M2ScreenService

The current head orientation quaternion.

The current frame tick count since the SDK started.

The screen currently at the top of the stack and visible to the user.

Pushes a regular (non-system) screen onto the stack, making it the topmost visible screen.

Turns the phone-side HUD preview on or off.

Returns the current rendering center X offset, used for personal display alignment.

Returns the current rendering center Y offset, used for personal display alignment.

Number of draw-object ids currently allocated to the glasses out of the fixed 255-id pool (id 0 is reserved as a sentinel). Every on-screen drawable (card, text, image, animator target…) holds one id for as long as it's on screen; exhausting the pool fails further allocations (silently, on the wire). Poll this to warn the user before that happens.

Logs the hierarchical drawable tree of all screens to the SDK logger for debugging.

Registers a listener for frame-based draw events.

Registers a listener for screen stack and rendering configuration events.

Removes a regular (non-system) screen from the stack and pops the next screen to the top.

Removes the current topmost screen (if present).

Sets the rendering center X offset for personal display alignment.

Sets the rendering center Y offset for personal display alignment.

Returns the number of screens currently in the screen stack.

Unregisters a previously registered draw event listener.

Unregisters a previously registered screen event listener.