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Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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QPlatformImageCapture Class Referenceabstract

#include <qplatformimagecapture_p.h>

+ Inheritance diagram for QPlatformImageCapture:
+ Collaboration diagram for QPlatformImageCapture:

Signals

void readyForCaptureChanged (bool ready)
 
void imageExposed (int requestId)
 
void imageCaptured (int requestId, const QImage &preview)
 
void imageMetadataAvailable (int id, const QMediaMetaData &)
 
void imageAvailable (int requestId, const QVideoFrame &buffer)
 
void imageSaved (int requestId, const QString &fileName)
 
void error (int id, int error, const QString &errorString)
 
- Signals inherited from QObject
void destroyed (QObject *=nullptr)
 This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.
 
void objectNameChanged (const QString &objectName, QPrivateSignal)
 This signal is emitted after the object's name has been changed.
 

Public Member Functions

virtual bool isReadyForCapture () const =0
 
virtual int capture (const QString &fileName)=0
 
virtual int captureToBuffer ()=0
 
virtual QImageEncoderSettings imageSettings () const =0
 
virtual void setImageSettings (const QImageEncoderSettings &settings)=0
 
virtual void setMetaData (const QMediaMetaData &m)
 
QMediaMetaData metaData () const
 
QImageCaptureimageCapture ()
 
- Public Member Functions inherited from QObject
Q_INVOKABLE QObject (QObject *parent=nullptr)
 Constructs an object with parent object parent.
 
virtual ~QObject ()
 Destroys the object, deleting all its child objects.
 
virtual bool event (QEvent *event)
 This virtual function receives events to an object and should return true if the event e was recognized and processed.
 
virtual bool eventFilter (QObject *watched, QEvent *event)
 Filters events if this object has been installed as an event filter for the watched object.
 
QString objectName () const
 
Q_WEAK_OVERLOAD void setObjectName (const QString &name)
 Sets the object's name to name.
 
void setObjectName (QAnyStringView name)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
QBindable< QStringbindableObjectName ()
 
bool isWidgetType () const
 Returns true if the object is a widget; otherwise returns false.
 
bool isWindowType () const
 Returns true if the object is a window; otherwise returns false.
 
bool isQuickItemType () const
 Returns true if the object is a QQuickItem; otherwise returns false.
 
bool signalsBlocked () const noexcept
 Returns true if signals are blocked; otherwise returns false.
 
bool blockSignals (bool b) noexcept
 If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it).
 
QThreadthread () const
 Returns the thread in which the object lives.
 
bool moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL)
 Changes the thread affinity for this object and its children and returns true on success.
 
int startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
 This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.
 
int startTimer (std::chrono::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer)
 
void killTimer (int id)
 Kills the timer with timer identifier, id.
 
void killTimer (Qt::TimerId id)
 
template<typename T >
findChild (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.
 
template<typename T >
QList< T > findChildren (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects.
 
template<typename T >
findChild (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
template<typename T >
QList< T > findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
const QObjectListchildren () const
 Returns a list of child objects.
 
void setParent (QObject *parent)
 Makes the object a child of parent.
 
void installEventFilter (QObject *filterObj)
 Installs an event filter filterObj on this object.
 
void removeEventFilter (QObject *obj)
 Removes an event filter object obj from this object.
 
QMetaObject::Connection connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const
 
bool disconnect (const char *signal=nullptr, const QObject *receiver=nullptr, const char *member=nullptr) const
 
bool disconnect (const QObject *receiver, const char *member=nullptr) const
 
void dumpObjectTree () const
 Dumps a tree of children to the debug output.
 
void dumpObjectInfo () const
 Dumps information about signal connections, etc.
 
bool setProperty (const char *name, const QVariant &value)
 Sets the value of the object's name property to value.
 
bool setProperty (const char *name, QVariant &&value)
 
QVariant property (const char *name) const
 Returns the value of the object's name property.
 
QList< QByteArraydynamicPropertyNames () const
 
QBindingStoragebindingStorage ()
 
const QBindingStoragebindingStorage () const
 
QObjectparent () const
 Returns a pointer to the parent object.
 
bool inherits (const char *classname) const
 Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false.
 

Static Public Member Functions

static QString msgCameraNotReady ()
 
static QString msgImageCaptureNotSet ()
 
- Static Public Member Functions inherited from QObject
static QMetaObject::Connection connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection)
 \threadsafe
 
static QMetaObject::Connection connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)
 
template<typename Func1 , typename Func2 >
static QMetaObject::Connection connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType *context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection)
 
template<typename Func1 , typename Func2 >
static QMetaObject::Connection connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot)
 
static bool disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member)
 \threadsafe
 
static bool disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member)
 
static bool disconnect (const QMetaObject::Connection &)
 Disconnect a connection.
 
template<typename Func1 , typename Func2 >
static bool disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiver, Func2 slot)
 
template<typename Func1 >
static bool disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const QObject *receiver, void **zero)
 

Protected Member Functions

 QPlatformImageCapture (QImageCapture *parent=nullptr)
 
- Protected Member Functions inherited from QObject
QObjectsender () const
 Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr.
 
int senderSignalIndex () const
 
int receivers (const char *signal) const
 Returns the number of receivers connected to the signal.
 
bool isSignalConnected (const QMetaMethod &signal) const
 
virtual void timerEvent (QTimerEvent *event)
 This event handler can be reimplemented in a subclass to receive timer events for the object.
 
virtual void childEvent (QChildEvent *event)
 This event handler can be reimplemented in a subclass to receive child events.
 
virtual void customEvent (QEvent *event)
 This event handler can be reimplemented in a subclass to receive custom events.
 
virtual void connectNotify (const QMetaMethod &signal)
 
virtual void disconnectNotify (const QMetaMethod &signal)
 
 QObject (QObjectPrivate &dd, QObject *parent=nullptr)
 

Additional Inherited Members

- Public Slots inherited from QObject
void deleteLater ()
 \threadsafe
 
- Protected Attributes inherited from QObject
QScopedPointer< QObjectDatad_ptr
 
- Properties inherited from QObject
QString objectName
 the name of this object
 

Detailed Description

Definition at line 54 of file qplatformimagecapture_p.h.

Constructor & Destructor Documentation

◆ QPlatformImageCapture()

QT_BEGIN_NAMESPACE QPlatformImageCapture::QPlatformImageCapture ( QImageCapture * parent = nullptr)
explicitprotected

Definition at line 9 of file qplatformimagecapture.cpp.

Member Function Documentation

◆ capture()

virtual int QPlatformImageCapture::capture ( const QString & fileName)
pure virtual

◆ captureToBuffer()

virtual int QPlatformImageCapture::captureToBuffer ( )
pure virtual

◆ error

void QPlatformImageCapture::error ( int id,
int error,
const QString & errorString )
signal

Referenced by QAndroidImageCapture::setCaptureSession().

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◆ imageAvailable

void QPlatformImageCapture::imageAvailable ( int requestId,
const QVideoFrame & buffer )
signal

Referenced by QImageCapture::QImageCapture(), QFFmpegImageCapture::newVideoFrame(), QGstreamerImageCapture::probeBuffer(), and QAndroidImageCapture::setCaptureSession().

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◆ imageCapture()

QImageCapture * QPlatformImageCapture::imageCapture ( )
inline

Definition at line 70 of file qplatformimagecapture_p.h.

◆ imageCaptured

void QPlatformImageCapture::imageCaptured ( int requestId,
const QImage & preview )
signal

Referenced by QImageCapture::QImageCapture(), QWasmImageCapture::captureToBuffer(), QFFmpegImageCapture::newVideoFrame(), QGstreamerImageCapture::probeBuffer(), and QAndroidImageCapture::setCaptureSession().

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◆ imageExposed

void QPlatformImageCapture::imageExposed ( int requestId)
signal

Referenced by QImageCapture::QImageCapture(), QFFmpegImageCapture::newVideoFrame(), QGstreamerImageCapture::probeBuffer(), and QAndroidImageCapture::setCaptureSession().

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◆ imageMetadataAvailable

void QPlatformImageCapture::imageMetadataAvailable ( int id,
const QMediaMetaData &  )
signal

Referenced by QImageCapture::QImageCapture(), QFFmpegImageCapture::newVideoFrame(), QGstreamerImageCapture::probeBuffer(), and QAndroidImageCapture::setCaptureSession().

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◆ imageSaved

void QPlatformImageCapture::imageSaved ( int requestId,
const QString & fileName )
signal

Referenced by QImageCapture::QImageCapture(), QWasmImageCapture::capture(), QFFmpegImageCapture::newVideoFrame(), and QAndroidImageCapture::setCaptureSession().

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◆ imageSettings()

virtual QImageEncoderSettings QPlatformImageCapture::imageSettings ( ) const
pure virtual

◆ isReadyForCapture()

virtual bool QPlatformImageCapture::isReadyForCapture ( ) const
pure virtual

◆ metaData()

QMediaMetaData QPlatformImageCapture::metaData ( ) const
inline

Definition at line 68 of file qplatformimagecapture_p.h.

Referenced by QGstreamerImageCapture::probeBuffer().

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◆ msgCameraNotReady()

QString QPlatformImageCapture::msgCameraNotReady ( )
static

Definition at line 15 of file qplatformimagecapture.cpp.

Referenced by QQnxImageCapture::capture(), QWasmImageCapture::capture(), QQnxImageCapture::captureToBuffer(), QWasmImageCapture::captureToBuffer(), AVFImageCapture::doCapture(), and QFFmpegImageCapture::doCapture().

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◆ msgImageCaptureNotSet()

QString QPlatformImageCapture::msgImageCaptureNotSet ( )
static

Definition at line 20 of file qplatformimagecapture.cpp.

Referenced by AVFImageCapture::doCapture(), and QFFmpegImageCapture::doCapture().

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◆ readyForCaptureChanged

void QPlatformImageCapture::readyForCaptureChanged ( bool ready)
signal

◆ setImageSettings()

virtual void QPlatformImageCapture::setImageSettings ( const QImageEncoderSettings & settings)
pure virtual

◆ setMetaData()

virtual void QPlatformImageCapture::setMetaData ( const QMediaMetaData & m)
inlinevirtual

Reimplemented in QGstreamerImageCapture.

Definition at line 67 of file qplatformimagecapture_p.h.

Referenced by QGstreamerImageCapture::setMetaData().

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The documentation for this class was generated from the following files: