export declare class VncSessionManager {
    private readonly sendFrame;
    private readonly log;
    private _sessions;
    private _password;
    private _enabled;
    constructor(sendFrame: (frame: Record<string, unknown>) => void, log?: (m: string) => void);
    /** Enable/disable VNC. Session-start frames are ignored while disabled. */
    setEnabled(enabled: boolean): void;
    /** Update the VNC password used for incoming vnc_session requests. */
    setPassword(password?: string): void;
    /**
     * Dispatch a VNC control frame. Returns true if `msgType` was a VNC frame
     * (and was consumed), false otherwise so the caller can keep matching.
     */
    handleFrame(msgType: string, msg: Record<string, unknown>): boolean;
    private _onSession;
    private _onInput;
    private _onClose;
    /** Stop all active VNC sessions (called on destroy/reconnect). */
    stopAll(): void;
}