showAlert
procedure showAlert(title: string; message:string; img:image; alertType:alert);

Displays an alert on the screen. The screen cannot contain any other form elements (except commands) when an alert is displayed. An alert can play the sound when it is displayed. Alert type can be any of the following:
var cm : command;
begin
showAlert('New message', 'You have just received a message from MrSmith', loadImage('/img1.png'), ALERT_INFO);
playAlertSound;
cm := createCommand('Read', CM_OK, 1);
addCommand(cm);
repeat
delay(100);
until getClickedCommand <> emptyCommand;
showForm; // this will clear alert from the screen
...
end.
See also: User-interface, playAlertSound