Class OpenCvSafeHandle

Namespace

OpenCvSharp

Assembly

OpenCvSharp.dll

Base class for SafeHandle instances wrapping native OpenCV pointers. Provides a common SafeHandle implementation where IntPtr.Zero is the invalid handle value.

public abstract class OpenCvSafeHandle : SafeHandle, IDisposable

Inheritance

object

CriticalFinalizerObject

SafeHandle

OpenCvSafeHandle

Implements

IDisposable

Derived

MatSafeHandle

Inherited Members

SafeHandle.handle

SafeHandle.Close()

SafeHandle.DangerousAddRef(ref bool)

SafeHandle.DangerousGetHandle()

SafeHandle.DangerousRelease()

SafeHandle.Dispose()

SafeHandle.Dispose(bool)

SafeHandle.ReleaseHandle()

SafeHandle.SetHandle(nint)

SafeHandle.SetHandleAsInvalid()

SafeHandle.IsClosed

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Constructors

OpenCvSafeHandle()

Initializes a new instance of the OpenCvSafeHandle class that owns the handle.

protected OpenCvSafeHandle()

OpenCvSafeHandle(bool)

Initializes a new instance of the OpenCvSafeHandle class.

protected OpenCvSafeHandle(bool ownsHandle)

Parameters

ownsHandle bool

true if this instance owns the handle and should release it on disposal; false for a borrowed (non-owning) wrapper around an existing pointer.

OpenCvSafeHandle(nint, bool)

Initializes a new instance of the OpenCvSafeHandle class with an existing handle.

protected OpenCvSafeHandle(nint existingHandle, bool ownsHandle)

Parameters

existingHandle nint

The pre-existing native pointer to wrap.

ownsHandle bool

true if this instance owns the handle and should release it on disposal; false for a borrowed (non-owning) wrapper.

Properties

IsInvalid

When overridden in a derived class, gets a value indicating whether the handle value is invalid.

public override bool IsInvalid { get; }

Property Value

bool

true if the handle value is invalid; otherwise, false.

Null

A non-owning handle wrapping a null native pointer. Pass this for an optional SafeHandle-typed P/Invoke argument (e.g. a mask) when the caller has none, instead of overloading the parameter type with a plain nint.

public static OpenCvSafeHandle Null { get; }

Property Value

OpenCvSafeHandle