Package ch.bailu.gtk.gtk

Class ExpressionWatch

java.lang.Object

ch.bailu.gtk.type.Type

ch.bailu.gtk.type.Pointer

ch.bailu.gtk.type.Record

ch.bailu.gtk.gtk.ExpressionWatch

All Implemented Interfaces:

PointerInterface

public class ExpressionWatch
extends Record

An opaque structure representing a watched `GtkExpression`.

The contents of `GtkExpressionWatch` should only be accessed through the
provided API.

https://docs.gtk.org/gtk4/struct.ExpressionWatch.html

Field Summary

Fields inherited from class ch.bailu.gtk.type.Pointer

NULL

Constructor Summary

Constructors

Constructor	Description
ExpressionWatch(PointerContainer pointer)

Method Summary

Modifier and Type	Method	Description
boolean	evaluate(Value value)	Evaluates the watched expression and on success stores the result in `value`.
static ClassHandler	getClassHandler()
static int	getInstanceSize()
static long	getParentTypeID()
static TypeSystem.TypeSize	getParentTypeSize()
static long	getTypeID()
static TypeSystem.TypeSize	getTypeSize()
ExpressionWatch	ref()	Acquires a reference on the given `GtkExpressionWatch`.
void	unref()	Releases a reference on the given `GtkExpressionWatch`.
void	unwatch()	Stops watching an expression.

Methods inherited from class ch.bailu.gtk.type.Record

destroy

Methods inherited from class ch.bailu.gtk.type.Pointer

asCPointer, cast, connectSignal, disconnectSignals, disconnectSignals, equals, hashCode, throwIfNull, throwNullPointerException, toString, unregisterCallbacks, unregisterCallbacks

Methods inherited from class ch.bailu.gtk.type.Type

asCPointer, asCPointer, asCPointerNotNull, asJnaPointer, asJnaPointer, asPointer, asPointer, cast, cast, throwIfNull

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface ch.bailu.gtk.type.PointerInterface

asCPointerNotNull, asJnaPointer, asPointer, isNotNull, isNull

Constructor Details

ExpressionWatch

public ExpressionWatch(PointerContainer pointer)

Method Details

getClassHandler

public static ClassHandler getClassHandler()

evaluate

public boolean evaluate(@Nonnull
 Value value)

Evaluates the watched expression and on success stores the result
in `value`.

This is equivalent to calling [method@Gtk.Expression.evaluate] with the
expression and this pointer originally used to create `watch`.

Parameters:

value - an empty `GValue` to be set

Returns:

`TRUE` if the expression could be evaluated and `value` was set

ref

public ExpressionWatch ref()

Acquires a reference on the given `GtkExpressionWatch`.

Returns:

the `GtkExpressionWatch` with an additional reference

unref

public void unref()

Releases a reference on the given `GtkExpressionWatch`.

If the reference was the last, the resources associated to `self` are
freed.

unwatch

public void unwatch()

Stops watching an expression.

See [method@Gtk.Expression.watch] for how the watch
was established.

getTypeID

public static long getTypeID()

getParentTypeID

public static long getParentTypeID()

getTypeSize

public static TypeSystem.TypeSize getTypeSize()

getParentTypeSize

public static TypeSystem.TypeSize getParentTypeSize()

getInstanceSize

public static int getInstanceSize()