checking cancel button

[Brian Yennie]

Stephen,

Try this -

In your repeat loop, add the line:
"wait for 1 milliseconds with messages"
This will allow the user to click the cancel button.

Now.. in the cancel button script set a global variable to some 
predetermined value (say, "cancel").

Finally, back in the repeat loop - check for the special value in the 
global variable. If it's set, the user must have hit the cancel button.

HTH,
Brian

> hi
> i can't seem to figure out how to switch context to a button - to see 
> if its
> been clicked and to -allow- the mouse to click it..
>
> i have a handler that reads through a file and puts the status into a 
> progress
> bar.
> I have stuck a button (cancel) on the card
>
> question is how do i get the repeat statement in the handler to switch 
> context
> to the btn?, and check if the button has been depressed.
> i have a mouse up statement in the btn but no matter what i do
> the card ignores the button completely until its finished the repeat
>
> what i want to do is something like.....
>
> repeat for each line L in testfile
> add 1 to num
> if cancel button depressed exit repeat
> set thumbpos of sb progbar to num
> end repeat
>
> how do i check the state of the mouse button to see if its been 
> depressed??
>
> thanks
> stephen
>
>
>
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