class: PropertyExpression

[12:7] extends: object

A GObject property value in a GtkExpression.

Members

• handleObj
• lib
• retainedCallbacks
• signalHandlerNames
• signalSetterHandlers

Methods

• PropertyExpression (expression = null, pspec = 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 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.

• 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 Expression.

  • @r A Expression object.

• get_expression ()

  Gets the expression specifying the object of a property expression.

• get_pspec ()

  Gets the GParamSpec specifying the property of a property expression.