问题描述
现在建议使用QWindow进行OpenGL绘制.是否可以在此窗口中添加小部件?如果是这样，怎么办?如果没有，我应该如何使用Qt5将小部件添加到OpenGL程序中?
It's now recommended to use QWindow for OpenGL drawing. Is it possible to add a widget to this window? If so, how? If not, how should I go about adding widgets to an OpenGL program using Qt5?
推荐答案
应用程序通常将QWidget或QQuickView用于其UI，而不直接使用QWindow. QWindow比QWidget更低电平.如果要直接使用QWindow，则需要完成更多工作.您应该手动完成所有与绘图相关的操作，这并不容易.
An application will typically use QWidget or QQuickView for its UI, and not QWindow directly. QWindow is more low level than QWidget. If you want to use QWindow directly, more work is needed to accomplish the job. You should manually do all drawing related things which is not easy.
但是，如果您确实希望使用QWindow/QGuiApplication而不是QWidget/QApplication，则可以使用 QBackingStore 由QWidget使用，或SceneGraph由SceneGraph在QWindow::exposeEvent()中使用.
However, if you really want a QWindow/QGuiApplication instead of QWidget/QApplication, you can use QBackingStore which is used by QWidget, or SceneGraph which is used by QQuick in QWindow::exposeEvent().
您可以使用QPainter QWindow的应用程序的示例="nofollow">此处.
You can see an example of a minimal QWindow based application using QPainter here.
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