# Signal enumeration
        
            wx.SIGNONE  # verify if the process exists under Unix
            wx.SIGHUP  
            wx.SIGINT  
            wx.SIGQUIT 
            wx.SIGILL  
            wx.SIGTRAP 
            wx.SIGABRT
            wx.SIGEMT
            wx.SIGFPE
            wx.SIGKILL  # forcefully kill, dangerous!
            wx.SIGBUS
            wx.SIGSEGV
            wx.SIGSYS
            wx.SIGPIPE
            wx.SIGALRM
            wx.SIGTERM  # terminate the process gently