gdk4_wayland

Struct WaylandToplevel

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pub struct WaylandToplevel { /* private fields */ }
Expand description

The Wayland implementation of gdk::Toplevel.

Beyond the gdk::Toplevel API, the Wayland implementation has API to set up cross-process parent-child relationships between surfaces with export_handle() and set_transient_for_exported().

§Implements

[WaylandSurfaceExt][trait@crate::prelude::WaylandSurfaceExt], gdk::prelude::SurfaceExt, gdk::prelude::ToplevelExt, WaylandSurfaceExtManual

GLib type: GObject with reference counted clone semantics.

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impl WaylandToplevel

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pub fn drop_exported_handle(&self, handle: &str)

Available on crate feature v4_12 only.

Destroy a handle that was obtained with gdk_wayland_toplevel_export_handle().

Note that this API depends on an unstable Wayland protocol, and thus may require changes in the future.

§handle

the handle to drop

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pub fn set_application_id(&self, application_id: &str)

Sets the application id on a gdk::Toplevel.

§application_id

the application id for the @self

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pub fn set_transient_for_exported(&self, parent_handle_str: &str) -> bool

Marks @self as transient for the surface to which the given @parent_handle_str refers.

Typically, the handle will originate from a export_handle() call in another process.

Note that this API depends on an unstable Wayland protocol, and thus may require changes in the future.

§parent_handle_str

an exported handle for a surface

§Returns

true if the surface has been marked as transient, false if an error occurred.

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pub fn unexport_handle(&self)

👎Deprecated: Since 4.12

Destroys the handle that was obtained with gdk_wayland_toplevel_export_handle().

It is an error to call this function on a surface that does not have a handle.

Since 4.12, this function does nothing. Use drop_exported_handle() instead to drop a handle that was obtained with export_handle().

Note that this API depends on an unstable Wayland protocol, and thus may require changes in the future.

§Deprecated since 4.12

Use drop_exported_handle() instead, this function does nothing

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impl WaylandToplevel

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pub fn export_handle<P: Fn(&WaylandToplevel, Result<&str, BoolError>) + 'static>( &self, callback: P, ) -> bool

Asynchronously obtains a handle for a surface that can be passed to other processes.

When the handle has been obtained, @callback will be called.

It is an error to call this function on a surface that is already exported.

When the handle is no longer needed, unexport_handle() should be called to clean up resources.

The main purpose for obtaining a handle is to mark a surface from another surface as transient for this one, see set_transient_for_exported().

Before 4.12, this API could not safely be used multiple times, since there was no reference counting for handles. Starting with 4.12, every call to this function obtains a new handle, and every call to drop_exported_handle() drops just the handle that it is given.

Note that this API depends on an unstable Wayland protocol, and thus may require changes in the future.

§callback

callback to call with the handle

§Returns

true if the handle has been requested, false if an error occurred.

Trait Implementations§

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impl Clone for WaylandToplevel

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fn clone(&self) -> Self

Makes a clone of this shared reference.

This increments the strong reference count of the object. Dropping the object will decrement it again.

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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for WaylandToplevel

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl HasParamSpec for WaylandToplevel

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type ParamSpec = ParamSpecObject

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type SetValue = WaylandToplevel

Preferred value to be used as setter for the associated ParamSpec.
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type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, WaylandToplevel>

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fn param_spec_builder() -> Self::BuilderFn

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impl Hash for WaylandToplevel

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fn hash<H>(&self, state: &mut H)
where H: Hasher,

Hashes the memory address of this object.

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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for WaylandToplevel

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fn cmp(&self, other: &Self) -> Ordering

Comparison for two GObjects.

Compares the memory addresses of the provided objects.

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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl ParentClassIs for WaylandToplevel

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impl<OT: ObjectType> PartialEq<OT> for WaylandToplevel

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fn eq(&self, other: &OT) -> bool

Equality for two GObjects.

Two GObjects are equal if their memory addresses are equal.

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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<OT: ObjectType> PartialOrd<OT> for WaylandToplevel

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fn partial_cmp(&self, other: &OT) -> Option<Ordering>

Partial comparison for two GObjects.

Compares the memory addresses of the provided objects.

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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl StaticType for WaylandToplevel

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fn static_type() -> Type

Returns the type identifier of Self.
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impl Eq for WaylandToplevel

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impl IsA<Surface> for WaylandToplevel

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impl IsA<Toplevel> for WaylandToplevel

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impl IsA<WaylandSurface> for WaylandToplevel

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🔬This is a nightly-only experimental API. (clone_to_uninit)
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unsafe fn from_glib_full_num_as_vec(ptr: *mut GPtrArray, num: usize) -> Vec<T>

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impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GSList> for T

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unsafe fn from_glib_none_num_as_vec(ptr: *mut GSList, num: usize) -> Vec<T>

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unsafe fn from_glib_container_num_as_vec(ptr: *mut GSList, num: usize) -> Vec<T>

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unsafe fn from_glib_full_num_as_vec(ptr: *mut GSList, num: usize) -> Vec<T>

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unsafe fn from_glib_full_as_vec(_: *const GList) -> Vec<T>

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unsafe fn from_glib_full_as_vec(_: *const GPtrArray) -> Vec<T>

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unsafe fn from_glib_none_as_vec(ptr: *const GSList) -> Vec<T>

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unsafe fn from_glib_container_as_vec(_: *const GSList) -> Vec<T>

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unsafe fn from_glib_full_as_vec(_: *const GSList) -> Vec<T>

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unsafe fn from_glib_container_as_vec(ptr: *mut GList) -> Vec<T>

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unsafe fn from_glib_full_as_vec(ptr: *mut GList) -> Vec<T>

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unsafe fn from_glib_full_as_vec(ptr: *mut GPtrArray) -> Vec<T>

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unsafe fn from_glib_none_as_vec(ptr: *mut GSList) -> Vec<T>

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unsafe fn from_glib_container_as_vec(ptr: *mut GSList) -> Vec<T>

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unsafe fn from_glib_full_as_vec(ptr: *mut GSList) -> Vec<T>

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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where T: Into<Value>,

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impl<T> ObjectExt for T
where T: ObjectType,

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fn is<U>(&self) -> bool
where U: StaticType,

Returns true if the object is an instance of (can be cast to) T.
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fn type_(&self) -> Type

Returns the type of the object.
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fn object_class(&self) -> &Class<Object>

Returns the ObjectClass of the object. Read more
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where T: IsClass,

Returns the class of the object.
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where U: IsClass,

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where U: IsInterface,

Returns the interface T of the object. Read more
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fn set_property(&self, property_name: &str, value: impl Into<Value>)

Sets the property property_name of the object to value value. Read more
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fn set_property_from_value(&self, property_name: &str, value: &Value)

Sets the property property_name of the object to value value. Read more
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fn set_properties(&self, property_values: &[(&str, &dyn ToValue)])

Sets multiple properties of the object at once. Read more
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fn set_properties_from_value(&self, property_values: &[(&str, Value)])

Sets multiple properties of the object at once. Read more
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fn property<V>(&self, property_name: &str) -> V
where V: for<'b> FromValue<'b> + 'static,

Gets the property property_name of the object and cast it to the type V. Read more
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fn property_value(&self, property_name: &str) -> Value

Gets the property property_name of the object. Read more
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fn has_property(&self, property_name: &str, type_: Option<Type>) -> bool

Check if the object has a property property_name of the given type_. Read more
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fn property_type(&self, property_name: &str) -> Option<Type>

Get the type of the property property_name of this object. Read more
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fn find_property(&self, property_name: &str) -> Option<ParamSpec>

Get the ParamSpec of the property property_name of this object.
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fn list_properties(&self) -> PtrSlice<ParamSpec>

Return all ParamSpec of the properties of this object.
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fn freeze_notify(&self) -> PropertyNotificationFreezeGuard

Freeze all property notifications until the return guard object is dropped. Read more
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unsafe fn set_qdata<QD>(&self, key: Quark, value: QD)
where QD: 'static,

Set arbitrary data on this object with the given key. Read more
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unsafe fn qdata<QD>(&self, key: Quark) -> Option<NonNull<QD>>
where QD: 'static,

Return previously set arbitrary data of this object with the given key. Read more
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unsafe fn steal_qdata<QD>(&self, key: Quark) -> Option<QD>
where QD: 'static,

Retrieve previously set arbitrary data of this object with the given key. Read more
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unsafe fn set_data<QD>(&self, key: &str, value: QD)
where QD: 'static,

Set arbitrary data on this object with the given key. Read more
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unsafe fn data<QD>(&self, key: &str) -> Option<NonNull<QD>>
where QD: 'static,

Return previously set arbitrary data of this object with the given key. Read more
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unsafe fn steal_data<QD>(&self, key: &str) -> Option<QD>
where QD: 'static,

Retrieve previously set arbitrary data of this object with the given key. Read more
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fn block_signal(&self, handler_id: &SignalHandlerId)

Block a given signal handler. Read more
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fn unblock_signal(&self, handler_id: &SignalHandlerId)

Unblock a given signal handler.
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fn stop_signal_emission(&self, signal_id: SignalId, detail: Option<Quark>)

Stop emission of the currently emitted signal.
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fn stop_signal_emission_by_name(&self, signal_name: &str)

Stop emission of the currently emitted signal by the (possibly detailed) signal name.
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fn connect<F>( &self, signal_name: &str, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,

Connect to the signal signal_name on this object. Read more
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fn connect_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,

Connect to the signal signal_id on this object. Read more
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fn connect_local<F>( &self, signal_name: &str, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value> + 'static,

Connect to the signal signal_name on this object. Read more
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fn connect_local_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value> + 'static,

Connect to the signal signal_id on this object. Read more
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unsafe fn connect_unsafe<F>( &self, signal_name: &str, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value>,

Connect to the signal signal_name on this object. Read more
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unsafe fn connect_unsafe_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value>,

Connect to the signal signal_id on this object. Read more
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fn connect_closure( &self, signal_name: &str, after: bool, closure: RustClosure, ) -> SignalHandlerId

Connect a closure to the signal signal_name on this object. Read more
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fn connect_closure_id( &self, signal_id: SignalId, details: Option<Quark>, after: bool, closure: RustClosure, ) -> SignalHandlerId

Connect a closure to the signal signal_id on this object. Read more
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fn watch_closure(&self, closure: &impl AsRef<Closure>)

Limits the lifetime of closure to the lifetime of the object. When the object’s reference count drops to zero, the closure will be invalidated. An invalidated closure will ignore any calls to invoke_with_values, or invoke when using Rust closures.
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fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> R

Emit signal by signal id. Read more
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fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>

Same as Self::emit but takes Value for the arguments.
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fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> R

Emit signal by its name. Read more
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fn emit_by_name_with_values( &self, signal_name: &str, args: &[Value], ) -> Option<Value>

Emit signal by its name. Read more
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fn emit_by_name_with_details<R>( &self, signal_name: &str, details: Quark, args: &[&dyn ToValue], ) -> R

Emit signal by its name with details. Read more
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fn emit_by_name_with_details_and_values( &self, signal_name: &str, details: Quark, args: &[Value], ) -> Option<Value>

Emit signal by its name with details. Read more
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fn emit_with_details<R>( &self, signal_id: SignalId, details: Quark, args: &[&dyn ToValue], ) -> R

Emit signal by signal id with details. Read more
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fn emit_with_details_and_values( &self, signal_id: SignalId, details: Quark, args: &[Value], ) -> Option<Value>

Emit signal by signal id with details. Read more
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fn disconnect(&self, handler_id: SignalHandlerId)

Disconnect a previously connected signal handler.
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fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId
where F: Fn(&T, &ParamSpec) + Send + Sync + 'static,

Connect to the notify signal of the object. Read more
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fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId
where F: Fn(&T, &ParamSpec) + 'static,

Connect to the notify signal of the object. Read more
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unsafe fn connect_notify_unsafe<F>( &self, name: Option<&str>, f: F, ) -> SignalHandlerId
where F: Fn(&T, &ParamSpec),

Connect to the notify signal of the object. Read more
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fn notify(&self, property_name: &str)

Notify that the given property has changed its value. Read more
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fn notify_by_pspec(&self, pspec: &ParamSpec)

Notify that the given property has changed its value. Read more
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fn downgrade(&self) -> WeakRef<T>

Downgrade this object to a weak reference.
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fn add_weak_ref_notify<F>(&self, f: F) -> WeakRefNotify<T>
where F: FnOnce() + Send + 'static,

Add a callback to be notified when the Object is disposed.
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fn add_weak_ref_notify_local<F>(&self, f: F) -> WeakRefNotify<T>
where F: FnOnce() + 'static,

Add a callback to be notified when the Object is disposed. Read more
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fn bind_property<'a, 'f, 't, O>( &'a self, source_property: &'a str, target: &'a O, target_property: &'a str, ) -> BindingBuilder<'a, 'f, 't>
where O: ObjectType,

Bind property source_property on this object to the target_property on the target object. Read more
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fn ref_count(&self) -> u32

Returns the strong reference count of this object.
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unsafe fn run_dispose(&self)

Runs the dispose mechanism of the object. Read more
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impl<T> Property for T
where T: HasParamSpec,

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type Value = T

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impl<T> PropertyGet for T
where T: HasParamSpec,

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type Value = T

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fn get<R, F>(&self, f: F) -> R
where F: Fn(&<T as PropertyGet>::Value) -> R,

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impl<T> StaticTypeExt for T
where T: StaticType,

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fn ensure_type()

Ensures that the type has been registered with the type system.
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impl<O> SurfaceExt for O
where O: IsA<Surface>,

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fn beep(&self)

Emits a short beep associated to @self. Read more
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fn create_cairo_context(&self) -> CairoContext

Creates a new CairoContext for rendering on @self. Read more
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fn create_gl_context(&self) -> Result<GLContext, Error>

Creates a new GLContext for the Surface. Read more
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fn create_vulkan_context(&self) -> Result<VulkanContext, Error>

👎Deprecated: Since 4.14
Sets an error and returns None. Read more
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fn destroy(&self)

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fn cursor(&self) -> Option<Cursor>

Retrieves a Cursor pointer for the cursor currently set on the Surface. Read more
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fn device_cursor(&self, device: &impl IsA<Device>) -> Option<Cursor>

Retrieves a Cursor pointer for the @device currently set on the specified Surface. Read more
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fn device_position( &self, device: &impl IsA<Device>, ) -> Option<(f64, f64, ModifierType)>

Obtains the current device position and modifier state. Read more
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fn display(&self) -> Display

Gets the Display associated with a Surface. Read more
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fn frame_clock(&self) -> FrameClock

Gets the frame clock for the surface. Read more
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fn height(&self) -> i32

Returns the height of the given @self. Read more
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fn is_mapped(&self) -> bool

Checks whether the surface has been mapped. Read more
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fn scale(&self) -> f64

Available on crate feature v4_12 only.
Returns the internal scale that maps from surface coordinates to the actual device pixels. Read more
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fn scale_factor(&self) -> i32

Returns the internal scale factor that maps from surface coordinates to the actual device pixels. Read more
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fn width(&self) -> i32

Returns the width of the given @self. Read more
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fn hide(&self)

Hide the surface. Read more
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fn is_destroyed(&self) -> bool

Check to see if a surface is destroyed. Read more
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fn queue_render(&self)

Forces a render signal emission for @self to be scheduled. Read more
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fn request_layout(&self)

Request a layout phase from the surface’s frame clock. Read more
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fn set_cursor(&self, cursor: Option<&Cursor>)

Sets the default mouse pointer for a Surface. Read more
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fn set_device_cursor(&self, device: &impl IsA<Device>, cursor: &Cursor)

Sets a specific Cursor for a given device when it gets inside @self. Read more
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fn set_input_region(&self, region: &Region)

Apply the region to the surface for the purpose of event handling. Read more
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fn set_opaque_region(&self, region: Option<&Region>)

Marks a region of the Surface as opaque. Read more
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fn connect_enter_monitor<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self, &Monitor) + 'static,

Emitted when @surface starts being present on the monitor. Read more
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fn connect_event<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self, &Event) -> bool + 'static,

Emitted when GDK receives an input event for @surface. Read more
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fn connect_layout<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self, i32, i32) + 'static,

Emitted when the size of @surface is changed, or when relayout should be performed. Read more
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fn connect_leave_monitor<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self, &Monitor) + 'static,

Emitted when @surface stops being present on the monitor. Read more
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fn connect_render<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self, &Region) -> bool + 'static,

Emitted when part of the surface needs to be redrawn. Read more
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fn connect_cursor_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + 'static,

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fn connect_height_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + 'static,

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fn connect_mapped_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + 'static,

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fn connect_scale_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + 'static,

Available on crate feature v4_12 only.
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fn connect_scale_factor_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + 'static,

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fn connect_width_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + 'static,

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impl<O> SurfaceExtManual for O
where O: IsA<Surface>,

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fn create_similar_surface( &self, content: Content, width: i32, height: i32, ) -> Surface

Create a new Cairo surface that is as compatible as possible with the given @self. Read more
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fn translate_coordinates(&self, to: &Surface, x: f64, y: f64) -> bool

Translates coordinates between two surfaces. Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<O> ToplevelExt for O
where O: IsA<Toplevel>,

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fn begin_move( &self, device: &impl IsA<Device>, button: i32, x: f64, y: f64, timestamp: u32, )

Begins an interactive move operation. Read more
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fn begin_resize( &self, edge: SurfaceEdge, device: Option<&impl IsA<Device>>, button: i32, x: f64, y: f64, timestamp: u32, )

Begins an interactive resize operation. Read more
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fn focus(&self, timestamp: u32)

Sets keyboard focus to @surface. Read more
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fn state(&self) -> ToplevelState

Gets the bitwise or of the currently active surface state flags, from the ToplevelState enumeration. Read more
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fn inhibit_system_shortcuts(&self, event: Option<impl AsRef<Event>>)

Requests that the @self inhibit the system shortcuts. Read more
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fn lower(&self) -> bool

Asks to lower the @self below other windows. Read more
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fn minimize(&self) -> bool

Asks to minimize the @self. Read more
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fn present(&self, layout: &ToplevelLayout)

Present @self after having processed the ToplevelLayout rules. Read more
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fn restore_system_shortcuts(&self)

Restore default system keyboard shortcuts which were previously inhibited. Read more
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fn set_decorated(&self, decorated: bool)

Sets the toplevel to be decorated. Read more
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fn set_deletable(&self, deletable: bool)

Sets the toplevel to be deletable. Read more
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fn set_icon_list(&self, surfaces: &[Texture])

Sets a list of icons for the surface. Read more
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fn set_modal(&self, modal: bool)

Sets the toplevel to be modal. Read more
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fn set_startup_id(&self, startup_id: &str)

Sets the startup notification ID. Read more
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fn set_title(&self, title: &str)

Sets the title of a toplevel surface. Read more
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fn set_transient_for(&self, parent: &impl IsA<Surface>)

Sets a transient-for parent. Read more
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fn show_window_menu(&self, event: impl AsRef<Event>) -> bool

Asks the windowing system to show the window menu. Read more
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fn supports_edge_constraints(&self) -> bool

Returns whether the desktop environment supports tiled window states. Read more
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fn titlebar_gesture(&self, gesture: TitlebarGesture) -> bool

Available on crate feature v4_4 only.
Performs a title bar gesture. Read more
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fn is_decorated(&self) -> bool

Whether the window manager should add decorations.
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fn is_deletable(&self) -> bool

Whether the window manager should allow to close the surface.
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fn fullscreen_mode(&self) -> FullscreenMode

The fullscreen mode of the surface.
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fn set_fullscreen_mode(&self, fullscreen_mode: FullscreenMode)

The fullscreen mode of the surface.
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fn is_modal(&self) -> bool

Whether the surface is modal.
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fn is_shortcuts_inhibited(&self) -> bool

Whether the surface should inhibit keyboard shortcuts.
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fn startup_id(&self) -> Option<GString>

The startup ID of the surface. Read more
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fn title(&self) -> Option<GString>

The title of the surface.
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fn transient_for(&self) -> Option<Surface>

The transient parent of the surface.
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fn connect_decorated_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + 'static,

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fn connect_deletable_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + 'static,

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fn connect_fullscreen_mode_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + 'static,

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fn connect_icon_list_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + 'static,

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fn connect_modal_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + 'static,

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fn connect_shortcuts_inhibited_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + 'static,

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fn connect_startup_id_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + 'static,

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fn connect_state_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + 'static,

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fn connect_title_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + 'static,

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fn connect_transient_for_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + 'static,

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impl<O> ToplevelExtManual for O
where O: IsA<Toplevel>,

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fn connect_compute_size<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Toplevel, &mut ToplevelSize) + 'static,

Emitted when the size for the surface needs to be computed, when it is present. Read more
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impl<T> TransparentType for T

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T> TryFromClosureReturnValue for T
where T: for<'a> FromValue<'a> + StaticType + 'static,

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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> Upcast<T> for T

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fn upcast(&self) -> Option<&T>

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impl<O> WaylandSurfaceExtManual for O
where O: IsA<WaylandSurface>,

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fn wl_surface(&self) -> Option<WlSurface>

Available on crate feature wayland_crate only.
Returns the Wayland wl_surface of a gdk::Surface. Read more
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impl<'a, T, C, E> FromValueOptional<'a> for T
where T: FromValue<'a, Checker = C>, C: ValueTypeChecker<Error = ValueTypeMismatchOrNoneError<E>>, E: Error + Send + 'static,

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impl<Super, Sub> MayDowncastTo<Sub> for Super
where Super: IsA<Super>, Sub: IsA<Super>,