is lock cursor of any use whatsoever?

[Björnke von Gierke]

Hi

I am trying to draw shapes (in images, not graphics) without user  
interaction. although it's slow I am able to draw what I want.  
Unfortunately the cursor always flashes when I change the tool, which  
Ido not want (no user interaction and such). lock cursor doesn't help  
in any way.

I also tried to set the cursor to empty beforehand, and then made a  
mousemove handler with just "unlock cursor" in it. because if there's  
no tool, then there is no flashing. Unfortunately "click at x,y" does  
evoke a mouseMove, so I can't even do that.

So assuming a script similar as below, is there any way for  
prohibiting a cursor change? Is there any way to use choose and click  
without constant cursor flickering? Or maybe there's another way to  
draw (in my case mainly erase) wthin images at least somewhat quickly?

thanks
Bjoernke

Example code which flickers the cursor:

on mouseUp
   lock cursor
   choose brush tool
   set the brush to 5
   click at 20,20
   choose browse tool
   unlock cursor
end mouseUp

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