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'\"
'\" Copyright (c) 1996, Expert Interface Technologies
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\" 
'\" The file man.macros and some of the macros used by this file are
'\" copyrighted: (c) 1990 The Regents of the University of California.
'\"              (c) 1994-1995 Sun Microsystems, Inc.
'\" The license terms of the Tcl/Tk distrobution are in the file
'\" license.tcl.
.so man.macros
'----------------------------------------------------------------------
.HS tixBalloon tix 4.0
.BS
'
'
'----------------------------------------------------------------------
.SH NAME
tixBalloon \- Create and manipulate tixBalloon widgets
'
'
'
'----------------------------------------------------------------------
.SH SYNOPSIS
\fBtixBalloon\fI \fIpathName ?\fIoptions\fR?
'
'
'----------------------------------------------------------------------
.PP
.SH SUPER-CLASS
The \fBtixBalloon\fR class is derived from the \fBTixShell\fR
class and inherits all the commands, options and subwidgets of its
super-class.
'
'----------------------------------------------------------------------
.SH "STANDARD OPTIONS"
'
The Balloon widget supports all the standard options of a frame widget.
See the \fBoptions(n)\fR manual entry for details on the standard options.
'
'
'----------------------------------------------------------------------
.SH "WIDGET-SPECIFIC OPTIONS"
'
'----------BEGIN
.LP
.nf
Name:           \fBinitWait\fR
Class:          \fBInitWait\fR
Switch:         \fB\-initwait\fR
.fi
.IP
In milliseconds. Specifies how long the balloon should wait before
popping up in a widget.
'----------END
'
'----------BEGIN
.LP
.nf
Name:           \fBstate\fR
Class:          \fBState\fR
Switch:         \fB\-state\fR
.fi
.IP
Specifies the which help message to display when the mouse pointer
enters a widget associated with this balloon. Valid options are
\fBboth\fR: display both the balloon message and the status bar
message, \fBballoon\fR: display only the balloon message,
\fBstatus\fR: display only the status bar message and \fBnone\fR:
display no messages.
'----------END
'
'
'----------BEGIN
.LP
.nf
Name:           \fBstatusBar\fR
Class:          \fBstatusBar\fR
Switch:         \fB\-statusbar\fR
.fi
.IP
Specifies the widget to use as the status bar of this balloon. This
widget must have a "-text" option. Usually a label widget is used.
'----------END
'
'----------------------------------------------------------------------
.SH SUBWIDGETS
'----------BEGIN
.LP
.nf
Name:           \fBlabel\fR
Class:          \fBLabel\fR
.fi
.IP
The label widget that shows the little arrow bitmap in the pop-up
balloon window.
'----------END
'
'----------BEGIN
.LP
.nf
Name:           \fBmessage\fR
Class:          \fBLabel\fR
.fi
.IP
The message widget that shows the descriptive message in the the pop-up
balloon window.
'----------END
'
.BE
'
'
'----------------------------------------------------------------------
.SH DESCRIPTION
'
.PP
'
The \fBtixBalloon\fR command creates a new window (given by the
\fIpathName\fR argument) and makes it into a Balloon widget.
Additional options, described above, may be specified on the command
line or in the option database to configure aspects of the
Balloon widget such as its cursor and relief.

The Balloon widget can be used to show popped-up messages
that describe the functions of the widgets in an application. A
Balloon widget can be bound to a number of widgets. When the user
moves the cursor inside a widget to which a Balloon widget has been
bound, a small pop-up window with a descriptive message will be shown
on the screen.
'
'----------------------------------------------------------------------
.SH WIDGET COMMANDS
.PP
'
The \fBtixBalloon\fR command creates a new Tcl command whose name is
the same as the path name of the Balloon widget's window.  This
command may be used to invoke various operations on the widget. It has
the following general form:
'
.DS C
'
\fIpathName option \fR?\fIarg arg ...\fR?
.PP
.DE
'
\fIPathName\fR is the name of the command, which is the same as the
Balloon widget's path name. \fIOption\fR and the \fIarg\fRs
determine the exact behavior of the command. The following commands
are possible for Balloon widgets:
.TP
\fIpathName \fBbind\fR widget ?\fIoption value ... \fR?
'
Binds the Balloon widget to the \fIwidget\fR. The messages to be
shown can be passed as extra arguments to this command in \fIoption
value\fR pairs. Possible options: \fB\-balloonmsg\fR specifies the
string to show on the pop-up balloon window; \fB\-statusmsg\fR
specifies the string to show on the status bar; \fB\-msg\fR specifies a
string to show on both the balloon window and the stats bar window.
When used together, the \fB\-msg\fR option has a lower precedence than
the \fB\-balloonmsg\fR and \fB\-statusmsg\fR options.

The \fBbind\fR command can also be used to change the messages after
the initial bindings were set. Example:
.PP
.nf
        button .b
        tixBalloon .bal

        # Add balloon binding
        .bal bind .b -msg "This is a button"

        ...

        # Change the balloon binding
        .bal bind .b -msg "This is a useful button"
.fi
'
.TP
\fIpathName \fBcget\fR \fIoption\fR
'
Returns the current value of the configuration option given by
\fIoption\fR. \fIOption\fR may have any of the values accepted by the
\fBtixBalloon\fR command.
'
.TP
'
\fIpathName \fBconfigure\fR ?\fIoption\fR? \fI?value option value ...\fR?
'
Query or modify the configuration options of the widget.  If no
\fIoption\fR is specified, returns a list describing all of the
available options for \fIpathName\fR (see \fBTk_ConfigureInfo\fR for
information on the format of this list).  If \fIoption\fR is specified
with no \fIvalue\fR, then the command returns a list describing the
one named option (this list will be identical to the corresponding
sublist of the value returned if no \fIoption\fR is specified).  If
one or more \fIoption\-value\fR pairs are specified, then the command
modifies the given widget option(s) to have the given value(s); in
this case the command returns an empty string.  \fIOption\fR may have
any of the values accepted by the \fBtixBalloon\fR command.
'
'
'
.TP
\fIpathName \fBunbind\fI widget\fR
'
Cancels the Balloon widget's binding with \fIwidget\fR.
'
'
.TP
\fIpathName \fBsubwidget \fI name ?args?\fR 
'
When no options are given, this command returns the pathname of the
subwidget of the specified name.

When options are given, the widget command of the specified subwidget
will be called with these options.
'
'
'----------------------------------------------------------------------
.SH BINDINGS
.PP
After a widget has be bound to a Balloon widget, when the user moves
the cursor into this widget, the Balloon widget is activated: if the
\fB\-balloonmsg\fR option of this widget is set, the balloon window
pops up; if the \fB\-statusmsg\fR option of this widget is set, the
message will be displayed in the status bar widget.
.PP
When the user moves the cursor out of the widget, the Balloon widget
is de-activated: the balloon window is withdrawn and the status-bar
message removed.
'
'
'
'----------------------------------------------------------------------
.SH KEYWORDS
Tix(n)