alert - Displays a popup alert box. Allegro game programming library.
int alert(const char *s1, *s2, *s3, const char *b1, *b2, int
Displays a popup alert box, containing three lines of text (s1-s3), and with
either one or two buttons. The text for these buttons is passed in `b1' and
`b2' (`b2' may be NULL), and the keyboard shortcuts in `c1' and `c2' as ASCII
alert(CONFIG_FILE, "not found.", "Using defaults.",
"&Continue", NULL, 'c', 0);
Returns 1 or 2 depending on which button was clicked. If the alert is dismissed
by pressing ESC when ESC is not one of the keyboard shortcuts, it treats it as
a click on the second button (this is consistent with the common
"Ok", "Cancel" alert).
alert3(3alleg4), gui_fg_color(3alleg4), exgui(3alleg4),