QImage Class

The QImage class provides a hardware-independent image representation that allows direct access to the pixel data, and can be used as a paint device.

All functions in this class are reentrant.

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Publié le 27 décembre 2024 - Mis à jour le 27 décembre 2024

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QImage Class▲

Header: QImage
CMake:

find_package(Qt6 REQUIRED COMPONENTS Gui)

target_link_libraries(mytarget PRIVATE Qt6::Gui)
qmake: QT += gui
Inherits: QPaintDevice
Group: QImage is part of Painting Classes, shared

Detailed Description▲

Qt provides four classes for handling image data: QImage, QPixmap, QBitmap and QPicture. QImage is designed and optimized for I/O, and for direct pixel access and manipulation, while QPixmap is designed and optimized for showing images on screen. QBitmap is only a convenience class that inherits QPixmap, ensuring a depth of 1. Finally, the QPicture class is a paint device that records and replays QPainter commands.

Because QImage is a