API reference - Class QMessageAuthenticationCode

Notation used in Ruby API documentation

Module: QtCore

Description: Binding of QMessageAuthenticationCode

Public constructors

new QMessageAuthenticationCodenew(const QCryptographicHash_Algorithm method,
bytes key = QByteArray())
Constructor QMessageAuthenticationCode::QMessageAuthenticationCode(QCryptographicHash::Algorithm method, const QByteArray &key)

Public methods

[const]QMessageAuthenticationCode 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.
voidaddData(string data,
int length)
Method void QMessageAuthenticationCode::addData(const char *data, int length)
voidaddData(bytes data)Method void QMessageAuthenticationCode::addData(const QByteArray &data)
booladdData(QIODevice ptr device)Method bool QMessageAuthenticationCode::addData(QIODevice *device)
voidresetMethod void QMessageAuthenticationCode::reset()
[const]bytesresultMethod QByteArray QMessageAuthenticationCode::result()
voidsetKey(bytes key)Method void QMessageAuthenticationCode::setKey(const QByteArray &key)

Public static methods and constants

byteshash(bytes message,
bytes key,
const QCryptographicHash_Algorithm method)
Static method QByteArray QMessageAuthenticationCode::hash(const QByteArray &message, const QByteArray &key, QCryptographicHash::Algorithm method)

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]booldestroyed?Use of this method is deprecated. Use _destroyed? instead
[const]boolis_const_object?Use of this method is deprecated. Use _is_const_object? instead

Detailed description

_const_cast

Signature: [const] QMessageAuthenticationCode 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.

addData

(1) Signature: void addData (string data, int length)

Description: Method void QMessageAuthenticationCode::addData(const char *data, int length)

(2) Signature: void addData (bytes data)

Description: Method void QMessageAuthenticationCode::addData(const QByteArray &data)

(3) Signature: bool addData (QIODevice ptr device)

Description: Method bool QMessageAuthenticationCode::addData(QIODevice *device)

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.

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: [const] bool destroyed?

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

Use of this method is deprecated. Use _destroyed? instead

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.

hash

Signature: [static] bytes hash (bytes message, bytes key, const QCryptographicHash_Algorithm method)

Description: Static method QByteArray QMessageAuthenticationCode::hash(const QByteArray &message, const QByteArray &key, QCryptographicHash::Algorithm method)

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

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 QMessageAuthenticationCode new (const QCryptographicHash_Algorithm method, bytes key = QByteArray())

Description: Constructor QMessageAuthenticationCode::QMessageAuthenticationCode(QCryptographicHash::Algorithm method, const QByteArray &key)

This method creates an object of class QMessageAuthenticationCode.

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

reset

Signature: void reset

Description: Method void QMessageAuthenticationCode::reset()

result

Signature: [const] bytes result

Description: Method QByteArray QMessageAuthenticationCode::result()

setKey

Signature: void setKey (bytes key)

Description: Method void QMessageAuthenticationCode::setKey(const QByteArray &key)