I am wanting to update the positions of fields on a form multiple times a second as if they are being animated. I'm struggling to find a way to do this. I tried using sleep in a while loop but it causes the UI to hang.

Looking around, the UTimer or some kind of periodic messaging to run triggers may work, but I don't know how to use those things. 

Any thoughts? 

i would look at the command show, and put it within the loop

Interesting, thank you. Do you have any solution to being able to handle user input while this loops happens? Right now, any interaction seems frozen while in that loop. 

Starting a utimer. 

	newinstance "UTIMER","%%$instancename%%%_UT"
	if($status = -154)
		activate "%%$instancename%%%_UT".STOP()
	endif
	activate "%%$instancename%%%_UT".SETREPEAT(1)
	activate "%%$instancename%%%_UT".SETMESSAGE($instancename,"REFRESH","%%$datim%%%")
	activate "%%$instancename%%%_UT".START("00:00:01")

Catching the message in the async/receivemessage trigger. 

trigger receiveMessage
	if($result="message")
		selectcase $msgid
		case "REFRESH"

This will run one instance of the message, so if you want it to repeat, run the start process again at the end of the code called by the async trigger (or set the setrepeat option to a very large number and use STOP to close the utimer down when appropriate. 

It appears that 'one second' is the minimum timer. (You might try setting a variable to a smaller number of ticks and then using that as the parameter.)

Regards, 

Iain