3ds max pymxs 判断max窗口是否置顶

import ctypes
from pymxs import runtime as rt

user32 = ctypes.windll.user32
GA_ROOTOWNER = 3

def isMaxForeground():
    fgw = user32.GetForegroundWindow()
    fgw_root = user32.GetAncestor(fgw, GA_ROOTOWNER)
    
    return fgw_root == rt.windows.getMAXHWND()

在maxscript中，获取user32是这样实现的：user32 = (python.import ctypes).windll.user32