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QRadioTunerControl Class Reference

The QRadioTunerControl class provides access to the radio tuning functionality of a QMediaService. More...

    #include <QRadioTunerControl>

This class is under development and is subject to change.

Inherits QMediaControl.

Public Functions

~QRadioTunerControl ()
virtual QtMultimediaKit::AvailabilityError availabilityError () const = 0
virtual QRadioTuner::Band band () const = 0
virtual void cancelSearch () = 0
virtual QRadioTuner::Error error () const = 0
virtual QString errorString () const = 0
virtual int frequency () const = 0
virtual QPair<int, int> frequencyRange ( QRadioTuner::Band band ) const = 0
virtual int frequencyStep ( QRadioTuner::Band band ) const = 0
virtual bool isAvailable () const = 0
virtual bool isBandSupported ( QRadioTuner::Band band ) const = 0
virtual bool isMuted () const = 0
virtual bool isSearching () const = 0
virtual bool isStereo () const = 0
virtual void searchBackward () = 0
virtual void searchForward () = 0
virtual void setBand ( QRadioTuner::Band band ) = 0
virtual void setFrequency ( int frequency ) = 0
virtual void setMuted ( bool muted ) = 0
virtual void setStereoMode ( QRadioTuner::StereoMode mode ) = 0
virtual void setVolume ( int volume ) = 0
virtual int signalStrength () const = 0
virtual void start () = 0
virtual QRadioTuner::State state () const = 0
virtual QRadioTuner::StereoMode stereoMode () const = 0
virtual void stop () = 0
virtual int volume () const = 0
  • 29 public functions inherited from QObject

Signals

void bandChanged ( QRadioTuner::Band band )
void error ( QRadioTuner::Error error )
void frequencyChanged ( int frequency )
void mutedChanged ( bool muted )
void searchingChanged ( bool searching )
void signalStrengthChanged ( int strength )
void stateChanged ( QRadioTuner::State state )
void stereoStatusChanged ( bool stereo )
void volumeChanged ( int volume )

Protected Functions

QRadioTunerControl ( QObject * parent = 0 )
  • 7 protected functions inherited from QObject

Macros

QRadioTunerControl_iid

Additional Inherited Members

  • 1 property inherited from QObject
  • 1 public slot inherited from QObject
  • 1 public type inherited from QObject
  • 4 static public members inherited from QObject
  • 2 protected variables inherited from QObject

Detailed Description

The QRadioTunerControl class provides access to the radio tuning functionality of a QMediaService.

If a 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 class.

The interface name of QRadioTunerControl is com.nokia.Qt.QRadioTunerControl/1.0 as defined in QRadioTunerControl_iid.

See also QMediaService::requestControl() and QRadioTuner.

Member Function Documentation

QRadioTunerControl::QRadioTunerControl ( QObject * parent = 0 )   [protected]

Constructs a radio tuner control with the given parent.

QRadioTunerControl::~QRadioTunerControl ()

Destroys a radio tuner control.

QtMultimediaKit::AvailabilityError QRadioTunerControl::availabilityError () const   [pure virtual]

Returns the error state of the radio service.

QRadioTuner::Band QRadioTunerControl::band () const   [pure virtual]

Returns the frequency band a radio tuner is tuned to.

See also setBand().

void QRadioTunerControl::bandChanged ( QRadioTuner::Band band )   [signal]

Signals that the frequency band a radio tuner is tuned to has changed.

void QRadioTunerControl::cancelSearch ()   [pure virtual]

Stops scanning for a signal.

QRadioTuner::Error QRadioTunerControl::error () const   [pure virtual]

Returns the error state of a radio tuner.

void QRadioTunerControl::error ( QRadioTuner::Error error )   [signal]

Signals that an error has occured.

QString QRadioTunerControl::errorString () const   [pure virtual]

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

int QRadioTunerControl::frequency () const   [pure virtual]

Returns the frequency a radio tuner is tuned to.

See also setFrequency().

void QRadioTunerControl::frequencyChanged ( int frequency )   [signal]

Signals that the frequency a radio tuner is tuned to has changed.

QPair<int, int> QRadioTunerControl::frequencyRange ( QRadioTuner::Band band ) const   [pure virtual]

Returns a frequency band's minimum and maximum frequency.

int QRadioTunerControl::frequencyStep ( QRadioTuner::Band band ) const   [pure virtual]

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

bool QRadioTunerControl::isAvailable () const   [pure virtual]

Returns true if the radio service is ready to use.

bool QRadioTunerControl::isBandSupported ( QRadioTuner::Band band ) const   [pure virtual]

Identifies if a frequency band is supported.

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

bool QRadioTunerControl::isMuted () const   [pure virtual]

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

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

bool QRadioTunerControl::isSearching () const   [pure virtual]

Identifies if a radio tuner is currently scanning for signal.

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

bool QRadioTunerControl::isStereo () const   [pure virtual]

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.

void QRadioTunerControl::mutedChanged ( bool muted )   [signal]

Signals that the muted state of a radio tuner's audio output has changed.

void QRadioTunerControl::searchBackward ()   [pure virtual]

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

void QRadioTunerControl::searchForward ()   [pure virtual]

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

void QRadioTunerControl::searchingChanged ( bool searching )   [signal]

Signals that the searching state of a radio tuner has changed.

void QRadioTunerControl::setBand ( QRadioTuner::Band band )   [pure virtual]

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.

See also band().

void QRadioTunerControl::setFrequency ( int frequency )   [pure virtual]

Sets the frequency a radio tuner is tuned to.

See also frequency().

void QRadioTunerControl::setMuted ( bool muted )   [pure virtual]

Sets the muted state of a radio tuner's audio output.

See also isMuted().

void QRadioTunerControl::setStereoMode ( QRadioTuner::StereoMode mode )   [pure virtual]

Sets a radio tuner's stereo mode.

See also stereoMode() and QRadioTuner::StereoMode.

void QRadioTunerControl::setVolume ( int volume )   [pure virtual]

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

See also volume().

int QRadioTunerControl::signalStrength () const   [pure virtual]

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

void QRadioTunerControl::signalStrengthChanged ( int strength )   [signal]

Signals that the percentage strength of the signal received by a radio tuner has changed.

void QRadioTunerControl::start ()   [pure virtual]

Activate the radio device.

QRadioTuner::State QRadioTunerControl::state () const   [pure virtual]

Returns the current radio tuner state.

void QRadioTunerControl::stateChanged ( QRadioTuner::State state )   [signal]

Signals that the state of a radio tuner has changed.

QRadioTuner::StereoMode QRadioTunerControl::stereoMode () const   [pure virtual]

Returns a radio tuner's stereo mode.

See also setStereoMode() and QRadioTuner::StereoMode.

void QRadioTunerControl::stereoStatusChanged ( bool stereo )   [signal]

Signals that the stereo state of a radio tuner has changed.

void QRadioTunerControl::stop ()   [pure virtual]

Deactivate the radio device.

int QRadioTunerControl::volume () const   [pure virtual]

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

See also setVolume().

void QRadioTunerControl::volumeChanged ( int volume )   [signal]

Signals that the percentage volume of radio tuner's audio output has changed.

Macro Documentation

QRadioTunerControl_iid

com.nokia.Qt.QRadioTunerControl/1.0

Defines the interface name of the QRadioTunerControl class.
Cette page est une traduction d'une page de la documentation de Qt, écrite par Nokia Corporation and/or its subsidiary(-ies). Les éventuels problèmes résultant d'une mauvaise traduction ne sont pas imputables à Nokia. Qt qtmobility-1.0
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