slint::RenderingState

enum class RenderingState

Value	Description
RenderingSetup	The window has been created and the graphics adapter/context initialized.
BeforeRendering	The scene of items is about to be rendered.
AfterRendering
RenderingTeardown

This enum describes the different rendering states, that will be provided to the parameter of the callback for set_rendering_notifier on the slint::Window.

When OpenGL is used for rendering, the context will be current. It’s safe to call OpenGL functions, but it is crucial that the state of the context is preserved. So make sure to save and restore state such as TEXTURE_BINDING_2D or ARRAY_BUFFER_BINDING perfectly.