+(defun notmuch-tree-inherit-from-message-pane (sym)
+ "Return value of SYM in message-pane if open, or tree-pane if not"
+ (if (window-live-p notmuch-tree-message-window)
+ (with-selected-window notmuch-tree-message-window
+ (symbol-value sym))
+ (symbol-value sym)))
+