提供有关现有串行端口的信息。 更多...
头: | #include <QSerialPortInfo> |
CMake: |
find_package(Qt6 REQUIRED COMPONENTS SerialPort)
target_link_libraries(mytarget PRIVATE Qt6::SerialPort) |
qmake: | QT += serialport |
QSerialPortInfo () | |
QSerialPortInfo (const QSerialPort & port ) | |
QSerialPortInfo (const QString & name ) | |
QSerialPortInfo (const QSerialPortInfo & other ) | |
~QSerialPortInfo () | |
QString | description () const |
bool | hasProductIdentifier () const |
bool | hasVendorIdentifier () const |
bool | isNull () const |
QString | manufacturer () const |
QString | portName () const |
quint16 | productIdentifier () const |
QString | serialNumber () const |
void | swap (QSerialPortInfo & other ) |
QString | systemLocation () const |
quint16 | vendorIdentifier () const |
QSerialPortInfo & | operator= (const QSerialPortInfo & other ) |
QList<QSerialPortInfo> | availablePorts () |
QList<qint32> | standardBaudRates () |
Use the static availablePorts () function to generate a list of QSerialPortInfo objects. Each QSerialPortInfo object in the list represents a single serial port and can be queried for the port name , system location , description , manufacturer , and some other hardware parameters. The QSerialPortInfo class can also be used as an input parameter for the setPort () method of the QSerialPort 类。
The example code enumerates all available serial ports and prints their parameters to console:
const auto serialPortInfos = QSerialPortInfo::availablePorts(); for (const QSerialPortInfo &portInfo : serialPortInfos) { qDebug() << "\n" << "Port:" << portInfo.portName() << "\n" << "Location:" << portInfo.systemLocation() << "\n" << "Description:" << portInfo.description() << "\n" << "Manufacturer:" << portInfo.manufacturer() << "\n" << "Serial number:" << portInfo.serialNumber() << "\n" << "Vendor Identifier:" << (portInfo.hasVendorIdentifier() ? QByteArray::number(portInfo.vendorIdentifier(), 16) : QByteArray()) << "\n" << "Product Identifier:" << (portInfo.hasProductIdentifier() ? QByteArray::number(portInfo.productIdentifier(), 16) : QByteArray()); }
另请参阅 QSerialPort .
构造空的 QSerialPortInfo 对象。
另请参阅 isNull ().
[explicit]
QSerialPortInfo::
QSerialPortInfo
(const
QSerialPort
&
port
)
构造 QSerialPortInfo 对象从串行 port .
[explicit]
QSerialPortInfo::
QSerialPortInfo
(const
QString
&
name
)
构造 QSerialPortInfo 对象从串行端口 name .
This constructor finds the relevant serial port among the available ones according to the port name name , and constructs the serial port info instance for that port.
构造副本为 other .
[noexcept]
QSerialPortInfo::
~QSerialPortInfo
()
销毁 QSerialPortInfo object. References to the values in the object become invalid.
[static]
QList
<
QSerialPortInfo
> QSerialPortInfo::
availablePorts
()
返回系统可用串行端口的列表。
Returns the description string of the serial port, if available; otherwise returns an empty string.
另请参阅 manufacturer () 和 serialNumber ().
返回
true
若存在有效
16-bit
产品编号呈现;否则返回
false
.
另请参阅 productIdentifier (), vendorIdentifier (),和 hasVendorIdentifier ().
返回
true
若存在有效
16-bit
vendor number present; otherwise returns
false
.
另请参阅 vendorIdentifier (), productIdentifier (),和 hasProductIdentifier ().
Returns whether this QSerialPortInfo object holds a serial port definition.
Returns the manufacturer string of the serial port, if available; otherwise returns an empty string.
另请参阅 description () 和 serialNumber ().
返回串行端口的名称。
另请参阅 systemLocation ().
Returns the 16-bit product number for the serial port, if available; otherwise returns zero.
另请参阅 hasProductIdentifier (), vendorIdentifier (),和 hasVendorIdentifier ().
返回串行端口的序列号字符串,若可用;否则返回空字符串。
注意: 序列号可能包含字母。
另请参阅 description () 和 manufacturer ().
[static]
QList
<
qint32
> QSerialPortInfo::
standardBaudRates
()
Returns a list of available standard baud rates supported by the target platform.
交换 QSerialPortInfo other with this QSerialPortInfo 。此操作非常快且从不失败。
Returns the system location of the serial port.
另请参阅 portName ().
Returns the 16-bit vendor number for the serial port, if available; otherwise returns zero.
另请参阅 hasVendorIdentifier (), productIdentifier (),和 hasProductIdentifier ().
设置 QSerialPortInfo 对象等于 other .