QSGDynamicTexture Class
QSGDynamicTexture 类是动态变化纹理（如渲染到 FBO 的内容）的基类。更多
| 头文件： | #include <QSGDynamicTexture> |
| CMake.QSGDynamicTexture 类 | find_package(Qt6 REQUIRED COMPONENTS Quick)target_link_libraries(mytarget PRIVATE Qt6::Quick) |
| qmake： | QT += quick |
| 继承： | QSGTexture |
公共函数
| virtual bool | updateTexture() = 0 |
成员函数文档
[pure virtual] bool QSGDynamicTexture::updateTexture()
调用此函数可明确更新动态纹理。
如果纹理因更新而发生变化，则函数返回 true；否则返回 false。
注意： 此函数通常在QQuickItem::updatePaintNode() 或QSGNode::preprocess() 中调用，即在场景图的synchronization 或node preprocessing 阶段调用。不鼓励在其他时间调用该函数，否则会导致意想不到的行为。
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