QRadioTunerControl ¶

详细描述 ¶

若 QMediaService can tune an analog radio device it will implement QRadioTunerControl . This control provides a means to tune a radio device to a specific frequency as well as search forwards and backwards for a signal.

The functionality provided by this control is exposed to application code through the QRadioTuner 类。

The interface name of QRadioTunerControl is org.qt-project.qt.radiotunercontrol/5.0 作为定义在 QRadioTunerControl_iid .

另请参阅

requestControl() QRadioTuner

class QRadioTunerControl ( [ parent=None ] ) ¶

param parent

QObject

Constructs a radio tuner control with the given parent .

PySide2.QtMultimedia.QRadioTunerControl. antennaConnectedChanged ( connectionStatus ) ¶

参数

connectionStatus – bool

PySide2.QtMultimedia.QRadioTunerControl. band ( ) ¶

返回类型

Band

Returns the frequency band a radio tuner is tuned to.

另请参阅

setBand()

PySide2.QtMultimedia.QRadioTunerControl. bandChanged ( band ) ¶

参数

band – Band

PySide2.QtMultimedia.QRadioTunerControl. cancelSearch ( ) ¶

Stops scanning for a signal.

PySide2.QtMultimedia.QRadioTunerControl. error ( ) ¶

返回类型

Error

Returns the error state of a radio tuner.

PySide2.QtMultimedia.QRadioTunerControl. error ( err ) ¶

参数

err – Error

PySide2.QtMultimedia.QRadioTunerControl. errorString ( ) ¶

返回类型

unicode

Returns a string describing a radio tuner’s error state.

PySide2.QtMultimedia.QRadioTunerControl. frequency ( ) ¶

返回类型

int

Returns the frequency a radio tuner is tuned to.

另请参阅

setFrequency()

PySide2.QtMultimedia.QRadioTunerControl. frequencyChanged ( frequency ) ¶

参数

frequency – int

PySide2.QtMultimedia.QRadioTunerControl. frequencyRange ( b ) ¶

参数

b – Band

返回类型

Returns a frequency band ‘s minimum and maximum frequency.

PySide2.QtMultimedia.QRadioTunerControl. frequencyStep ( b ) ¶

参数

b – Band

返回类型

int

Returns the number of Hertz to increment the frequency by when stepping through frequencies within a given band .

PySide2.QtMultimedia.QRadioTunerControl. isAntennaConnected ( ) ¶

返回类型

bool

Identifies if there is an antenna connected to the device.

Returns true if there is a connected antenna, and false otherwise.

PySide2.QtMultimedia.QRadioTunerControl. isBandSupported ( b ) ¶

参数

b – Band

返回类型

bool

Identifies if a frequency band is supported.

Returns true if the band is supported, and false if it is not.

PySide2.QtMultimedia.QRadioTunerControl. isMuted ( ) ¶

返回类型

bool

Identifies if a radio tuner’s audio output is muted.

Returns true if the audio is muted, and false if it is not.

PySide2.QtMultimedia.QRadioTunerControl. isSearching ( ) ¶

返回类型

bool

Identifies if a radio tuner is currently scanning for signal.

Returns true if the tuner is scanning, and false if it is not.

PySide2.QtMultimedia.QRadioTunerControl. isStereo ( ) ¶

返回类型

bool

Identifies if a radio tuner is receiving a stereo signal.

Returns true if the tuner is receiving a stereo signal, and false if it is not.

PySide2.QtMultimedia.QRadioTunerControl. mutedChanged ( muted ) ¶

参数

muted – bool

PySide2.QtMultimedia.QRadioTunerControl. searchAllStations ( [ searchMode=QRadioTuner.SearchFast ] ) ¶

参数

searchMode – SearchMode

Starts a scan through the whole frequency band searching all stations with a specific searchMode .

PySide2.QtMultimedia.QRadioTunerControl. searchBackward ( ) ¶

Starts a backwards scan for a signal, starting from the current frequency() .

PySide2.QtMultimedia.QRadioTunerControl. searchForward ( ) ¶

Starts a forward scan for a signal, starting from the current frequency() .

PySide2.QtMultimedia.QRadioTunerControl. searchingChanged ( searching ) ¶

参数

searching – bool

PySide2.QtMultimedia.QRadioTunerControl. setBand ( b ) ¶

参数

b – Band

Sets the frequecy band a radio tuner is tuned to.

Changing the frequency band will reset the frequency to the minimum frequency of the new band.

另请参阅

band()

PySide2.QtMultimedia.QRadioTunerControl. setFrequency ( frequency ) ¶

参数

frequency – int

设置 frequency a radio tuner is tuned to.

另请参阅

frequency()

PySide2.QtMultimedia.QRadioTunerControl. setMuted ( muted ) ¶

参数

muted – bool

设置 muted state of a radio tuner’s audio output.

另请参阅

isMuted()

PySide2.QtMultimedia.QRadioTunerControl. setStereoMode ( mode ) ¶

参数

mode – StereoMode

Sets a radio tuner’s stereo mode .

另请参阅

stereoMode() StereoMode

PySide2.QtMultimedia.QRadioTunerControl. setVolume ( volume ) ¶

参数

volume – int

Sets the percentage volume of a radio tuner’s audio output.

另请参阅

volume()

PySide2.QtMultimedia.QRadioTunerControl. signalStrength ( ) ¶

返回类型

int

Return a radio tuner’s current signal strength as a percentage.

PySide2.QtMultimedia.QRadioTunerControl. signalStrengthChanged ( signalStrength ) ¶

参数

signalStrength – int

PySide2.QtMultimedia.QRadioTunerControl. start ( ) ¶

Activate the radio device.

PySide2.QtMultimedia.QRadioTunerControl. state ( ) ¶

返回类型

State

Returns the current radio tuner state.

PySide2.QtMultimedia.QRadioTunerControl. stateChanged ( state ) ¶

参数

state – State

PySide2.QtMultimedia.QRadioTunerControl. stationFound ( frequency , stationId ) ¶

参数

• frequency – int

• stationId – unicode

PySide2.QtMultimedia.QRadioTunerControl. stereoMode ( ) ¶

返回类型

StereoMode

Returns a radio tuner’s stereo mode.

另请参阅

setStereoMode() StereoMode

PySide2.QtMultimedia.QRadioTunerControl. stereoStatusChanged ( stereo ) ¶

参数

stereo – bool

PySide2.QtMultimedia.QRadioTunerControl. stop ( ) ¶

Deactivate the radio device.

PySide2.QtMultimedia.QRadioTunerControl. volume ( ) ¶

返回类型

int

Returns the volume of a radio tuner’s audio output as a percentage.

另请参阅

setVolume()

PySide2.QtMultimedia.QRadioTunerControl. volumeChanged ( volume ) ¶

参数

volume – int