|qmake:||QT += opcua|
|QOpcUaProvider(QObject *parent = nullptr)|
|QOpcUaClient *||createClient(const QString &backend, const QVariantMap &backendProperties = ...)|
- 31 public functions inherited from QObject
- 9 static public members inherited from QObject
Additional Inherited Members
- 1 property inherited from QObject
- 1 public slot inherited from QObject
- 2 signals inherited from QObject
- 9 protected functions inherited from QObject
For the available plugins and their capabilities please refer to the introduction.
This code creates a client using the first available backend:
Member Function Documentation
QOpcUaProvider::QOpcUaProvider(QObject *parent = nullptr)
Creates a new OPC UA provider with a given parent.
Destroys the instance of QOpcUaProvider. The destructor is virtual.
[static] QStringList QOpcUaProvider::availableBackends()
Returns a QStringList of available plugins.
QOpcUaClient *QOpcUaProvider::createClient(const QString &backend, const QVariantMap &backendProperties = ...)
Returns a pointer to a QOpcUaClient object by loading the selected backend as a plugin and creating a client object. If the plugin loading fails,
nullptr is returned instead.
The user is responsible for deleting the returned QOpcUaClient object when it is no longer needed.
The optional argument
backendProperties can be used to pass custom backend specific settings as key value pairs. Those settings are specific to the backend being instantiated.
Available settings are
|disableEncryptedPasswordCheck||Unified Automation||By default, the backend refuses to connect to endpoints without encryption to avoid sending passwords in clear text. This parameter allows to disable this feature.|
Note: This function can be invoked via the meta-object system and from QML. See Q_INVOKABLE.
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