gtk-tree-drag-dest-row-drop-possible (dest path data)

dest -- a gtk-tree-drag-dest object
path -- a gtk-tree-path instance with the destination row
data -- a gtk-selection-data instance with the data being dragged

True if a drop is possible before dest.

Determines whether a drop is possible before the given dest, at the same depth as dest. I.e., can we drop the data in data at that location. The argument dest does not have to exist. The return value will almost certainly be false if the parent of dest does not exist, though.