Trait DesktopFrameBackend 

pub trait DesktopFrameBackend {
    // Required method
    fn run_frame(&self, frame: DesktopFrame) -> Result<()>;

    // Provided method
    fn capabilities(&self) -> DesktopFrameCapabilities { ... }
}

Native desktop frame backend contract.

Platform modules implement this trait so app code can use one API regardless of target OS. Backend-specific code should stay inside the platform module.

Required Methods

fn run_frame(&self, frame: DesktopFrame) -> Result<()>

Run the desktop frame until the native app exits.

Call this through run_frame_with so capability validation happens before ownership is transferred to the backend.

Errors

Returns an error if the native shell cannot initialize or exits with a platform-specific failure.

Provided Methods

fn capabilities(&self) -> DesktopFrameCapabilities

Return the shell capabilities supported by this backend.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors