.NH 2
Command Widget
.XS
	Command Widget
.XE
.IN "Command widget" "" "@DEF@"
.Ds 0
.TA 2.0i
.ta 2.0i
.sp
Application header file	<X11/Xaw/Command.h>
.IN "Command.h" ""
Class header file	<X11/Xaw/CommandP.h>
.IN "CommandP.h" ""
Class	commandWidgetClass
.IN "commandWidgetClass" ""
Class Name	Command
.IN "Command widget" "class name"
Superclass	Label
.sp
.De
.LP
The Command widget is an area, often rectangular, that contains a text
label or bitmap image.  Those selectable areas are often referred to as
"buttons".  When the pointer cursor is on a button, it becomes
highlighted by drawing a rectangle around its perimeter.  This
highlighting indicates that the button is ready for selection.  When
pointer button 1 is pressed, the Command widget indicates that it has
been selected by reversing its foreground and background colors.  When
the button is released, the Command widget's \fBnotify\fP action will be
invoked, calling all functions on its callback list.  If the pointer is
moved out of the widget before the button is released, the widget
reverts to its normal foreground and background colors, and releasing
the button has no effect.  This behavior allows the user to cancel an
action.
.NH 3
Resources
.LP
When creating a Command widget instance, the following resources are
retrieved from the argument list or from the resource database:
.LP
.IN "Command widget" "resources"
.ps 9
.nr PS 9
.vs 11
.nr VS 11
.TS H
lw(1i) lw(1i) lw(1i) lw(.5i) lw(2i).
_
.sp 3p
.TB
Name	Class	Type	Notes	Default Value
.sp 3p
_
.TH
.R
.sp 3p
accelerators	Accelerators	AcceleratorTable		NULL
ancestorSensitive	AncestorSensitive	Boolean	D	True
background	Background	Pixel		XtDefaultBackground
backgroundPixmap	Pixmap	Pixmap		XtUnspecifiedPixmap
bitmap	Bitmap	Pixmap		None
borderColor	BorderColor	Pixel		XtDefaultForeground
borderPixmap	Pixmap	Pixmap		XtUnspecifiedPixmap
borderWidth	BorderWidth	Dimension		1
callback	Callback	XtCallbackList		NULL
colormap	Colormap	Pointer		Parent's Colormap
cornerRoundPercent	CornerRoundPercent	Dimension		25
cursor	Cursor	Cursor		None
depth	Depth	int	C	Parent's Depth
destroyCallback	Callback	XtCallbackList		NULL
font	Font	XFontStruct		XtDefaultFont
foreground	Foreground	Pixel		XtDefaultForeground
height	Height	Dimension	A	Font height + 2 * \fBinternalHeight\fP
highlightThickness	Thickness	Dimension	A	2 (0 if Shaped)
insensitiveBorder	Insensitive	Pixmap		GreyPixmap
internalHeight	Height	Dimension		2
internalWidth	Width	Dimension		4
justify	Justify	Justify		XtJustifyCenter (center)
label	Label	String		name of widget
mappedWhenManaged	MappedWhenManaged	Boolean		True
resize	Resize	Boolean		True
screen	Screen	Pointer	R	Parent's Screen
sensitive	Sensitive	Boolean		True
shapeStype	ShapeStyle	ShapeStyle		Rectangle
translations	Translations	TranslationTable		See below
width	Width	Dimension	A	\fBlabel\fP width + 2 * \fBinternalWidth\fP
x	X	Position		0
y	Y	Position		0
.sp 3p
_
.TE
.ps 11
.nr PS 11
.vs 13
.nr VS 13
\" Resource Descriptions
.Ac
.As
.Bg
.Gp
.Bm
.Bc
.Bp
.Bw
.Cb Bold
.Cm
.Cr Bold
.Cu
.Dp
.Dc
.Lf
.Lg
.Hw
.Ht Bold
.Ib
.Ih
.Ju
.La
.Mm
.Re
.Sc
.Se
.Ss Bold
.Tr
.Xy
.NH 3
Command Actions
.IN "Command widget" "actions"
.LP
The Command widget supports the following actions:
.IP \(bu 5
Switching the button's interior between the foreground and background
colors with \fBset\fP, \fBunset\fP, and \fBreset\fP.
.IP \(bu 5
Processing application callbacks with \fBnotify\fP
.IP \(bu 5
Switching the internal border between highlighted
and unhighlighted states with \fBhighlight\fP and \fBunhighlight\fP
.LE
.LP
.IN "Command widget" "translation bindings"
The following are the default translation bindings used by the
Command widget: 
.LP
.Ds 0
.TA .5i 2.25i
.ta .5i 2.25i
	<EnterWindow>:	highlight(\|)
	<LeaveWindow>:	reset(\|)
	<Btn1Down>:	set(\|)
	<Btn1Up>:	notify(\|) unset(\|)
.De
.LP
The full list of actions supported by Command is:
.IP \fBhighlight\fP(\fIcondition\fP) 1.5i
Displays the internal highlight border in the color (\fBforeground\fP
or \fBbackground\fP ) that contrasts with the interior color of the
Command widget.  The conditions \fBWhenUnset\fP and \fBAlways\fP are
understood by this action procedure.  If no argument is passed,
\fBWhenUnset\fP is assumed.
.IP \fBunhighlight\fP(\|) 1.5i
Displays the internal highlight border in the color (\fBforeground\fP
or \fBbackground\fP ) that matches the interior color of the
Command widget.  
.IP \fBset\fP(\|) 1.5i
Enters the \fIset\fP state, in which \fBnotify\fP is possible.  This
action causes the button to display its interior in the
\fBforeground\fP color.  The label or bitmap is displayed in the
\fBbackground\fP color. 
.IP \fBunset\fP(\|) 1.5i
Cancels the \fIset\fP state and displays the interior of the button in the
\fBbackground\fP color.  The label or bitmap is displayed in the
\fBforeground\fP color.
.IP \fBreset\fP(\|) 1.5i
Cancels any \fIset\fP or \fIhighlight\fP and displays the interior of the
button in the \fBbackground\fP color, with the label or bitmap displayed
in the \fBforeground\fP color.
.IP \fBnotify\fP(\|) 1.5i
When the button is in the \fBset\fP state this action calls all functions in
the callback list named by the \fBcallback\fP resource.  The value of
the \fIcall_data\fP argument passed to these functions is undefined. 
.LP
.NT
When a bitmap of depth greater that one (1) is specified the
\fIset\fP(), \fIunset\fP(), and \fIreset\fP() actions have no effect,
since there are no foreground and background colors used in a
multi-plane pixmap.
.NE
