Struct Frame

pub struct Frame { /* private fields */ }

Represents the surroundings of your app.

It provides methods to inspect the surroundings (are we on the web?), access to persistent storage, and access to the rendering backend.

Implementations

impl Frame

pub fn is_web(&self) -> bool

True if you are in a web environment.

Equivalent to cfg!(target_arch = "wasm32")

pub fn info(&self) -> &IntegrationInfo

Information about the integration.

pub fn storage(&self) -> Option<&dyn Storage>

A place where you can store custom data in a way that persists when you restart the app.

pub fn storage_mut(&mut self) -> Option<&mut (dyn Storage + 'static)>

A place where you can store custom data in a way that persists when you restart the app.

pub fn gl(&self) -> Option<&Arc<Context>>

A reference to the underlying glow (OpenGL) context.

This can be used, for instance, to:

• Render things to offscreen buffers.
• Read the pixel buffer from the previous frame (glow::Context::read_pixels).
• Render things behind the egui windows.

Note that all egui painting is deferred to after the call to App::update (egui only collects egui::Shapes and then eframe paints them all in one go later on).

To get a glow context you need to compile with the glow feature flag, and run eframe using Renderer::Glow.

pub fn register_native_glow_texture(&mut self, native: Texture) -> TextureId

Register your own glow::Texture, and then you can use the returned egui::TextureId to render your texture with egui.

This function will take the ownership of your glow::Texture, so please do not delete your glow::Texture after registering.

Trait Implementations

impl HasDisplayHandle for Frame

fn display_handle(&self) -> Result<DisplayHandle<'_>, HandleError>

Get a handle to the display controller of the windowing system.

impl HasWindowHandle for Frame

fn window_handle(&self) -> Result<WindowHandle<'_>, HandleError>

Get a handle to the window.