{"identifier":5306,"topic":"HyperTalk basics","name":"What are messages?","text":"A message is simply an announcement that an event has occurred: The user has clicked the mouse, requested the answer to<code> 4 * 3<\/code>, added a new card to a stack, and so on.   <br><br>\n\n To understand messages, think of mailing a letter to a friend. You write a message and place it inside an envelope. Then you address the envelope and send it to your friend. <br>\n<br>\nHyperCard does the same thing:   <br><br>\n\n 1.  It determines the content of a       message (what just happened).   <br><br>\n\n 2.  It decides where to send the       message. <br>\n","related":{"6658":"Handling messages","26982":"on","10397":"Writing function handlers","9950":"Writing message handlers"},"examples":"","demo":"","debug":{"9":["A message is simply "],"10":["HyperCard does the s"]}}