At 12:46 PM +0200 13/10/1999, Eva Isotalo wrote:
>Hi everybody,
>
>When dragging an image and at the same time clicking the second
>mouse button (Win98) the image "sticks" to the the mouseloc and
>nothing else can be done.
>
>Any one have an idea of how I can prevent this?
>The script in the image looks something like following:
>
>on mouseDown
> repeat until the mouse is up
> set loc of me to the mouseLoc
> end repeat
># and other stuff here
>end mouseDown
>
>I've found the 'repeat' to be better in my case than the 'grab'.
>
>Thanks in advance.
Hi Eva
I have some experience of this. Not pleasant. :(
I don't have the scripts to hand, so this is from memory. But I think
when a user clicks the second mouse button while the first one is
down, a second mouseDown is sent. The problem is with the mouseUps. I
can't remember exactly, but depending on the organisation of objects,
the mouseUps may not be received by the object in question, or even
be received at all. (I think the missing mouseUp problem only occurs
when the clicked object is part of a group.) In my case, also a
dragging thing, I set a local (declared at the top of the script) in
the mouseDown, and checked this before performing any action. And
then forced a mouseUp if this flag hadn't been set. My dragging
routine used a mouseMove handler, so your solution may be different.
It was something like this:
local lcDragging
on mouseDown
if not lcDragging then
put true into lcDragging
-- do stuff here
else
mouseUp
end if
end mouseDown
on mouseMove
if lcDragging then
--do drag stuff here
end if
end mouseMove
on mouseUp
if lcDragging then
-- do stuff here
put false into lcDragging
end if
end mouseUp
on mouseRelease
mouseUp
end mouseRelease
The result was that a click on a second mouse button was the same as
releasing the mouse button. I liked this, because it discouraged such
clicking behavior among users, and was far kinder than cutting off
their fingers. :)
Cheers
Dave Cragg
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