tk_messageBox - pops up a message window and waits for user response.
SYNOPSIS
tk_messageBox ?option value ...?
DESCRIPTION
This procedure creates and displays a message window with an
application-specified message, an icon and a set of buttons. Each of
the buttons in the message window is identified by a unique symbolic
name (see the -type options). After the message window is
popped up, tk_messageBox waits for the user to select one of the
buttons. Then it returns the symbolic name of the selected button.
The following option-value pairs are supported:
-defaultname
Name gives the symbolic name of the default button for
this message window ('ok', 'cancel', and so on). See -type
for a list of the symbolic names. If this option is not specified,
the first button in the dialog will be made the default.
-iconiconImage
Specifies an icon to display. IconImage must be one of the
following: error, info, question or
warning. If this option is not specified, then the info icon will be
displayed.
-messagestring
Specifies the message to display in this message box.
-parentwindow
Makes window the logical parent of the message box. The message
box is displayed on top of its parent window.
-titletitleString
Specifies a string to display as the title of the message box. The
default value is an empty string.
-typepredefinedType
Arranges for a predefined set of buttons to be displayed. The
following values are possible for predefinedType:
abortretryignore
Displays three buttons whose symbolic names are abort,
retry and ignore.
ok
Displays one button whose symbolic name is ok.
okcancel
Displays two buttons whose symbolic names are ok and cancel.
retrycancel
Displays two buttons whose symbolic names are retry and cancel.
yesno
Displays two buttons whose symbolic names are yes and no.
yesnocancel
Displays three buttons whose symbolic names are yes, no
and cancel.
EXAMPLE
set answer [tk_messageBox -message "Really quit?" -type yesno -icon question]
switch -- $answer {
yes exit
no {tk_messageBox -message "I know you like this application!" -type ok}
}