Class GValue

Wrap GValue in a C# class.

Inheritance
object
GValue
Implements
Inherited Members
Namespace: NetVips
Assembly: NetVips.dll
Syntax
public class GValue : IDisposable
Remarks

This class wraps GValue in a convenient interface. You can use instances of this class to get and set GObject properties.

On construction, GValue is all zero (empty). You can pass it to a get function to have it filled by GObject, or use init to set a type, set to set a value, then use it to set an object property.

GValue lifetime is managed automatically.

Constructors

GValue()

Initializes a new instance of the GValue class.

Declaration
public GValue()

Fields

ArrayDoubleType

The fundamental type for VipsArrayDouble.

Declaration
public static readonly nint ArrayDoubleType
Field Value
Type Description
nint

ArrayImageType

The fundamental type for VipsArrayImage.

Declaration
public static readonly nint ArrayImageType
Field Value
Type Description
nint

ArrayIntType

The fundamental type for VipsArrayInt.

Declaration
public static readonly nint ArrayIntType
Field Value
Type Description
nint

BlendModeType

The fundamental type for VipsBlendMode. See Enums.BlendMode.

Declaration
public static readonly nint BlendModeType
Field Value
Type Description
nint

BlobType

The fundamental type for VipsBlob.

Declaration
public static readonly nint BlobType
Field Value
Type Description
nint

GBoolType

The fundamental type corresponding to gboolean.

Declaration
public static readonly nint GBoolType
Field Value
Type Description
nint

GDoubleType

The fundamental type corresponding to gdouble.

Declaration
public static readonly nint GDoubleType
Field Value
Type Description
nint

GEnumType

The fundamental type from which all enumeration types are derived.

Declaration
public static readonly nint GEnumType
Field Value
Type Description
nint

GFlagsType

The fundamental type from which all flags types are derived.

Declaration
public static readonly nint GFlagsType
Field Value
Type Description
nint

GIntType

The fundamental type corresponding to gint.

Declaration
public static readonly nint GIntType
Field Value
Type Description
nint

GObjectType

The fundamental type for GObject.

Declaration
public static readonly nint GObjectType
Field Value
Type Description
nint

GStrType

The fundamental type corresponding to null-terminated C strings.

Declaration
public static readonly nint GStrType
Field Value
Type Description
nint

GUint64Type

The fundamental type corresponding to guint64.

Declaration
public static readonly nint GUint64Type
Field Value
Type Description
nint

ImageType

The fundamental type for VipsImage.

Declaration
public static readonly nint ImageType
Field Value
Type Description
nint

RefStrType

The fundamental type for VipsRefString.

Declaration
public static readonly nint RefStrType
Field Value
Type Description
nint

SourceType

The fundamental type for VipsSource. See Source.

Declaration
public static readonly nint SourceType
Field Value
Type Description
nint

TargetType

The fundamental type for VipsTarget. See Target.

Declaration
public static readonly nint TargetType
Field Value
Type Description
nint

Methods

Dispose()

Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.

Declaration
public void Dispose()

Dispose(bool)

Releases unmanaged and - optionally - managed resources.

Declaration
protected void Dispose(bool disposing)
Parameters
Type Name Description
bool disposing

true to release both managed and unmanaged resources; false to release only unmanaged resources.

~GValue()

Finalizes an instance of the GValue class.

Declaration
protected ~GValue()
Remarks

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.

Get()

Get the contents of a GValue.

Declaration
public object Get()
Returns
Type Description
object

The contents of this GValue.
Remarks

The contents of the GValue are read out as a C# type.

GetTypeOf()

Get the GType of this GValue.

Declaration
public nint GetTypeOf()
Returns
Type Description
nint

The GType of this GValue.

Set(object)

Set a GValue.

Declaration
public void Set(object value)
Parameters
Type Name Description
object value

Value to be set.
Remarks

The value is converted to the type of the GValue, if possible, and assigned.

SetType(nint)

Set the type of a GValue.

Declaration
public void SetType(nint gtype)
Parameters
Type Name Description
nint gtype

Type the GValue should hold values of.
Remarks

GValues have a set type, fixed at creation time. Use SetType to set the type of a GValue before assigning to it.

GTypes are 32 or 64-bit integers (depending on the platform). See TypeFind.

Implements