QSGDynamicTexture Class
QSGDynamicTexture 类是用于动态更改纹理（例如渲染到 FBO 中的内容）的基类。更多内容...
| 头文件： | #include <QSGDynamicTexture> |
| CMake： | find_package(Qt6 REQUIRED COMPONENTS Quick) target_link_libraries(mytarget PRIVATE Qt6::Quick) |
| qmake： | QT += quick |
| 继承自： | QSGTexture |
公共函数
| QSGDynamicTexture() | |
| virtual bool | updateTexture() = 0 |
成员函数文档
[noexcept default] QSGDynamicTexture::QSGDynamicTexture()
默认——构造一个QSGDynamicTexture 实例。
[pure virtual] bool QSGDynamicTexture::updateTexture()
调用此函数以显式更新动态纹理。
如果更新导致纹理发生变化，该函数返回 true；否则返回 false。
注意：该 函数通常由QQuickItem::updatePaintNode()或QSGNode::preprocess()调用，即在场景图的synchronization 或node preprocessing 阶段。不建议在其他时间调用该函数，否则可能会导致意外行为。
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