class: GtkPropertyExpression

[12:7] extends: object

A GObject property value in a GtkExpression.

Members

handleObj
lib
retainedCallbacks
signalHandlerNames
signalSetterHandlers

Methods

GtkPropertyExpression (this_type = null, expression = null, property_name = null)

Creates an expression that looks up a property. The object to use is found by evaluating the expression, or using the this argument when expression is NULL. If the resulting object conforms to this_type, its property named property_name will be queried. Otherwise, this expression's evaluation will fail. The given this_type must have a property with property_name.
- @p this_type is The type to expect for the this type.
- @p expression is Expression to evaluate to get the object to query or NULL to query the this object.
- @p property_name is name of the property.
toNativeHandle (Source)

Normalizes a constructor argument into a raw pointer carrier. Accepts a raw NativeHandle, a raw NativeBuffer returned from fn.call(...), another generated wrapper exposing handle(), or null. Returns null when the argument carries no pointer.
- @p Source is the raw handle, raw buffer, wrapper, or null.
- @r A raw pointer carrier or null when no pointer is present.
getLib ()

Returns the opened native library for this generated wrapper.
- @r The opened native library.
handle ()

Returns the wrapped NativeHandle.
- @r The wrapped NativeHandle.
isNull ()

Returns true when the wrapped handle is null.
- @r A bool.
describe ()

Returns a small string for debugging generated wrappers.
- @r A string.
asExpression ()

Wraps this handle as GtkExpression.
- @r A GtkExpression object.
get_expression ()

Gets the expression specifying the object of a property expression.
- @r the object expression.
get_pspec ()

Gets the GParamSpec specifying the property of a property expression.
- @r the GParamSpec for the property.

class: GtkPropertyExpressionCtors

[140:14] static extends: object

Alternate constructors for GtkPropertyExpression. Usage: GtkPropertyExpressionCtors.<name>(...). The primary constructor lives directly on GtkPropertyExpression.

Methods

newForPspec (object expression, object pspec)

Creates an expression that looks up a property. The object to use is found by evaluating the expression, or using the this argument when expression is NULL. If the resulting object conforms to this_type, its property specified by pspec will be queried. Otherwise, this expression's evaluation will fail.
- @p expression is Expression to evaluate to get the object to query or NULL to query the this object.
- @p pspec is the GParamSpec for the property to query.
- @r A new GtkPropertyExpression.