Creates a new Polyline layer with a closed polyline (polygon) along the edge of the background layer.

The edge is determined by simulating a flood fill starting at the point specified by screenX and screenY (these are points within the control, not points of the bitmap).

Namespace: HiComponents.IEvolution
Assembly: IEvolution2 (in IEvolution2.dll) Version: 10.0.0.0

Syntax

         
 C#  Visual Basic  Visual C++ 
public int LayersCreateFromEdge(
	int screenX,
	int screenY,
	int tolerance,
	bool maxFilter
)
Public Function LayersCreateFromEdge ( _
	screenX As Integer, _
	screenY As Integer, _
	tolerance As Integer, _
	maxFilter As Boolean _
) As Integer
public:
int LayersCreateFromEdge(
	int screenX, 
	int screenY, 
	int tolerance, 
	bool maxFilter
)

Parameters

screenX
Int32
horizontal position of the starting point
screenY
Int32
vertical position of the starting point
tolerance
Int32
tolerance specifies the color difference between the starting pixel and the pixel being tested.
maxFilter
Boolean
Set maxFilter to True to apply a maximum filter that removes noise.

Return Value

Result is the index of the created layer, or -1 if the method fails

See Also