Class GObject

Manage GObject lifetime.

Inheritance

object

CriticalFinalizerObject

SafeHandle

GObject

VipsObject

Implements

IDisposable

Inherited Members

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 GObject : SafeHandle, IDisposable

Properties

IsInvalid

Gets a value indicating whether the handle is invalid.

Declaration

public override bool IsInvalid { get; }

Property Value

Type	Description
bool	true if the handle is not valid; otherwise, false.

Overrides

SafeHandle.IsInvalid

Methods

ReleaseHandle()

Decreases the reference count of object. When its reference count drops to 0, the object is finalized (i.e. its memory is freed).

Declaration

protected override bool ReleaseHandle()

Returns

Type	Description
bool	true if the handle is released successfully; otherwise, in the event of a catastrophic failure, false.

Overrides

SafeHandle.ReleaseHandle()

SignalConnect<T>(string, T, nint)

Connects a callback function (callback) to a signal on this object.

Declaration

public ulong SignalConnect<T>(string detailedSignal, T callback, nint data = 0) where T : notnull

Parameters

Type	Name	Description
string	detailedSignal	A string of the form "signal-name::detail".
T	callback	The callback to connect.
nint	data	Data to pass to handler calls.

Returns

Type	Description
ulong	The handler id.

Type Parameters

Name	Description
T	The type of the callback to connect.

Remarks

The callback will be triggered every time this signal is issued on this instance.

Exceptions

Type	Condition
ArgumentException	If it failed to connect the signal.

SignalHandlerDisconnect(ulong)

Disconnects a handler from this object.

Declaration

public void SignalHandlerDisconnect(ulong handlerId)

Parameters

Type	Name	Description
ulong	handlerId	Handler id of the handler to be disconnected.

Remarks

If the handlerId is 0 then this function does nothing.

SignalHandlersDisconnectByData(nint)

Disconnects all handlers from this object that match data.

Declaration

public uint SignalHandlersDisconnectByData(nint data)

Parameters

Type	Name	Description
nint	data	The data of the handlers.

Returns

Type	Description
uint	The number of handlers that matched.

SignalHandlersDisconnectByFunc<T>(T, nint)

Disconnects all handlers from this object that match func and data.

Declaration

public uint SignalHandlersDisconnectByFunc<T>(T func, nint data = 0) where T : notnull

Parameters

Type	Name	Description
T	func	The func of the handlers.
nint	data	The data of the handlers.

Returns

Type	Description
uint	The number of handlers that matched.

Type Parameters

Name	Description
T	The type of the func.

Implements

IDisposable