Window Sync

Keep the operator viewport in sync with the game window size

The xRLive Launcher runs two windows in the same process — the operator dashboard and the game window (where the visual renders). The Window Sync system lets the game window broadcast its size to the operator viewport in real time so the preview stays correctly proportioned.

How it works

The xRLive Window Sync Subsystem (a UGameInstanceSubsystem) acts as the message bus between the two windows. Since both windows share the same process and game instance, the subsystem is globally accessible from any Blueprint.

Game window resizes
    ↓
Publish Game Window Size (NewSize)  ← call this from your game window BP
    ↓
OnGameWindowSizeChanged delegate fires
    ↓
xRLive_Viewport updates its Size Box aspect ratio  ← handled automatically

Getting the subsystem

Get Game Instance → Get Subsystem (xRLive Window Sync Subsystem)