receiving messages during a drag

[Eric Chatonet]

Bonjour Ben,

Have a look at Trevor's workaround:
http://revolution.screenstepslive.com/lessons/2034-Inability-To-Send- 
Messages-During-Drag-Operation-Workaround

Le 13 nov. 08 à 10:42, Ben Rubinstein a écrit :

> I'm trying to accept a drag+drop into a scrolling group.  All fine,  
> except that I want to have the group scroll automatically if the  
> user hovers over the top or bottom.
>
> If the dragMove shows that the position is at top or bottom of the  
> area, I want to scroll the group a bit; then if they're still then  
> a few ticks later, scroll it a bit more.
>
> Picking up the dragMove into an appropriate spot is fine; but I  
> then tried to send myself a message to scroll a bit more, which I  
> cancel if they move out of the zone.  However, it seems that  
> messages aren't sent while a drag is in progress - instead the  
> first message isn't sent until the drag ends.  So I currently I  
> have something where the user has to wiggle around at the end of  
> the group to scroll it - not great!
>
> Is this a known problem?  Is there a way to get periodic operations  
> during a drag?
>
> Or do I have to block, once I detect that I'm starting to scroll  
> the group, and just poll the mouse position and mousebutton to kep  
> scrolling until the mouse moves or the button is released or I'm  
> scrolled all the way?
>
> (And if it is the case that periodic operations are simply stopped  
> during a drag; is this a bug?)
>
> TIA,
>
> - Ben

Best regards from Paris,
Eric Chatonet.
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