Hi,

I am attempting to integrate your standalone solver in my program but I am having difficulty working out how to utilise it's dragging functionality.

I assume I should set the point's parameter values to the new dragged position.
I can then set Slvs_System::dragged[] to the above parameters.
I can finally constrain that point with SLVS_C_WHERE_DRAGGED

This seems to work, however the resultant position doesn't lie exactly on the input position.
As a work around, instead of using the constraint / dragged[], I attempted to change the group of the dragged point, so that it is fixed. This now ensures the point I drag will end on the input position.

I also noticed that it seems to make no difference whether I use the SLVS_C_WHERE_DRAGGED constraint or not so i'm not sure what this is actually doing?

So my first question is: How should I use dragging properly?

And my second question is: Is there a way to drag a selection of items such that they stay relative to each other?