Class Region

Wrap a NetVips.Internal.VipsRegion object.

Inheritance

object

CriticalFinalizerObject

SafeHandle

GObject

VipsObject

Region

Implements

IDisposable

Inherited Members

VipsObject.OnPostClose

VipsObject.GetTypeOf(string)

VipsObject.GetBlurb(string)

VipsObject.GetDescription()

GObject.SignalConnect<T>(string, T, nint)

GObject.SignalHandlerDisconnect(ulong)

GObject.SignalHandlersDisconnectByFunc<T>(T, nint)

GObject.SignalHandlersDisconnectByData(nint)

GObject.ReleaseHandle()

GObject.IsInvalid

SafeHandle.handle

SafeHandle.Close()

SafeHandle.DangerousAddRef(ref bool)

SafeHandle.DangerousGetHandle()

SafeHandle.DangerousRelease()

SafeHandle.Dispose()

SafeHandle.Dispose(bool)

SafeHandle.SetHandle(IntPtr)

SafeHandle.SetHandleAsInvalid()

SafeHandle.IsClosed

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: NetVips

Assembly: NetVips.dll

Syntax

public class Region : VipsObject, IDisposable

Remarks

A region is a small part of an image. You use regions to read pixels out of images without storing the entire image in memory. At least libvips 8.8 is needed.

Properties

Height

Height of pixels held by region.

Declaration

public int Height { get; }

Property Value

Type	Description
int

Width

Width of pixels held by region.

Declaration

public int Width { get; }

Property Value

Type	Description
int

Methods

Fetch(int, int, int, int)

Fetch an area of pixels.

Declaration

public byte[] Fetch(int left, int top, int width, int height)

Parameters

Type	Name	Description
int	left	Left edge of area to fetch.
int	top	Top edge of area to fetch.
int	width	Width of area to fetch.
int	height	Height of area to fetch.

Returns

Type	Description
byte[]	An array of bytes filled with pixel data.

New(Image)

Make a region on an image.

Declaration

public static Region New(Image image)

Parameters

Type	Name	Description
Image	image	Image to create this region on.

Returns

Type	Description
Region	A new Region.

Exceptions

Type	Condition
VipsException	If unable to make a new region on image.

Implements

IDisposable