tk_messageBox manual page - Tk Built-In Commands

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:

-command string

Specifies the prefix of a Tcl command to invoke when the user closes the dialog. The actual command consists of string followed by a space and the name of the button clicked by the user to close the dialog. This is only available on macOS.

-default name

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.

-detail string

Specifies an auxiliary message to the main message given by the -message option. The message detail will be presented beneath the main message and, where supported by the OS, in a less emphasized font than the main message.

-icon iconImage

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.

-message string

Specifies the message to display in this message box. The default value is an empty string.

-parent window

Makes window the logical parent of the message box. The message box is displayed on top of its parent window.

-title titleString

Specifies a string to display as the title of the message box. The default value is an empty string.

-type predefinedType

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. This is the default.
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?" \
        -icon question -type yesno \
        -detail "Select \"Yes\" to make the application exit"]
switch -- $answer {
    yes exit
    no {tk_messageBox -message "I know you like this application!" \
            -type ok}
}

KEYWORDS

message box