QOpcUaX509ExtensionExtendedKeyUsage Class | Qt OPC UA 6.4.1

- Qt 6.4
- Qt OPC UA
- C++ Classes
- QOpcUaX509ExtensionExtendedKeyUsage
- Qt 6.4.1 Reference Documentation

# QOpcUaX509ExtensionExtendedKeyUsage Class

Class for X509 extended key usage. More...

Header: | #include <QOpcUaX509ExtensionExtendedKeyUsage>
CMake: | find_package(Qt6 REQUIRED COMPONENTS OpcUa) target_link_libraries(mytarget PRIVATE Qt6::OpcUa)
qmake: | QT += opcua
Since: | Qt 5.14
Inherits: | QOpcUaX509Extension

- List of all members, including inherited members

## Public Types

enum class | KeyUsage { TlsWebServerAuthentication, TlsWebClientAuthentication, SignExecutableCode, EmailProtection }

## Public Functions

| QOpcUaX509ExtensionExtendedKeyUsage(const QOpcUaX509ExtensionExtendedKeyUsage &rhs)
| QOpcUaX509ExtensionExtendedKeyUsage()
QOpcUaX509ExtensionExtendedKeyUsage & | operator=(const QOpcUaX509ExtensionExtendedKeyUsage &rhs)
virtual | ~QOpcUaX509ExtensionExtendedKeyUsage()
bool | keyUsage(QOpcUaX509ExtensionExtendedKeyUsage::KeyUsage keyUsage) const
void | setKeyUsage(QOpcUaX509ExtensionExtendedKeyUsage::KeyUsage keyUsage, bool enable = true)
bool | operator==(const QOpcUaX509ExtensionExtendedKeyUsage &rhs) const

## Detailed Description

This class is currently available as a Technology Preview, and therefore the API and functionality provided by the class may be subject to change at any time without prior notice.

## Member Type Documentation

### enum class QOpcUaX509ExtensionExtendedKeyUsage::KeyUsage

Enum with entry types for X509ExtensionExtendedKeyUsage.

Constant | Value | Description
--- | --- | ---
`QOpcUaX509ExtensionExtendedKeyUsage::KeyUsage::TlsWebServerAuthentication` | `0` | Permits TLS webserver Authentication
`QOpcUaX509ExtensionExtendedKeyUsage::KeyUsage::TlsWebClientAuthentication` | `1` | Permits TLS client authentication
`QOpcUaX509ExtensionExtendedKeyUsage::KeyUsage::SignExecutableCode` | `2` | Permits signature of executable code
`QOpcUaX509ExtensionExtendedKeyUsage::KeyUsage::EmailProtection` | `3` | Permits signing emails

## Member Function Documentation

### QOpcUaX509ExtensionExtendedKeyUsage::QOpcUaX509ExtensionExtendedKeyUsage(const QOpcUaX509ExtensionExtendedKeyUsage &rhs)

Constructs a X509ExtensionExtendedKeyUsage from rhs.

### QOpcUaX509ExtensionExtendedKeyUsage::QOpcUaX509ExtensionExtendedKeyUsage()

Constructs a X509ExtensionExtendedKeyUsage.

### QOpcUaX509ExtensionExtendedKeyUsage &QOpcUaX509ExtensionExtendedKeyUsage::operator=(const QOpcUaX509ExtensionExtendedKeyUsage &rhs)

Sets the values from rhs in this X509ExtensionExtendedKeyUsage.

### `[virtual]` QOpcUaX509ExtensionExtendedKeyUsage::~QOpcUaX509ExtensionExtendedKeyUsage()

Destructs a X509ExtensionExtendedKeyUsage.

### bool QOpcUaX509ExtensionExtendedKeyUsage::keyUsage(QOpcUaX509ExtensionExtendedKeyUsage::KeyUsage keyUsage) const

Returns the key usage flag for keyUsage.

See also setKeyUsage().

### void QOpcUaX509ExtensionExtendedKeyUsage::setKeyUsage(QOpcUaX509ExtensionExtendedKeyUsage::KeyUsage keyUsage, bool enable = true)

Sets the key usage flag in keyUsage to enable.

See also keyUsage().

### bool QOpcUaX509ExtensionExtendedKeyUsage::operator==(const QOpcUaX509ExtensionExtendedKeyUsage &rhs) const

Returns `true` if this X509ExtensionExtendedKeyUsage has the same value as rhs.