API reference - Class QEventLoop

Notation used in Ruby API documentation

Module: QtCore

Description: Binding of QEventLoop

Class hierarchy: QEventLoop » QObject

Sub-classes: ProcessEventsFlag, QFlags_ProcessEventsFlag

Public constructors

new QEventLoopnew(QObject ptr parent = nullptr)Constructor QEventLoop::QEventLoop(QObject *parent)

Public methods

[const]QEventLoop ptr_const_castReturns a non-const reference to self.
void_createEnsures the C++ object is created
void_destroyExplicitly destroys the object
[const]bool_destroyed?Returns a value indicating whether the object was already destroyed
[const]bool_is_const_object?Returns a value indicating whether the reference is a const reference
void_manageMarks the object as managed by the script side.
void_unmanageMarks the object as no longer owned by the script side.
[signal]voiddestroyed(QObject ptr arg1)Signal declaration for QEventLoop::destroyed(QObject *)
voidemit_destroyed(QObject ptr arg1 = nullptr)Emitter for signal void QEventLoop::destroyed(QObject *)
voidemit_objectNameChanged(string objectName)Emitter for signal void QEventLoop::objectNameChanged(const QString &objectName)
boolevent(QEvent ptr event)Virtual method bool QEventLoop::event(QEvent *event)
booleventFilter(QObject ptr watched,
QEvent ptr event)
Virtual method bool QEventLoop::eventFilter(QObject *watched, QEvent *event)
intexec(QEventLoop_QFlags_ProcessEventsFlag flags = QEventLoop::AllEvents)Method int QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag> flags)
voidexit(int returnCode = 0)Method void QEventLoop::exit(int returnCode)
[const]boolisRunning?Method bool QEventLoop::isRunning()
[signal]voidobjectNameChanged(string objectName)Signal declaration for QEventLoop::objectNameChanged(const QString &objectName)
boolprocessEvents(QEventLoop_QFlags_ProcessEventsFlag flags = QEventLoop::AllEvents)Method bool QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag> flags)
voidprocessEvents(QEventLoop_QFlags_ProcessEventsFlag flags,
int maximumTime)
Method void QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag> flags, int maximumTime)
voidquitMethod void QEventLoop::quit()
voidwakeUpMethod void QEventLoop::wakeUp()

Public static methods and constants

[static,const]QEventLoop_ProcessEventsFlagAllEventsEnum constant QEventLoop::AllEvents
[static,const]QEventLoop_ProcessEventsFlagDialogExecEnum constant QEventLoop::DialogExec
[static,const]QEventLoop_ProcessEventsFlagEventLoopExecEnum constant QEventLoop::EventLoopExec
[static,const]QEventLoop_ProcessEventsFlagExcludeSocketNotifiersEnum constant QEventLoop::ExcludeSocketNotifiers
[static,const]QEventLoop_ProcessEventsFlagExcludeUserInputEventsEnum constant QEventLoop::ExcludeUserInputEvents
[static,const]QEventLoop_ProcessEventsFlagWaitForMoreEventsEnum constant QEventLoop::WaitForMoreEvents
[static,const]QEventLoop_ProcessEventsFlagX11ExcludeTimersEnum constant QEventLoop::X11ExcludeTimers
QMetaObjectstaticMetaObjectObtains the static MetaObject for this class.
stringtr(string s,
string c = nullptr,
int n = -1)
Static method QString QEventLoop::tr(const char *s, const char *c, int n)
stringtrUtf8(string s,
string c = nullptr,
int n = -1)
Static method QString QEventLoop::trUtf8(const char *s, const char *c, int n)

Protected methods (static, non-static and constructors)

voidchildEvent(QChildEvent ptr event)Virtual method void QEventLoop::childEvent(QChildEvent *event)
voidcustomEvent(QEvent ptr event)Virtual method void QEventLoop::customEvent(QEvent *event)
voiddisconnectNotify(const QMetaMethod signal)Virtual method void QEventLoop::disconnectNotify(const QMetaMethod &signal)
[const]boolisSignalConnected(const QMetaMethod signal)Method bool QEventLoop::isSignalConnected(const QMetaMethod &signal)
[const]intreceivers(string signal)Method int QEventLoop::receivers(const char *signal)
[const]QObject ptrsenderMethod QObject *QEventLoop::sender()
[const]intsenderSignalIndexMethod int QEventLoop::senderSignalIndex()
voidtimerEvent(QTimerEvent ptr event)Virtual method void QEventLoop::timerEvent(QTimerEvent *event)

Deprecated methods (protected, public, static, non-static and constructors)

voidcreateUse of this method is deprecated. Use _create instead
voiddestroyUse of this method is deprecated. Use _destroy instead
[const]boolis_const_object?Use of this method is deprecated. Use _is_const_object? instead

Detailed description

AllEvents

Signature: [static,const] QEventLoop_ProcessEventsFlag AllEvents

Description: Enum constant QEventLoop::AllEvents

Python specific notes:
The object exposes a readable attribute 'AllEvents'. This is the getter.

DialogExec

Signature: [static,const] QEventLoop_ProcessEventsFlag DialogExec

Description: Enum constant QEventLoop::DialogExec

Python specific notes:
The object exposes a readable attribute 'DialogExec'. This is the getter.

EventLoopExec

Signature: [static,const] QEventLoop_ProcessEventsFlag EventLoopExec

Description: Enum constant QEventLoop::EventLoopExec

Python specific notes:
The object exposes a readable attribute 'EventLoopExec'. This is the getter.

ExcludeSocketNotifiers

Signature: [static,const] QEventLoop_ProcessEventsFlag ExcludeSocketNotifiers

Description: Enum constant QEventLoop::ExcludeSocketNotifiers

Python specific notes:
The object exposes a readable attribute 'ExcludeSocketNotifiers'. This is the getter.

ExcludeUserInputEvents

Signature: [static,const] QEventLoop_ProcessEventsFlag ExcludeUserInputEvents

Description: Enum constant QEventLoop::ExcludeUserInputEvents

Python specific notes:
The object exposes a readable attribute 'ExcludeUserInputEvents'. This is the getter.

WaitForMoreEvents

Signature: [static,const] QEventLoop_ProcessEventsFlag WaitForMoreEvents

Description: Enum constant QEventLoop::WaitForMoreEvents

Python specific notes:
The object exposes a readable attribute 'WaitForMoreEvents'. This is the getter.

X11ExcludeTimers

Signature: [static,const] QEventLoop_ProcessEventsFlag X11ExcludeTimers

Description: Enum constant QEventLoop::X11ExcludeTimers

Python specific notes:
The object exposes a readable attribute 'X11ExcludeTimers'. This is the getter.

_const_cast

Signature: [const] QEventLoop ptr _const_cast

Description: Returns a non-const reference to self.

Basically, this method allows turning a const object reference to a non-const one. This method is provided as last resort to remove the constness from an object. Usually there is a good reason for a const object reference, so using this method may have undesired side effects.

This method has been introduced in version 0.29.6.

_create

Signature: void _create

Description: Ensures the C++ object is created

Use this method to ensure the C++ object is created, for example to ensure that resources are allocated. Usually C++ objects are created on demand and not necessarily when the script object is created.

_destroy

Signature: void _destroy

Description: Explicitly destroys the object

Explicitly destroys the object on C++ side if it was owned by the script interpreter. Subsequent access to this object will throw an exception. If the object is not owned by the script, this method will do nothing.

_destroyed?

Signature: [const] bool _destroyed?

Description: Returns a value indicating whether the object was already destroyed

This method returns true, if the object was destroyed, either explicitly or by the C++ side. The latter may happen, if the object is owned by a C++ object which got destroyed itself.

_is_const_object?

Signature: [const] bool _is_const_object?

Description: Returns a value indicating whether the reference is a const reference

This method returns true, if self is a const reference. In that case, only const methods may be called on self.

_manage

Signature: void _manage

Description: Marks the object as managed by the script side.

After calling this method on an object, the script side will be responsible for the management of the object. This method may be called if an object is returned from a C++ function and the object is known not to be owned by any C++ instance. If necessary, the script side may delete the object if the script's reference is no longer required.

Usually it's not required to call this method. It has been introduced in version 0.24.

_unmanage

Signature: void _unmanage

Description: Marks the object as no longer owned by the script side.

Calling this method will make this object no longer owned by the script's memory management. Instead, the object must be managed in some other way. Usually this method may be called if it is known that some C++ object holds and manages this object. Technically speaking, this method will turn the script's reference into a weak reference. After the script engine decides to delete the reference, the object itself will still exist. If the object is not managed otherwise, memory leaks will occur.

Usually it's not required to call this method. It has been introduced in version 0.24.

childEvent

Signature: void childEvent (QChildEvent ptr event)

Description: Virtual method void QEventLoop::childEvent(QChildEvent *event)

This method can be reimplemented in a derived class.

create

Signature: void create

Description: Ensures the C++ object is created

Use of this method is deprecated. Use _create instead

Use this method to ensure the C++ object is created, for example to ensure that resources are allocated. Usually C++ objects are created on demand and not necessarily when the script object is created.

customEvent

Signature: void customEvent (QEvent ptr event)

Description: Virtual method void QEventLoop::customEvent(QEvent *event)

This method can be reimplemented in a derived class.

destroy

Signature: void destroy

Description: Explicitly destroys the object

Use of this method is deprecated. Use _destroy instead

Explicitly destroys the object on C++ side if it was owned by the script interpreter. Subsequent access to this object will throw an exception. If the object is not owned by the script, this method will do nothing.

destroyed

Signature: [signal] void destroyed (QObject ptr arg1)

Description: Signal declaration for QEventLoop::destroyed(QObject *)

You can bind a procedure to this signal.

Python specific notes:
The object exposes a readable attribute 'destroyed'. This is the getter.
The object exposes a writable attribute 'destroyed'. This is the setter.

disconnectNotify

Signature: void disconnectNotify (const QMetaMethod signal)

Description: Virtual method void QEventLoop::disconnectNotify(const QMetaMethod &signal)

This method can be reimplemented in a derived class.

emit_destroyed

Signature: void emit_destroyed (QObject ptr arg1 = nullptr)

Description: Emitter for signal void QEventLoop::destroyed(QObject *)

Call this method to emit this signal.

emit_objectNameChanged

Signature: void emit_objectNameChanged (string objectName)

Description: Emitter for signal void QEventLoop::objectNameChanged(const QString &objectName)

Call this method to emit this signal.

event

Signature: bool event (QEvent ptr event)

Description: Virtual method bool QEventLoop::event(QEvent *event)

This method can be reimplemented in a derived class.

eventFilter

Signature: bool eventFilter (QObject ptr watched, QEvent ptr event)

Description: Virtual method bool QEventLoop::eventFilter(QObject *watched, QEvent *event)

This method can be reimplemented in a derived class.

exec

Signature: int exec (QEventLoop_QFlags_ProcessEventsFlag flags = QEventLoop::AllEvents)

Description: Method int QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag> flags)

Python specific notes:
This attribute is available as 'exec_' in Python.

exit

Signature: void exit (int returnCode = 0)

Description: Method void QEventLoop::exit(int returnCode)

isRunning?

Signature: [const] bool isRunning?

Description: Method bool QEventLoop::isRunning()

isSignalConnected

Signature: [const] bool isSignalConnected (const QMetaMethod signal)

Description: Method bool QEventLoop::isSignalConnected(const QMetaMethod &signal)

This method is protected and can only be called from inside a derived class.

is_const_object?

Signature: [const] bool is_const_object?

Description: Returns a value indicating whether the reference is a const reference

Use of this method is deprecated. Use _is_const_object? instead

This method returns true, if self is a const reference. In that case, only const methods may be called on self.

new

Signature: [static] new QEventLoop new (QObject ptr parent = nullptr)

Description: Constructor QEventLoop::QEventLoop(QObject *parent)

This method creates an object of class QEventLoop.

Python specific notes:
This method is the default initializer of the object.

objectNameChanged

Signature: [signal] void objectNameChanged (string objectName)

Description: Signal declaration for QEventLoop::objectNameChanged(const QString &objectName)

You can bind a procedure to this signal.

Python specific notes:
The object exposes a readable attribute 'objectNameChanged'. This is the getter.
The object exposes a writable attribute 'objectNameChanged'. This is the setter.

processEvents

(1) Signature: bool processEvents (QEventLoop_QFlags_ProcessEventsFlag flags = QEventLoop::AllEvents)

Description: Method bool QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag> flags)

(2) Signature: void processEvents (QEventLoop_QFlags_ProcessEventsFlag flags, int maximumTime)

Description: Method void QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag> flags, int maximumTime)

quit

Signature: void quit

Description: Method void QEventLoop::quit()

receivers

Signature: [const] int receivers (string signal)

Description: Method int QEventLoop::receivers(const char *signal)

This method is protected and can only be called from inside a derived class.

sender

Signature: [const] QObject ptr sender

Description: Method QObject *QEventLoop::sender()

This method is protected and can only be called from inside a derived class.

senderSignalIndex

Signature: [const] int senderSignalIndex

Description: Method int QEventLoop::senderSignalIndex()

This method is protected and can only be called from inside a derived class.

staticMetaObject

Signature: [static] QMetaObject staticMetaObject

Description: Obtains the static MetaObject for this class.

timerEvent

Signature: void timerEvent (QTimerEvent ptr event)

Description: Virtual method void QEventLoop::timerEvent(QTimerEvent *event)

This method can be reimplemented in a derived class.

tr

Signature: [static] string tr (string s, string c = nullptr, int n = -1)

Description: Static method QString QEventLoop::tr(const char *s, const char *c, int n)

This method is static and can be called without an instance.

trUtf8

Signature: [static] string trUtf8 (string s, string c = nullptr, int n = -1)

Description: Static method QString QEventLoop::trUtf8(const char *s, const char *c, int n)

This method is static and can be called without an instance.

wakeUp

Signature: void wakeUp

Description: Method void QEventLoop::wakeUp()