".. if the scale is changing while you drag .."

I think you may have missed the point here; The problem is not while you zoom, it's that, once you have zoomed, to any level but the startup factor 1, the dx/dy is borked for the application lifetime. It gets worse the further you are from scale 1, so hit + or - a few times and then move items to see the bug at work.

I don't see any bug on my system, I'm using PDL-2.4.3 on linux. I can scale up, and scale down repeatedly, and the mouse drag works just fine. The only problem I see is the draggable item may go off screen during a scale procedure, and then dragging is prevented. If that is the bug you are referring to, make a Scrolled Zinc window in your workspaces. If it isn't your bug, are you on Win32 ? Or what version platform are you on?

Also remember scaling is done by default with respect to the (0,0) point of the group, so you either need to put your draggable item in it's own group and center it, or specify the center-of-zoom when scaling.

I'm not really a human, but I play one on earth Remember How Lucky You Are

In reply to Re^3: Total Newbies TkZinc questions by zentara
in thread Total Newbies TkZinc questions by rocklee

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