process.py 文件源码

def is_critical(self):
        """Determines if process is 'critical' or not, so we can prevent
           terminating it
        """
        if not self.h_process:
            self.open()

        if self.critical:
            return True

        NT_SUCCESS = lambda val: val >= 0

        val = c_ulong(0)
        retlen = c_ulong(0)
        ret = NTDLL.NtQueryInformationProcess(self.h_process, 29, byref(val), sizeof(val), byref(retlen))
        if NT_SUCCESS(ret) and val.value:
            return True
        return False