Tribblix: manual page: XmLabel.3

XmLabel(library call) XmLabel(library call)

NAME

XmLabel -- The Label widget class

SYNOPSIS

#include <Xm/Label.h>

DESCRIPTION

Label is an instantiable widget and is also used as a superclass for
other button widgets, such as PushButton and ToggleButton. The Label
widget does not accept any button or key input, and the help callback
is the only callback defined. Label also receives enter and leave
events.

Label can contain either text or a pixmap. Label text is a compound
string. Refer to the Motif Programmer's Guide for more information on
compound strings. The text can be multilingual, multiline, and/or
multifont. When a Label is insensitive, its text is stippled, or the
user-supplied insensitive pixmap is displayed.

Label supports both accelerators and mnemonics primarily for use in
Label subclass widgets that are contained in menus. Mnemonics are
available in a menu system when the button is visible. Accelerators
in a menu system are accessible even when the button is not visible.
The Label widget displays the mnemonic by underlining the first
matching character in the text string. The accelerator is displayed
as a text string adjacent to the label text or pixmap, depending on
the layout direction.

Label consists of many margin fields surrounding the text or pixmap.
These margin fields are resources that may be set by the user, but
Label subclasses and Manager parents also modify some of these
fields. They tend to modify the XmNmarginLeft, XmNmarginRight,
XmNmarginTop, and XmNmarginBottom resources and leave the
XmNmarginWidth and XmNmarginHeight resources as set by the
application.

Label takes into account XmNshadowThickness in determining its layout
but does not draw the shadow. That is, if XmNshadowThickness is
greater than 0 (zero), Label leaves space for the shadow, but the
shadow does not appear.

In a Label, XmNtraversalOn and XmNhighlightOnEnter are forced to
False inside Popup menu panes, Pulldown menu panes, and OptionMenus.
Otherwise, these resources default to False.

Label uses the XmQTmenuSystem and XmQTspecifyRenderTable traits, and
holds the XmQTaccessTextual, XmQTmenuSavvy, and XmQTtransfer traits.

Data Transfer Behavior

Label and it subclasses, except when used in a menu system, support
dragging of the label contents from the Label. However, the label
contents are draggable only if the XmNenableUnselectableDrag resource
of XmDisplay is set to True.

As a source of data, Label and its subclasses support the following
targets and associated conversions of data to these targets:

locale If the locale target matches the widget's locale, the
widget transfers XmNlabelString in the encoding of the
locale. This target is supported when XmNlabelType is
XmSTRING or XmPIXMAP_AND_STRING.

COMPOUND_TEXT
The widget transfers XmNlabelString as type COMPOUND_TEXT.
This target is supported when XmNlabelType is XmSTRING or
XmPIXMAP_AND_STRING.

UTF8_STRING
The widget transfers XmNlabelString as type UTF8_STRING.
This target is supported when XmNlabelType is XmSTRING or
XmPIXMAP_AND_STRING.

PIXMAP The widget transfers XmNlabelPixmap as type DRAWABLE. This
target is supported when XmNlabelType is XmPIXMAP or
XmPIXMAP_AND_STRING.

STRING The widget transfers XmNlabelString as type STRING. This
target is supported when XmNlabelType is XmSTRING or
XmPIXMAP_AND_STRING.

TEXT If XmNlabelString is fully convertible to the encoding of
the locale, the widget transfers XmNlabelString in the
encoding of the locale. Otherwise, the widget transfers
XmNlabelString as type COMPOUND_TEXT. This target is
supported only when XmNlabelType is XmSTRING or
XmPIXMAP_AND_STRING.

_MOTIF_CLIPBOARD_TARGETS
The widget transfers, as type ATOM, a list of the targets
it supports for the CLIPBOARD selection. When XmNlabelType
is XmSTRING or XmPIXMAP_AND_STRING, these include the
following targets:

+o _MOTIF_COMPOUND_STRING

+o COMPOUND_TEXT

+o UTF8_STRING

+o The encoding of the locale, if XmNlabelString is
fully convertible to the encoding of the locale

+o STRING, if XmNlabelString is fully convertible to
STRING

When XmNlabelType is XmPIXMAP or XmPIXMAP_AND_STRING, the
targets include PIXMAP.

_MOTIF_COMPOUND_STRING
The widget transfers XmNlabelString as a compound string in
Byte Stream format. This target is supported when
XmNlabelType is XmSTRING or XmPIXMAP_AND_STRING.

_MOTIF_EXPORT_TARGETS
The widget transfers, as type ATOM, a list of the targets
to be used as the value of the DragContext's
XmNexportTargets in a drag-and-drop transfer. When
XmNlabelType is XmSTRING or XmPIXMAP_AND_STRING, these
include _MOTIF_COMPOUND_STRING, COMPOUND_TEXT, UTF8_STRING,
the encoding of the locale, STRING, TEXT, BACKGROUND, and
FOREGROUND. When XmNlabelType is XmPIXMAP or
XmPIXMAP_AND_STRING, these include PIXMAP, BACKGROUND, and
FOREGROUND.

As a source of data, Label also supports the following standard Motif
targets:

BACKGROUND
The widget transfers XmNbackground as type PIXEL.

CLASS The widget finds the first shell in the widget hierarchy
that has a WM_CLASS property and transfers the contents as
text in the current locale.

CLIENT_WINDOW
The widget finds the first shell in the widget hierarchy
and transfers its window as type WINDOW.

COLORMAP The widget transfers XmNcolormap as type COLORMAP.

FOREGROUND
The widget transfers XmNforeground as type PIXEL.

NAME The widget finds the first shell in the widget hierarchy
that has a WM_NAME property and transfers the contents as
text in the current locale.

TARGETS The widget transfers, as type ATOM, a list of the targets
it supports. These include the standard targets in this
list. When XmNlabelType is XmSTRING or
XmPIXMAP_AND_STRING, these also include
_MOTIF_COMPOUND_STRING, COMPOUND_TEXT, UTF8_STRING, the
encoding of the locale, STRING, and TEXT. When
XmNlabelType is XmPIXMAP or XmPIXMAP_AND_STRING, these also
include PIXMAP.

TIMESTAMP The widget transfers the timestamp used to acquire the
selection as type INTEGER.

_MOTIF_RENDER_TABLE
The widget transfers XmNrenderTable if it exists, or else
the default text render table, as type STRING.

_MOTIF_ENCODING_REGISTRY
The widget transfers its encoding registry as type STRING.
The value is a list of NULL separated items in the form of
tag encoding pairs. This target symbolizes the transfer
target for the Motif Segment Encoding Registry. Widgets
and applications can use this Registry to register text
encoding formats for specified render table tags.
Applications access this Registry by calling
XmRegisterSegmentEncoding and XmMapSegmentEncoding.

Classes

Label inherits behavior, resources, and traits from Core and
XmPrimitive.

The class pointer is xmLabelWidgetClass.

The class name is XmLabel.

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).

+------------------------------------------------------------------------------------------------------------+
| XmLabel 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 | 0 | CSG |
+--------------------------+---------------------------+-------------------+------------------------+--------+
|XmNmarginHeight | XmCMarginHeight | Dimension | 2 | CSG |
+--------------------------+---------------------------+-------------------+------------------------+--------+
|XmNmarginLeft | XmCMarginLeft | Dimension | 0 | CSG |
+--------------------------+---------------------------+-------------------+------------------------+--------+
|XmNmarginRight | XmCMarginRight | Dimension | 0 | CSG |
+--------------------------+---------------------------+-------------------+------------------------+--------+
|XmNmarginTop | XmCMarginTop | Dimension | 0 | CSG |
+--------------------------+---------------------------+-------------------+------------------------+--------+
|XmNmarginWidth | XmCMarginWidth | Dimension | 2 | CSG |
+--------------------------+---------------------------+-------------------+------------------------+--------+
|XmNmnemonic | XmCMnemonic | KeySym | NULL | CSG |
+--------------------------+---------------------------+-------------------+------------------------+--------+
|XmNmnemonicCharSet | XmCMnemonicCharSet | String | XmFONTLIST_DEFAULT_TAG | CSG |
+--------------------------+---------------------------+-------------------+------------------------+--------+
|XmNpixmapPlacement | XmCPixmapPlacement | unsigned int | XmPIXMAP_LEFT | CSG |
+--------------------------+---------------------------+-------------------+------------------------+--------+
|XmNpixmapTextPadding | XmCSpace | Dimension | 2 | CSG |
+--------------------------+---------------------------+-------------------+------------------------+--------+
|XmNrecomputeSize | XmCRecomputeSize | Boolean | True | CSG |
+--------------------------+---------------------------+-------------------+------------------------+--------+
|XmNrenderTable | XmCRenderTable | XmRenderTable | dynamic | CSG |
+--------------------------+---------------------------+-------------------+------------------------+--------+
|XmNstringDirection | XmCStringDirection | XmStringDirection | dynamic | CSG |
+--------------------------+---------------------------+-------------------+------------------------+--------+
+--------------------------+---------------------------+-------------------+------------------------+--------+
XmNaccelerator
Sets the accelerator on a button widget in a menu, which
activates a visible or invisible, but managed, button from
the keyboard. This resource is a string that describes a
set of modifiers and the key that may be used to select the
button. The format of this string is identical to that
used by the translations manager, with the exception that
only a single event may be specified and only KeyPress
events are allowed.

Accelerators for buttons are supported only for PushButtons
and ToggleButtons in Pulldown and Popup menu panes.

XmNacceleratorText
Specifies the text displayed for the accelerator. The text
is displayed adjacent to the label string or pixmap. The
direction of its layout depends on the XmNlayoutDirection
resource of the widget. Accelerator text for buttons is
displayed only for PushButtons and ToggleButtons in
Pulldown and Popup Menus.

XmNalignment
Specifies the label alignment for text or pixmap.

XmALIGNMENT_BEGINNING (left alignment)
Causes the left sides of the lines of text to be
vertically aligned with the left edge of the
widget window. For a pixmap, its left side is
vertically aligned with the left edge of the
widget window.

XmALIGNMENT_CENTER (center alignment)
Causes the centers of the lines of text to be
vertically aligned in the center of the widget
window. For a pixmap, its center is vertically
aligned with the center of the widget window.

XmALIGNMENT_END (right alignment)
Causes the right sides of the lines of text to be
vertically aligned with the right edge of the
widget window. For a pixmap, its right side is
vertically aligned with the right edge of the
widget window.

The preceding descriptions for text are correct when
XmNlayoutDirection is XmLEFT_TO_RIGHT. When that resource
is XmRIGHT_TO_LEFT, the descriptions for
XmALIGNMENT_BEGINNING and XmALIGNMENT_END are switched.

If the parent is a RowColumn whose XmNisAligned resource is
True, XmNalignment is forced to the same value as the
RowColumn's XmNentryAlignment if the RowColumn's
XmNrowColumnType is XmWORK_AREA or if the widget is a
subclass of XmLabel. Otherwise, the default is
XmALIGNMENT_CENTER.

XmNfontList
Specifies the font of the text used in the widget.
XmNfontList is obsolete and exists for compatibility with
previous releases. You should now use XmNrenderTable
instead of XmNfontList. If both are specified, the render
table will take precedence. If XmNfontList is NULL at
initialization, Label searches its parent hierarchy for an
ancestor that is a subclass of the XmBulletinBoard,
VendorShell, or XmMenuShell widget class. If such an
ancestor is found, Label initializes XmNfontList to the
XmNlabelFontList of the ancestor widget. Similarly, button
subclasses of Label initialize XmNfontList to the
XmNbuttonFontList of the ancestor widget. (Currently, all
subclasses of Label are button subclasses.) If no such
ancestor is found, the default is implementation dependent.
Refer to XmFontList(3) for more information on the creation
and structure of a font list.

XmNlabelInsensitivePixmap
Specifies a pixmap used as the button face if XmNlabelType
is XmPIXMAP and the button is insensitive. The default
value, XmUNSPECIFIED_PIXMAP, displays an empty label.

XmNlabelPixmap
Specifies the pixmap when XmNlabelType is XmPIXMAP or
XmPIXMAP_AND_STRING. The default value,
XmUNSPECIFIED_PIXMAP, displays an empty label.

XmNlabelString
Specifies the compound string when XmNlabelType is XmSTRING
or XmPIXMAP_AND_STRING. If this value is NULL, it is
initialized by converting the name of the widget to a
compound string. Refer to XmString(3) for more information
on the creation and structure of compound strings.

XmNlabelType
Specifies the label type.

XmSTRING Displays text using XmNlabelString.

XmPIXMAP Displays pixmap using XmNlabelPixmap or

XmPIXMAP_AND_STRING
Displays text and pixmap using XmNlabelPixmap or
XmNlabelInsensitivePixmap and XmNlabelString.

XmNmarginBottom
Specifies the amount of spacing between the bottom of the
label text and the top of the bottom margin specified by
XmNmarginHeight. This may be modified by Label's
subclasses. For example, CascadeButton may increase this
field to make room for the cascade pixmap.

XmNmarginHeight
Specifies an equal amount of spacing above the margin
defined by XmNmarginTop and below the margin defined by
XmNmarginBottom. XmNmarginHeight specifies the amount of
spacing between the top edge of the margin set by
XmNmarginTop and the bottom edge of the top shadow, and the
amount of spacing between the bottom edge of the margin
specified by XmNmarginBottom and the top edge of the bottom
shadow.

XmNmarginLeft
Specifies the amount of spacing between the left edge of
the label text and the right side of the left margin
(specified by XmNmarginWidth). This may be modified by
Label's subclasses. For example, ToggleButton may increase
this field to make room for the toggle indicator and for
spacing between the indicator and label. Whether this
actually applies to the left or right side of the label
depends on the value of the XmNlayoutDirection resource.

XmNmarginRight
Specifies the amount of spacing between the right edge of
the label text and the left side of the right margin
(specified by XmNmarginWidth). This may be modified by
Label's subclasses. For example, CascadeButton may increase
this field to make room for the cascade pixmap. Whether
this actually applies to the left or right side of the
label depends on the value of the XmNlayoutDirection
resource.

XmNmarginTop
Specifies the amount of spacing between the top of the
label text and the bottom of the top margin specified by
XmNmarginHeight. This may be modified by Label's
subclasses. For example, CascadeButton may increase this
field to make room for the cascade pixmap.

XmNmarginWidth
Specifies an equal amount of spacing to the left of the
margin defined by XmNmarginLeft and to the right of the
margin defined by XmNmarginRight. XmNmarginWidth specifies
the amount of spacing between the left edge of the margin
set by XmNmarginLeft and the right edge of the left shadow,
and the amount of spacing between the right edge of the
margin specified by XmNmarginRight and the left edge of the
right shadow.

XmNmnemonic
Provides the user with an alternate means of activating a
button. A button in a MenuBar, a Popup menu pane, or a
Pulldown menu pane can have a mnemonic.

This resource contains a keysym as listed in the X11 keysym
table. The first character in the label string that
exactly matches the mnemonic in the character set specified
in XmNmnemonicCharSet is underlined when the button is
displayed.

When a mnemonic has been specified, the user activates the
button by pressing the mnemonic key while the button is
visible. If the button is a CascadeButton in a MenuBar and
the MenuBar does not have the focus, the user must use the
MAlt modifier while pressing the mnemonic. The user can
activate the button by pressing either the shifted or the
unshifted mnemonic key.

XmNmnemonicCharSet
Specifies the character set of the mnemonic for the label.
The default is XmFONTLIST_DEFAULT_TAG.

XmNpixmapPlacement
The location of the pixmap with respect to the text label.
This resource can take one of the following values:
XmPIXMAP_TOP, XmPIXMAP_BOTTOM, XmPIXMAP_LEFT, and
XmPIXMAP_RIGHT. A type converter has been registered that
converts the following strings: "top", "bottom", "left",
and "right".

XmNpixmapTextPadding
The amount of space to be left between the pixmap and the
label string.

XmNrecomputeSize
Specifies a Boolean value that indicates whether the widget
shrinks or expands to accommodate its contents (label
string or pixmap) as a result of an XtSetValues resource
value that would change the size of the widget. If True,
the widget shrinks or expands to exactly fit the label
string or pixmap. If False, the widget never attempts to
change size on its own.

XmNrenderTable
Specifies the render table associated with the labelString.
If this value is NULL at initialization, Label searches its
parent hierarchy for an ancestor that holds the
XmQTspecifyRenderTable trait. If such an ancestor is
found, Label initializes XmNrenderTable to the
XmLABEL_RENDER_TABLE value of the ancestor widget.
Similarly, button subclasses of Label initialize
XmNrenderTable to the XmBUTTON_RENDER_TABLE value of the
ancestor widget. (Note that all current subclasses of Label
are button subclasses.) If no such ancestor is found, the
default is implementation dependent. If a font list and a
render table are both sepcified, the render table will take
precedence. Refer to XmRenderTable(3) for more information
on the creation and structure of a render table.

XmNstringDirection
Is a synthetic resource for setting XmNlayoutDirection.
The values for this resource are XmSTRING_DIRECTION_L_TO_R
and XmSTRING_DIRECTION_R_TO_L. Refer to the
XmNlayoutDirection resource description. The
XmNstringDirection resource is obsoleted by
XmNlayoutDirection, but is kept here for backward
compatibility.

Inherited Resources

Translations

XmLabel includes translations from Primitive. The XmLabel
translations are described in the following list.

The following key names are listed in the X standard key event
translation table syntax. This format is the one used by Motif to
specify the widget actions corresponding to a given key. A brief
overview of the format is provided under VirtualBindings(3). For a
complete description of the format, please refer to the X Toolkit
Instrinsics Documentation.

<Btn2Down>:
ProcessDrag()

:<Key><osfHelp>:
Help()

The translations used by subclasses of XmLabel for menu traversal are
described in the following list.

:<Key><osfCancel>:
MenuEscape()

:<Key><osfLeft>:
MenuTraverseLeft()

:<Key><osfRight>:
MenuTraverseRight()

:<Key><osfUp>:
MenuTraverseUp()

:<Key><osfDown>:
MenuTraverseDown()

Action Routines

The XmLabel action routines are

Help(): In a Popup or Pulldown 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.

MenuEscape():
In a MenuBar, disarms the CascadeButton and the menu and,
when the shell's keyboard focus policy is XmEXPLICIT,
restores keyboard focus to the widget that had the focus
before the menu was entered.

In a top-level 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, unposts the menu and moves the focus to
its CascadeButton.

In a Popup MenuPane, unposts the menu and, when the shell's
keyboard focus policy is XmEXPLICIT, restores keyboard
focus to the widget from which the menu was posted.

MenuTraverseDown():
If the current menu item has a submenu and is in a MenuBar,
then this action posts the submenu, disarms the current
menu item, and arms the submenu's first traversable menu
item.

If the current menu item is in a MenuPane, then this action
disarms the current menu item and arms the item below it.
This action wraps within the MenuPane. The direction of the
wrapping depends on the XmNlayoutDirection resource.

MenuTraverseLeft():
When the current menu item is in a MenuBar, then this
action disarms the current item and arms the MenuBar item
to the left. This action wraps within the MenuBar.

In MenuPanes, if the current menu item is not at the left
edge of a MenuPane, this action disarms the current item
and arms the item to its left. If the current menu item is
at the left edge of a submenu attached to a MenuBar item,
then this action unposts the submenu and traverses to the
MenuBar item to the left, wrapping if necessary. If that
MenuBar item has a submenu, it posts the submenu and arms
the first traversable item in the submenu. If the current
menu item is at the left edge of a submenu not directly
attached to a MenuBar item, then this action unposts the
current submenu only.

In Popup or Torn-off MenuPanes, when the current menu item
is at the left edge, this action wraps within the MenuPane.
If the current menu item is at the left edge of the
MenuPane and not in the top row, this action wraps to the
rightmost menu item in the row above. If the current menu
item is in the upper, leftmost corner, this action wraps to
the tear-off control, if present, or else it wraps to the
bottom, rightmost menu item in the MenuPane. The preceding
description applies when the XmNlayoutDirection horizontal
direction is XmLEFT_TO_RIGHT. If the XmNlayoutDirection
horizontal direction is XmRIGHT_TO_LEFT, then the following
applies.

If the current menu item is in a MenuBar, then this action
disarms the current item and arms the MenuBar item to the
left. This action wraps within the MenuBar.

In MenuPanes, if the current menu item is a CascadeButton,
then this action posts its associated submenu. If the
current menu item is not a CascadeButton and is not at the
left edge of a MenuPane, this action disarms the current
item and arms the item to its left, wrapping if necessary.
If the current menu item is not a CascadeButton and is at
the left edge of a submenu that is a descendent of a
MenuBar, then this action unposts all submenus and
traverses to the MenuBar item to the left. If that MenuBar
item has a submenu, it posts the submenu and arms the
submenu's first traversable item.

In Popup or Torn-off menus, if the current menu item is not
a CascadeButton and is at the left edge of a row (except
the bottom row), this action wraps to the rightmost menu
item in the row below. If the current menu item is not a
CascadeButton and is in the bottom, leftmost corner of a
Popup or Pulldown MenuPane, this action wraps to the tear-
off control, if present, or else it wraps to the top,
rightmost menu item of the MenuPane.

MenuTraverseRight():
If the current menu item is in a MenuBar, then this action
disarms the current item and arms the MenuBar item to the
right. This action wraps within the MenuBar.

In MenuPanes, if the current menu item is a CascadeButton,
then this action posts its associated submenu. If the
current menu item is not a CascadeButton and is not at the
right edge of a MenuPane, this action disarms the current
item and arms the item to its right, wrapping if necessary.
If the current menu item is not a CascadeButton and is at
the right edge of a submenu that is a descendent of a
MenuBar, then this action unposts all submenus and
traverses to the MenuBar item to the right. If that
MenuBar item has a submenu, it posts the submenu and arms
the submenu's first traversable item.

In Popup or Torn-off menus, if the current menu item is not
a CascadeButton and is at the right edge of a row (except
the bottom row), this action wraps to the leftmost menu
item in the row below. If the current menu item is not a
CascadeButton and is in the bottom, rightmost corner of a
Popup or Pulldown MenuPane, this action wraps to the tear-
off control, if present, or else it wraps to the top,
leftmost menu item of the MenuPane. The preceding
description applies when the XmNlayoutDirection horizontal
direction is XmLEFT_TO_RIGHT. If the XmNlayoutDirection
horizontal direction is XmRIGHT_TO_LEFT, then the following
applies. When the current menu item is in a MenuBar, then
this action disarms the current item and arms the MenuBar
item to the left. This action wraps within the MenuBar.

In MenuPanes, if the current menu item is not at the right
edge of a MenuPane, this action disarms the current item
and arms the item to its right. If the current menu item
is at the right edge of a submenu attached to a MenuBar
item, then this action unposts the submenu and traverses to
the MenuBar item to the right, wrapping if necessary. If
that MenuBar item has a submenu, it posts the submenu and
arms the first traversable item in the submenu. If the
current menu item is at the right edge of a submenu not
directly attached to a MenuBar item, then this action
unposts the current submenu only.

In Popup or Torn-off MenuPanes, when the current menu item
is at the right edge, this action wraps within the
MenuPane. If the current menu item is at the right edge of
the MenuPane and not in the top row, this action wraps to
the leftmost menu item in the row above. If the current
menu item is in the upper, rightmost corner, this action
wraps to the tear-off control, if present, or else it wraps
to the bottom, leftmost menu item in the MenuPane.

MenuTraverseUp():
When the current menu item is in a MenuPane, then this
action disarms the current menu item and arms the item
above it. This action wraps within the MenuPane. The
direction of the wrapping depends on the XmNlayoutDirection
resource.

ProcessDrag():
Drags the contents of a Label, identified when BTransfer is
pressed. This action sets the XmNconvertProc of the
DragContext to a function that calls the XmNconvertCallback
procedures, possibly multiple times, for the _MOTIF_DROP
selection. This action is undefined for Labels used in a
menu system.

Virtual Bindings

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

Core(3), XmCreateLabel(3), XmFontListAppendEntry(3),
XmStringCreate(3), XmStringCreateLtoR(3), XmPrimitive(3),
XmVaCreateLabel(3), and XmVaCreateManagedLabel(3).

XmLabel(library call)