class: GtkCClosureExpression

[12:7] extends: object

A variant of GtkClosureExpression using a C closure.

Members

handleObj
lib
retainedCallbacks
signalHandlerNames
signalSetterHandlers

Methods

GtkCClosureExpression (value_type = null, marshal = null, n_params = null, params = null, callback_func = null, user_data = null, user_destroy = null)

Creates a GtkExpression that calls callback_func when it is evaluated. This function is a variant of [ctor@Gtk.ClosureExpression.new] that creates a GClosure by calling g_cclosure_new() with the given callback_func, user_data and user_destroy.
- @p value_type is the type of the value that this expression evaluates to.
- @p marshal is marshaller used for creating a closure.
- @p n_params is the number of params needed for evaluating @closure.
- @p params is expressions for each parameter.
- @p callback_func is callback used for creating a closure.
- @p user_data is user data used for creating a closure.
- @p user_destroy is destroy notify for @user_data.
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.