Par2: Closing all open windows
2000-05-31 -- Randy Goodhew
Here is a snippet of source code that allows you to
post an event to all threads without having the
overhead of creating a global queue and the code
needed to manage that queue.
! PostAll(),LONG ! returns a count of all threads posted
PostAll FUNCTION(LONG pEvent)
Save:Thread LONG,AUTO ! save the thread
J LONG,AUTO ! loop counter
Result SHORT,AUTO ! count of active threads
CODE
Result = 0 ! blank the count
Save:Thread = THREAD() ! save current thread
LOOP J = 64 TO 1 BY -1 ! loop through threads
SETTARGET(,J) ! attemp to set thread
IF J = THREAD() ! test if thread exists
Result += 1 ! increment count
IF NOT OMITTED(1) ! count threads only, if event is omitted
POST(pEvent,,J) ! post event
END !if
END !if
END !loop
SETTARGET(,Save:Thread) ! restore saved thread
RETURN(Result)
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