Non working main

WaitPort(WIN_PTR->UserPort);
edwsig=(1L<<WIN_PTR->UserPort->mp_SigBit);

while(DONE=TRUE)
{
sigs=SetSignal(0L,0L);
if (sigs & edwsig)
{
while (NULL != (edw_msg = (struct IntuiMessage *)GetMsg(WIN_PTR->UserPort)))
{
edwmsgport=WaitPort (WIN_PTR->UserPort);

switch (edw_msg->Class)
    {
        case IDCMP_CLOSEWINDOW:
        printf("Close Window Press");
        DONE=TRUE;
        break;
        case IDCMP_ACTIVEWINDOW:
        case IDCMP_MOUSEBUTTONS:
        DisplayBeep(SCR_PTR);
    }

ReplyMsg((struct Message*)edw_msg);
};
};
};