## Dragging of Geometric Objects

This item describes the functions that implement interactive
underdefined sketch manipulation mode that is called dragging.
Initialize dragging mode for an object control point:

```cpp
GCE_result GCE_PrepareDraggingPoint(GCE_system gSys, GCE_dragging_point drgPnt, GCE_point curXY)  
```

Initialize control point dragging mode for a set of objects:

```cpp
GCE_result GCE_PrepareDraggingPoint(GCE_system gSys, 
                                    const std::vector<GCE_dragging_point> & cPntArr, 
                                    GCE_point curXY)   
```

Initialize dragging mode for a set of objects:

```cpp
GCE_result GCE_PrepareMovingGeoms(GCE_system gSys, std::vector<geom_item> & geoms
                                                 , GCE_point curXY) 
```

Move the dragging point:

```cpp
GCE_result GCE_MovePoint(GCE_system gcSys, GCE_point curXY)   
```