grtext
(grtext location string)
The grtext function displays text in the message area of the status bar of the program's desktop.
The grtext function may be used by the developer to display cursor positions (absolute or polar coordinates) in the status bar. When the user moves the cursor, the string written to the status line disappears. Therefore, developers should use the function only in actions that are combined with the grread function. It makes no sense to use it to display prompts or messages.
The length of the string that can be displayed depends on the screen resolution configured for the system. If the string contains more words than the message box in the status line can display, the text is truncated at the last word it can display.
(grtext "Status bar message")