Notation used in Ruby API documentation
Module: QtGui
Description: Binding of QImageWriter
Sub-classes: ImageWriterError, QFlags_ImageWriterError
new QImageWriter | new | Constructor QImageWriter::QImageWriter() | |
new QImageWriter | new | (QIODevice ptr device, bytes format) | Constructor QImageWriter::QImageWriter(QIODevice *device, const QByteArray &format) |
new QImageWriter | new | (string fileName, bytes format = QByteArray()) | Constructor QImageWriter::QImageWriter(const QString &fileName, const QByteArray &format) |
[const] | QImageWriter ptr | _const_cast | Returns a non-const reference to self. | |
void | _create | Ensures the C++ object is created | ||
void | _destroy | Explicitly destroys the object | ||
[const] | bool | _destroyed? | Returns a value indicating whether the object was already destroyed | |
[const] | bool | _is_const_object? | Returns a value indicating whether the reference is a const reference | |
void | _manage | Marks the object as managed by the script side. | ||
void | _unmanage | Marks the object as no longer owned by the script side. | ||
[const] | bool | canWrite | Method bool QImageWriter::canWrite() | |
[const] | int | compression | Method int QImageWriter::compression() | |
void | compression= | (int compression) | Method void QImageWriter::setCompression(int compression) | |
[const] | string | description | Method QString QImageWriter::description() | |
void | description= | (string description) | Method void QImageWriter::setDescription(const QString &description) | |
[const] | QIODevice ptr | device | Method QIODevice *QImageWriter::device() | |
void | device= | (QIODevice ptr device) | Method void QImageWriter::setDevice(QIODevice *device) | |
[const] | QImageWriter_ImageWriterError | error | Method QImageWriter::ImageWriterError QImageWriter::error() | |
[const] | string | errorString | Method QString QImageWriter::errorString() | |
[const] | string | fileName | Method QString QImageWriter::fileName() | |
void | fileName= | (string fileName) | Method void QImageWriter::setFileName(const QString &fileName) | |
[const] | bytes | format | Method QByteArray QImageWriter::format() | |
void | format= | (bytes format) | Method void QImageWriter::setFormat(const QByteArray &format) | |
[const] | float | gamma | Method float QImageWriter::gamma() | |
void | gamma= | (float gamma) | Method void QImageWriter::setGamma(float gamma) | |
[const] | bool | optimizedWrite | Method bool QImageWriter::optimizedWrite() | |
void | optimizedWrite= | (bool optimize) | Method void QImageWriter::setOptimizedWrite(bool optimize) | |
[const] | bool | progressiveScanWrite | Method bool QImageWriter::progressiveScanWrite() | |
void | progressiveScanWrite= | (bool progressive) | Method void QImageWriter::setProgressiveScanWrite(bool progressive) | |
[const] | int | quality | Method int QImageWriter::quality() | |
void | quality= | (int quality) | Method void QImageWriter::setQuality(int quality) | |
void | setCompression | (int compression) | Method void QImageWriter::setCompression(int compression) | |
void | setDescription | (string description) | Method void QImageWriter::setDescription(const QString &description) | |
void | setDevice | (QIODevice ptr device) | Method void QImageWriter::setDevice(QIODevice *device) | |
void | setFileName | (string fileName) | Method void QImageWriter::setFileName(const QString &fileName) | |
void | setFormat | (bytes format) | Method void QImageWriter::setFormat(const QByteArray &format) | |
void | setGamma | (float gamma) | Method void QImageWriter::setGamma(float gamma) | |
void | setOptimizedWrite | (bool optimize) | Method void QImageWriter::setOptimizedWrite(bool optimize) | |
void | setProgressiveScanWrite | (bool progressive) | Method void QImageWriter::setProgressiveScanWrite(bool progressive) | |
void | setQuality | (int quality) | Method void QImageWriter::setQuality(int quality) | |
void | setSubType | (bytes type) | Method void QImageWriter::setSubType(const QByteArray &type) | |
void | setText | (string key, string text) | Method void QImageWriter::setText(const QString &key, const QString &text) | |
void | setTransformation | (QImageIOHandler_QFlags_Transformation orientation) | Method void QImageWriter::setTransformation(QFlags<QImageIOHandler::Transformation> orientation) | |
[const] | bytes | subType | Method QByteArray QImageWriter::subType() | |
void | subType= | (bytes type) | Method void QImageWriter::setSubType(const QByteArray &type) | |
[const] | bytes[] | supportedSubTypes | Method QList<QByteArray> QImageWriter::supportedSubTypes() | |
[const] | bool | supportsOption | (const QImageIOHandler_ImageOption option) | Method bool QImageWriter::supportsOption(QImageIOHandler::ImageOption option) |
[const] | QImageIOHandler_QFlags_Transformation | transformation | Method QFlags<QImageIOHandler::Transformation> QImageWriter::transformation() | |
void | transformation= | (QImageIOHandler_QFlags_Transformation orientation) | Method void QImageWriter::setTransformation(QFlags<QImageIOHandler::Transformation> orientation) | |
bool | write | (const QImage image) | Method bool QImageWriter::write(const QImage &image) |
[static,const] | QImageWriter_ImageWriterError | DeviceError | Enum constant QImageWriter::DeviceError | |
[static,const] | QImageWriter_ImageWriterError | InvalidImageError | Enum constant QImageWriter::InvalidImageError | |
[static,const] | QImageWriter_ImageWriterError | UnknownError | Enum constant QImageWriter::UnknownError | |
[static,const] | QImageWriter_ImageWriterError | UnsupportedFormatError | Enum constant QImageWriter::UnsupportedFormatError | |
bytes[] | imageFormatsForMimeType | (bytes mimeType) | Static method QList<QByteArray> QImageWriter::imageFormatsForMimeType(const QByteArray &mimeType) | |
bytes[] | supportedImageFormats | Static method QList<QByteArray> QImageWriter::supportedImageFormats() | ||
bytes[] | supportedMimeTypes | Static method QList<QByteArray> QImageWriter::supportedMimeTypes() | ||
string | tr | (string sourceText, string disambiguation = nullptr, int n = -1) | Static method QString QImageWriter::tr(const char *sourceText, const char *disambiguation, int n) | |
string | trUtf8 | (string sourceText, string disambiguation = nullptr, int n = -1) | Static method QString QImageWriter::trUtf8(const char *sourceText, const char *disambiguation, int n) |
void | create | Use of this method is deprecated. Use _create instead | ||
void | destroy | Use of this method is deprecated. Use _destroy instead | ||
[const] | bool | destroyed? | Use of this method is deprecated. Use _destroyed? instead | |
[const] | bool | is_const_object? | Use of this method is deprecated. Use _is_const_object? instead |
DeviceError | Signature: [static,const] QImageWriter_ImageWriterError DeviceError Description: Enum constant QImageWriter::DeviceError Python specific notes: |
InvalidImageError | Signature: [static,const] QImageWriter_ImageWriterError InvalidImageError Description: Enum constant QImageWriter::InvalidImageError Python specific notes: |
UnknownError | Signature: [static,const] QImageWriter_ImageWriterError UnknownError Description: Enum constant QImageWriter::UnknownError Python specific notes: |
UnsupportedFormatError | Signature: [static,const] QImageWriter_ImageWriterError UnsupportedFormatError Description: Enum constant QImageWriter::UnsupportedFormatError Python specific notes: |
_const_cast | Signature: [const] QImageWriter ptr _const_cast Description: Returns a non-const reference to self. Basically, this method allows turning a const object reference to a non-const one. This method is provided as last resort to remove the constness from an object. Usually there is a good reason for a const object reference, so using this method may have undesired side effects. This method has been introduced in version 0.29.6. |
_create | Signature: void _create Description: Ensures the C++ object is created Use this method to ensure the C++ object is created, for example to ensure that resources are allocated. Usually C++ objects are created on demand and not necessarily when the script object is created. |
_destroy | Signature: void _destroy Description: Explicitly destroys the object Explicitly destroys the object on C++ side if it was owned by the script interpreter. Subsequent access to this object will throw an exception. If the object is not owned by the script, this method will do nothing. |
_destroyed? | Signature: [const] bool _destroyed? Description: Returns a value indicating whether the object was already destroyed This method returns true, if the object was destroyed, either explicitly or by the C++ side. The latter may happen, if the object is owned by a C++ object which got destroyed itself. |
_is_const_object? | Signature: [const] bool _is_const_object? Description: Returns a value indicating whether the reference is a const reference This method returns true, if self is a const reference. In that case, only const methods may be called on self. |
_manage | Signature: void _manage Description: Marks the object as managed by the script side. After calling this method on an object, the script side will be responsible for the management of the object. This method may be called if an object is returned from a C++ function and the object is known not to be owned by any C++ instance. If necessary, the script side may delete the object if the script's reference is no longer required. Usually it's not required to call this method. It has been introduced in version 0.24. |
_unmanage | Signature: void _unmanage Description: Marks the object as no longer owned by the script side. Calling this method will make this object no longer owned by the script's memory management. Instead, the object must be managed in some other way. Usually this method may be called if it is known that some C++ object holds and manages this object. Technically speaking, this method will turn the script's reference into a weak reference. After the script engine decides to delete the reference, the object itself will still exist. If the object is not managed otherwise, memory leaks will occur. Usually it's not required to call this method. It has been introduced in version 0.24. |
canWrite | Signature: [const] bool canWrite Description: Method bool QImageWriter::canWrite() |
compression | Signature: [const] int compression Description: Method int QImageWriter::compression() Python specific notes: |
compression= | Signature: void compression= (int compression) Description: Method void QImageWriter::setCompression(int compression) Python specific notes: |
create | Signature: void create Description: Ensures the C++ object is created Use of this method is deprecated. Use _create instead Use this method to ensure the C++ object is created, for example to ensure that resources are allocated. Usually C++ objects are created on demand and not necessarily when the script object is created. |
description | Signature: [const] string description Description: Method QString QImageWriter::description() Python specific notes: |
description= | Signature: void description= (string description) Description: Method void QImageWriter::setDescription(const QString &description) Python specific notes: |
destroy | Signature: void destroy Description: Explicitly destroys the object Use of this method is deprecated. Use _destroy instead Explicitly destroys the object on C++ side if it was owned by the script interpreter. Subsequent access to this object will throw an exception. If the object is not owned by the script, this method will do nothing. |
destroyed? | Signature: [const] bool destroyed? Description: Returns a value indicating whether the object was already destroyed Use of this method is deprecated. Use _destroyed? instead This method returns true, if the object was destroyed, either explicitly or by the C++ side. The latter may happen, if the object is owned by a C++ object which got destroyed itself. |
device | Signature: [const] QIODevice ptr device Description: Method QIODevice *QImageWriter::device() Python specific notes: |
device= | Signature: void device= (QIODevice ptr device) Description: Method void QImageWriter::setDevice(QIODevice *device) Python specific notes: |
error | Signature: [const] QImageWriter_ImageWriterError error Description: Method QImageWriter::ImageWriterError QImageWriter::error() |
errorString | Signature: [const] string errorString Description: Method QString QImageWriter::errorString() |
fileName | Signature: [const] string fileName Description: Method QString QImageWriter::fileName() Python specific notes: |
fileName= | Signature: void fileName= (string fileName) Description: Method void QImageWriter::setFileName(const QString &fileName) Python specific notes: |
format | Signature: [const] bytes format Description: Method QByteArray QImageWriter::format() Python specific notes: |
format= | Signature: void format= (bytes format) Description: Method void QImageWriter::setFormat(const QByteArray &format) Python specific notes: |
gamma | Signature: [const] float gamma Description: Method float QImageWriter::gamma() Python specific notes: |
gamma= | Signature: void gamma= (float gamma) Description: Method void QImageWriter::setGamma(float gamma) Python specific notes: |
imageFormatsForMimeType | Signature: [static] bytes[] imageFormatsForMimeType (bytes mimeType) Description: Static method QList<QByteArray> QImageWriter::imageFormatsForMimeType(const QByteArray &mimeType) This method is static and can be called without an instance. |
is_const_object? | Signature: [const] bool is_const_object? Description: Returns a value indicating whether the reference is a const reference Use of this method is deprecated. Use _is_const_object? instead This method returns true, if self is a const reference. In that case, only const methods may be called on self. |
new | (1) Signature: [static] new QImageWriter new Description: Constructor QImageWriter::QImageWriter() This method creates an object of class QImageWriter. Python specific notes: |
(2) Signature: [static] new QImageWriter new (QIODevice ptr device, bytes format) Description: Constructor QImageWriter::QImageWriter(QIODevice *device, const QByteArray &format) This method creates an object of class QImageWriter. Python specific notes: | |
(3) Signature: [static] new QImageWriter new (string fileName, bytes format = QByteArray()) Description: Constructor QImageWriter::QImageWriter(const QString &fileName, const QByteArray &format) This method creates an object of class QImageWriter. Python specific notes: | |
optimizedWrite | Signature: [const] bool optimizedWrite Description: Method bool QImageWriter::optimizedWrite() Python specific notes: |
optimizedWrite= | Signature: void optimizedWrite= (bool optimize) Description: Method void QImageWriter::setOptimizedWrite(bool optimize) Python specific notes: |
progressiveScanWrite | Signature: [const] bool progressiveScanWrite Description: Method bool QImageWriter::progressiveScanWrite() Python specific notes: |
progressiveScanWrite= | Signature: void progressiveScanWrite= (bool progressive) Description: Method void QImageWriter::setProgressiveScanWrite(bool progressive) Python specific notes: |
quality | Signature: [const] int quality Description: Method int QImageWriter::quality() Python specific notes: |
quality= | Signature: void quality= (int quality) Description: Method void QImageWriter::setQuality(int quality) Python specific notes: |
setCompression | Signature: void setCompression (int compression) Description: Method void QImageWriter::setCompression(int compression) Python specific notes: |
setDescription | Signature: void setDescription (string description) Description: Method void QImageWriter::setDescription(const QString &description) Python specific notes: |
setDevice | Signature: void setDevice (QIODevice ptr device) Description: Method void QImageWriter::setDevice(QIODevice *device) Python specific notes: |
setFileName | Signature: void setFileName (string fileName) Description: Method void QImageWriter::setFileName(const QString &fileName) Python specific notes: |
setFormat | Signature: void setFormat (bytes format) Description: Method void QImageWriter::setFormat(const QByteArray &format) Python specific notes: |
setGamma | Signature: void setGamma (float gamma) Description: Method void QImageWriter::setGamma(float gamma) Python specific notes: |
setOptimizedWrite | Signature: void setOptimizedWrite (bool optimize) Description: Method void QImageWriter::setOptimizedWrite(bool optimize) Python specific notes: |
setProgressiveScanWrite | Signature: void setProgressiveScanWrite (bool progressive) Description: Method void QImageWriter::setProgressiveScanWrite(bool progressive) Python specific notes: |
setQuality | Signature: void setQuality (int quality) Description: Method void QImageWriter::setQuality(int quality) Python specific notes: |
setSubType | Signature: void setSubType (bytes type) Description: Method void QImageWriter::setSubType(const QByteArray &type) Python specific notes: |
setText | Signature: void setText (string key, string text) Description: Method void QImageWriter::setText(const QString &key, const QString &text) |
setTransformation | Signature: void setTransformation (QImageIOHandler_QFlags_Transformation orientation) Description: Method void QImageWriter::setTransformation(QFlags<QImageIOHandler::Transformation> orientation) Python specific notes: |
subType | Signature: [const] bytes subType Description: Method QByteArray QImageWriter::subType() Python specific notes: |
subType= | Signature: void subType= (bytes type) Description: Method void QImageWriter::setSubType(const QByteArray &type) Python specific notes: |
supportedImageFormats | Signature: [static] bytes[] supportedImageFormats Description: Static method QList<QByteArray> QImageWriter::supportedImageFormats() This method is static and can be called without an instance. |
supportedMimeTypes | Signature: [static] bytes[] supportedMimeTypes Description: Static method QList<QByteArray> QImageWriter::supportedMimeTypes() This method is static and can be called without an instance. |
supportedSubTypes | Signature: [const] bytes[] supportedSubTypes Description: Method QList<QByteArray> QImageWriter::supportedSubTypes() |
supportsOption | Signature: [const] bool supportsOption (const QImageIOHandler_ImageOption option) Description: Method bool QImageWriter::supportsOption(QImageIOHandler::ImageOption option) |
tr | Signature: [static] string tr (string sourceText, string disambiguation = nullptr, int n = -1) Description: Static method QString QImageWriter::tr(const char *sourceText, const char *disambiguation, int n) This method is static and can be called without an instance. |
trUtf8 | Signature: [static] string trUtf8 (string sourceText, string disambiguation = nullptr, int n = -1) Description: Static method QString QImageWriter::trUtf8(const char *sourceText, const char *disambiguation, int n) This method is static and can be called without an instance. |
transformation | Signature: [const] QImageIOHandler_QFlags_Transformation transformation Description: Method QFlags<QImageIOHandler::Transformation> QImageWriter::transformation() Python specific notes: |
transformation= | Signature: void transformation= (QImageIOHandler_QFlags_Transformation orientation) Description: Method void QImageWriter::setTransformation(QFlags<QImageIOHandler::Transformation> orientation) Python specific notes: |
write | Signature: bool write (const QImage image) Description: Method bool QImageWriter::write(const QImage &image) |