A fast and easily customised operating system
for ARM devices
Page "*Commands/versions/new" does not exist. Please create it now, or hit the "back" button in your browser.
User_Message_Acknowledge
Programmer's Reference Manuals
» Part 7 - The Desktop
» The Window Manager
» SWI Calls
» Wimp_Poll
» Reason Codes
» User_Message_Acknowledge
User_Message_Acknowledge
(Reason Code 19)
| Exit | |
|---|---|
| Block | |
| +0 | Length of block |
| +4 | Handle of sender |
| +8 | My ref (senders reference number for this message) |
| +12 | Your ref (senders reference number for a previous message) |
| +16 | Message Code |
| +20 | … data… |
Use
This code is returned from Wimp_Poll and indicates that the message sent from this task was not acknowledged by any recipients.
Notes
A task that does not understand a message code should simply ignore it. Tasks should not respond to messages for no reason. When no tasks respond to a User_Message_Recorded message, the Wimp will send this message back to the task that originally sent the message.
The message code determines the meaning of the message sent.