MSGBOX Statement
Displays a message in a dialog box, waits for the user to click a button
MSGBOX(message)
Arguments
message String - String expression displayed as the message in the dialog box.
Remarks
The maximum length of prompt is approximately 1024 characters, depending on the width of the characters used. If prompt consists of more than one line, you can separate the lines using a carriage return character (Chr(13)), a linefeed character (Chr(10)), or carriage return–linefeed character combination (Chr(13) & Chr(10)) between each line.
Example
DIM value as string
MSGBOX value
MSGBOX "Complete"