Struct gtk4::EventControllerKey [−][src]
pub struct EventControllerKey(_);
Expand description
EventControllerKey
is an event controller that provides access
to key events.
Implements
Implementations
Creates a new builder-pattern struct instance to construct EventControllerKey
objects.
This method returns an instance of EventControllerKeyBuilder
which can be used to create EventControllerKey
objects.
Gets the key group of the current event of this self
.
See Gdk::
KeyEvent::get_layout()``.
Returns
the key group
Emitted whenever the input method context filters away
a keypress and prevents the controller
receiving it.
See set_im_context()
and
IMContextExtManual::filter_keypress()
.
pub fn connect_modifiers<F: Fn(&Self, ModifierType) -> Inhibit + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_modifiers<F: Fn(&Self, ModifierType) -> Inhibit + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_key_pressed<F: Fn(&EventControllerKey, Key, u32, ModifierType) -> Inhibit + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_key_pressed<F: Fn(&EventControllerKey, Key, u32, ModifierType) -> Inhibit + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_key_released<F: Fn(&EventControllerKey, Key, u32, ModifierType) + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_key_released<F: Fn(&EventControllerKey, Key, u32, ModifierType) + 'static>(
&self,
f: F
) -> SignalHandlerId
Emitted whenever a key is released.
keyval
the released key.
keycode
the raw code of the released key.
state
the bitmask, representing the state of modifier keys and pointer buttons. See gdk::ModifierType
.
Trait Implementations
type Parent = EventController
This method returns an ordering between self
and other
values if one exists. Read more
This method tests less than (for self
and other
) and is used by the <
operator. Read more
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
Returns the type identifier of Self
.
Auto Trait Implementations
impl RefUnwindSafe for EventControllerKey
impl !Send for EventControllerKey
impl !Sync for EventControllerKey
impl Unpin for EventControllerKey
impl UnwindSafe for EventControllerKey
Blanket Implementations
Mutably borrows from an owned value. Read more
Upcasts an object to a superclass or interface T
. Read more
Upcasts an object to a reference of its superclass or interface T
. Read more
Tries to downcast to a subclass or interface implementor T
. Read more
Tries to downcast to a reference of its subclass or interface implementor T
. Read more
Tries to cast to an object of type T
. This handles upcasting, downcasting
and casting between interface and interface implementors. All checks are performed at
runtime, while downcast
and upcast
will do many checks at compile-time already. Read more
Tries to cast to reference to an object of type T
. This handles upcasting, downcasting
and casting between interface and interface implementors. All checks are performed at
runtime, while downcast
and upcast
will do many checks at compile-time already. Read more
Casts to T
unconditionally. Read more
Casts to &T
unconditionally. Read more
Returns true
if the object is an instance of (can be cast to) T
.
pub fn set_property<'a, N, V>(
&self,
property_name: N,
value: V
) -> Result<(), BoolError> where
N: Into<&'a str>,
V: ToValue,
pub fn set_property_from_value<'a, N>(
&self,
property_name: N,
value: &Value
) -> Result<(), BoolError> where
N: Into<&'a str>,
pub fn set_properties_from_value(
&self,
property_values: &[(&str, Value)]
) -> Result<(), BoolError>
pub fn has_property<'a, N>(&self, property_name: N, type_: Option<Type>) -> bool where
N: Into<&'a str>,
pub fn find_property<'a, N>(&self, property_name: N) -> Option<ParamSpec> where
N: Into<&'a str>,
Safety Read more
Safety Read more
Safety Read more
Safety Read more
pub fn connect<'a, N, F>(
&self,
signal_name: N,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
N: Into<&'a str>,
F: 'static + Fn(&[Value]) -> Option<Value> + Send + Sync,
Same as connect
but takes a SignalId
instead of a signal name.
pub fn connect_local<'a, N, F>(
&self,
signal_name: N,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
N: Into<&'a str>,
F: 'static + Fn(&[Value]) -> Option<Value>,
Same as connect_local
but takes a SignalId
instead of a signal name.
pub unsafe fn connect_unsafe<'a, N, F>(
&self,
signal_name: N,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
N: Into<&'a str>,
F: Fn(&[Value]) -> Option<Value>,
Same as connect_unsafe
but takes a SignalId
instead of a signal name.
Emit signal by signal id.
Same as emit
but takes Value
for the arguments.
Emit signal by its name.
Same as emit_by_name
but takes Value
for the arguments.
Emit signal with details by signal id.
Same as emit_with_details
but takes Value
for the arguments.
pub fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId where
F: 'static + Fn(&T, &ParamSpec) + Send + Sync,
pub fn connect_notify_local<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerId where
F: 'static + Fn(&T, &ParamSpec),
pub unsafe fn connect_notify_unsafe<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerId where
F: Fn(&T, &ParamSpec),
pub fn bind_property<'a, O, N, M>(
&'a self,
source_property: N,
target: &'a O,
target_property: M
) -> BindingBuilder<'a> where
O: ObjectType,
N: Into<&'a str>,
M: Into<&'a str>,
Returns a SendValue
clone of self
.