/**
 * Snapshot of modifier key states captured by the editor input system.
 *
 * This mirrors the DOM Keyboard/MouseEvent modifier fields, but is exposed as
 * a stable, command-friendly data object so commands can read modifier state
 * without attaching to raw key/mouse events directly.
 *
 * Notes:
 * - This is a *moment-in-time* state (not a toggle).
 * - Toggle-style behaviors (e.g. Ctrl to flip arc direction) should live in
 *   {@link AcEdInputToggles}.
 */
export interface AcEdInputModifiers {
    /**
     * Whether the Control key is currently pressed.
     *
     * On Windows/Linux this reflects the physical Ctrl key.
     * On macOS, this reflects the Control key (not Command).
     */
    ctrlKey: boolean;
    /**
     * Whether the Shift key is currently pressed.
     */
    shiftKey: boolean;
    /**
     * Whether the Alt key is currently pressed.
     *
     * On macOS this is the Option key.
     */
    altKey: boolean;
    /**
     * Whether the Meta key is currently pressed.
     *
     * On macOS this is the Command key.
     * On Windows this is the Windows key.
     */
    metaKey: boolean;
}
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