmNnavigationType       XmCNavigationType       XmNavigationType   XmNONE                 CSG
          XmNshadowThickness      XmCShadowThickness      Dimension          dynamic                CSG
          XmNtopShadowColor       XmCTopShadowColor       Pixel              dynamic                CSG
          XmNtopShadowPixmap      XmCTopShadowPixmap      Pixmap             dynamic                CSG
          XmNtraversalOn          XmCTraversalOn          Boolean            True                   CSG
          XmNunitType             XmCUnitType             unsigned char      dynamic                CSG
          XmNuserData             XmCUserData             XtPointer          NULL                   CSG

                                  RectObj Resource Set
          Name                   Class            Type        Default   Access
          XmNancestorSensitive   XmCSensitive     Boolean     dynamic   G
          XmNborderWidth         XmCBorderWidth   Dimension   0         N/A
          XmNheight              XmCHeight        Dimension   dynamic   CSG
          XmNsensitive           XmCSensitive     Boolean     True      CSG
          XmNwidth               XmCWidth         Dimension   dynamic   CSG
          XmNx                   XmCPosition      Position    0         CSG
          XmNy                   XmCPosition      Position    0         CSG

                                  Object Resource Set
          Name                 Class         Type             Default   Access
          XmNdestroyCallback   XmCCallback   XtCallbackList   NULL      C

        Callback Information
          A pointer to the following structure is passed to each
          callback:

          typedef struct
          {
                  int reason;
                  XEvent * event;
                  int set;
          } XmToggleButtonCallbackStruct;

          reason    Indicates why the callback was invoked

          event     Points to the XEvent that triggered the callback

          set       Reflects the ToggleButtonGadget's state, either
                    XmSET (selected), XmUNSET (unselected), or
                    XmINDETERMINATE (neither).  Note that the reported
                    state is the state that the ToggleButtonGadget is
                    in after the event has been processed. For
                    example, suppose that a user clicks on a
                    ToggleButtonGadget to change it from the
                    unselected state to the selected state. In this
                    case, ToggleButtonGadget changes the value of set
                    from XmUNSETto XmSET prior to calling the
                    callback.
        Behavior
          XmToggleButtonGadget includes behavior from XmGadget.
          XmToggleButtonGadget includes menu traversal behavior from
          XmLabelGadget.  Additional XmToggleButtonGadget behavior is
          described in the following list:

          <Btn2Down>:
                    Drags the contents of a ToggleButtonGadget label,
                    identified when <Btn2> is pressed.  This action is
                    undefined for ToggleButtonGadgets used in a menu
                    system.

          <Btn1Down>:
                    In a menu, this action unposts any menus posted by
                    the ToggleButtonGadget's parent menu, disables
                    keyboard traversal for the menu, and enables mouse
                    traversal for the menu.  It draws the shadow in
                    the armed state and, unless the button is already
                    armed, calls the XmNarmCallbackcallbacks.

                    Outside a menu, if the button was previously
                    unset, this action does the following:  if
                    XmNindicatorOn is True, it draws the indicator
                    shadow so that the indicator looks pressed; if
                    XmNfillOnSelect is True, it fills the indicator
                    with the color specified by XmNselectColor.  If
                    XmNindicatorOn is False, it draws the button
                    shadow so that the button looks pressed.  If
                    XmNlabelType is XmPIXMAP, the XmNselectPixmap is
                    used as the button face.  This resource calls the
                    XmNarmCallback callbacks.

                    Outside a menu, if the button was previously set,
                    this action does the following:  if both
                    XmNindicatorOn and XmNvisibleWhenOff are True, it
                    draws the indicator shadow so that the indicator
                    looks raised; if XmNfillOnSelect is True, it fills
                    the indicator with the background color.  If
                    XmNindicatorOn is False, it draws the button
                    shadow so that the button looks raised.  If
                    XmNlabelType is XmPIXMAP, the XmNlabelPixmap is
                    used as the button face.  This resource calls the
                    XmNarmCallback callbacks.

          <Btn1Up>: In a menu, this action unposts all menus in the
                    menu hierarchy.  If the ToggleButtonGadget was
                    previously set, this action unsets it; if the
                    ToggleButtonGadget was previously unset, this
                    action sets it.  It calls the
                    XmNvalueChangedCallback callbacks and then the
                    XmNdisarmCallback callbacks.

                    If the button is outside a menu and the pointer is
                    within the button, this action does the following:
                    if the button was previously unset, sets it; if
                    the button was previously set, unsets it.  This
                    action calls the XmNvalueChangedCallback
                    callbacks.

                    If the button is outside a menu, this action calls
                    the XmNdisarmCallbackcallbacks.

          <Key><osfHelp>:
                    In a Pulldown or Popup MenuPane, unposts all menus
                    in the menu hierarchy and, when the shell's
                    keyboard focus policy is XmEXPLICIT, restores
                    keyboard focus to the widget that had the focus
                    before the menu system was entered.  Calls the
                    callbacks for XmNhelpCallback if any exist.  If
                    there are no help callbacks for this widget, this
                    action calls the help callbacks for the nearest
                    ancestor that has them.

          <Key><osfActivate>:
                    In a menu, this action unposts all menus in the
                    menu hierarchy.  Unless the button is already
                    armed, this action calls the
                    XmNarmCallbackcallbacks; and calls the
                    XmNvalueChangedCallback and XmNdisarmCallback
                    callbacks. Outside a menu, if the parent is a
                    manager, this action passes the event to the
                    parent.

          <Key><osfSelect>:
                    If the ToggleButtonGadget was previously set, this
                    action unsets it; if the ToggleButtonGadget was
                    previously unset, this action sets it.

                    In a menu, this action unposts all menus in the
                    menu hierarchy.  Unless the button is already
                    armed, this action calls the XmNarmCallback, the
                    XmNvalueChangedCallback, and XmNdisarmCallback
                    callbacks.

                    Outside a menu, if the button was previously
                    unset, this action does the following:  If
                    XmNindicatorOn is True, it draws the indicator
                    shadow so that the indicator looks pressed; if
                    XmNfillOnSelect is True, it fills the indicator
                    with the color specified by XmNselectColor.  If
                    XmNindicatorOn is False, it draws the button
                    shadow so that the button looks pressed.  If
                    XmNlabelTypeis XmPIXMAP, the XmNselectPixmap is
                    used as the button face.  This action calls the
                    XmNarmCallback, XmNvalueChangedCallback,
                    XmNdisarmCallback callbacks.

                    Outside a menu, if the button was previously set,
                    this action does the following:  If both
                    XmNindicatorOn and XmNvisibleWhenOff are True, it
                    draws the indicator shadow so that the indicator
                    looks raised; if XmNfillOnSelect is True, it fills
                    the indicator with the background color.  If
                    XmNindicatorOn is False, it draws the button
                    shadow so that the button looks raised.  If
                    XmNlabelType is XmPIXMAP, the XmNlabelPixmap is
                    used as the button face.  Calls the
                    XmNarmCallback, XmNvalueChangedCallback, and
                    XmNdisarmCallback callbacks.

          <Key><osfCancel>:
                    In a toplevel Pulldown MenuPane from a MenuBar,
                    unposts the menu, disarms the MenuBar
                    CascadeButton and the MenuBar, and, when the
                    shell's keyboard focus policy is XmEXPLICIT,
                    restores keyboard focus to the widget that had the
                    focus before the MenuBar was entered.  In other
                    Pulldown MenuPanes, this action unposts the menu.
                    Outside a menu, if the parent is a manager, this
                    action passes the event to the parent.

                    In a Popup MenuPane, this action unposts the menu
                    and restores keyboard focus to the widget from
                    which the menu was posted.

          <Enter>:  In a menu, if keyboard traversal is enabled, this
                    action does nothing.  Otherwise, it draws the
                    shadow in the armed state and calls the
                    XmNarmCallback callbacks.

                    If the ToggleButtonGadget is not in a menu and the
                    cursor leaves and then reenters the
                    ToggleButtonGadget while the button is pressed,
                    this action restores the button's armed
                    appearance.

          <Leave>:  In a menu, if keyboard traversal is enabled, this
                    action does nothing.  Otherwise, it draws the
                    shadow in the unarmed state and calls the
                    XmNdisarmCallback callbacks.

                    If the ToggleButtonGadget is not in a menu and the
                    cursor leaves the ToggleButtonGadget while the
                    button is pressed, this action restores the
                    button's unarmed appearance.

        Virtual Bindings
          The bindings for virtual keys are vendor specific.  For
          information about bindings for virtual buttons and keys, see
          VirtualBindings(3).

     RELATED
          Object(3), RectObj(3), XmCreateRadioBox(3),
          XmCreateToggleButtonGadget(3), XmGadget(3),
          XmLabelGadget(3), XmRowColumn(3),
          XmToggleButtonGadgetGetState(3), and
          XmToggleButtonGadgetSetState(3).