Initiates, and establishes settings for, image dragging functionality.
Child of: <image name="">
Parent of: <focalX>, <focalY>, <maxMagnification>, <minMagnification>, <maximumDistance>, <edge_detection>
See also: <drag_drop>, <drag_move>
Example:
<drag_info>
<focalX>150</focalX>
<focalY>125</focalY>
<maxMagnification>1</maxMagnification>
<minMagnification>.25</minMagnification>
<maximumDistance>100</maximumDistance>
<edge_detection>50</edge_detection>
</drag_info>