QQuickItemGrabResult Class

The QQuickItemGrabResult contains the result from QQuickItem::grabToImage(). More...

Header: #include <QQuickItemGrabResult>
CMake: find_package(Qt6 REQUIRED COMPONENTS Quick)
target_link_libraries(mytarget PRIVATE Qt6::Quick)
qmake: QT += quick
Instantiated By: ItemGrabResult
Inherits: QObject

Properties

Public Functions

QImage image() const
bool saveToFile(const QString &fileName) const
bool saveToFile(const QUrl &filePath) const
QUrl url() const

Signals

void ready()

Detailed Description

See also QQuickItem::grabToImage().

Property Documentation

[read-only] image : const QImage

This property holds the pixel results from a grab.

If the grab is not yet complete or if it failed, a null image is returned (image.isNull() will return true).

Access functions:

QImage image() const

[read-only] url : const QUrl

This property holds a URL which can be used in conjunction with URL based image consumers, such as the QtQuick::Image type.

The URL is valid until the QQuickItemGrabResult object is deleted.

The URL does not represent a valid file or location to read it from, it is primarily a key to access images through Qt Quick's image-based types.

Access functions:

QUrl url() const

Member Function Documentation

[signal] void QQuickItemGrabResult::ready()

This signal is emitted when the grab has completed.

[invokable] bool QQuickItemGrabResult::saveToFile(const QString &fileName) const

Saves the grab result as an image to fileName. Returns true if successful; otherwise returns false.

Note: In Qt versions prior to 5.9, this function is marked as non-const.

Note: This function can be invoked via the meta-object system and from QML. See Q_INVOKABLE.

[invokable, since 6.2] bool QQuickItemGrabResult::saveToFile(const QUrl &filePath) const

Saves the grab result as an image to filePath, which must refer to a local file name with a supported image format extension. Returns true if successful; otherwise returns false.

Note: This function can be invoked via the meta-object system and from QML. See Q_INVOKABLE.

This function was introduced in Qt 6.2.

© 2024 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.