SparseMatAddref Method OpenCvSharp Class Library
manually increments the reference counter to the header.

Namespace:  OpenCvSharp.CPlusPlus
Assembly:  OpenCvSharp.CPlusPlus (in OpenCvSharp.CPlusPlus.dll) Version: 1.0.0.0 (1.0.0.0)
Syntax

public void Addref()
See Also

Reference