setup interrupt not working wce 7

Other Parts Discussed in Thread: DM3730

#define IRQ_BUTTON    101, also tried 55 with same result

when I set the mode to GPIO_INT_LOW, the interrupt constantly comes in and won't stop(even when I pull the pin high)

when I set the mode to any other mode (high, lowhigh, or highlow), the interrupt never triggers.

I am using Variscite's DVK board  with the DM3730 cpu under WinCE Compact 7

I have errors coming  back from all those GPIOxxx function

    gButtonsIntrEvent = CreateEvent(NULL, FALSE, FALSE, NULL);

    // Open GPIO driver
    hGPIO = GPIOOpen();
    if (hGPIO == NULL)
        {
        RETAILMSG(1, (TEXT("ERROR: PddInitializeHardware: Failed open GPIO device driver\r\n")));
        return (0);
        }

    // Setup IRQ for input mode, falling edge detect, debounce enable
    //GPIOSetMode(hGPIO, IRQ_BUTTON, GPIO_DIR_INPUT|GPIO_INT_LOW); //this have constant trigger, even if we pull it high. other trigger can't be triggered no matter what
//    GPIOSetMode(hGPIO, IRQ_BUTTON, GPIO_DIR_INPUT|GPIO_INT_HIGH_LOW|GPIO_DEBOUNCE_ENABLE);
    GPIOSetMode(hGPIO, IRQ_BUTTON, GPIO_DIR_INPUT|GPIO_INT_LOW_HIGH|GPIO_DEBOUNCE_ENABLE);
//    GPIOSetMode(hGPIO, IRQ_BUTTON, GPIO_DIR_INPUT|GPIO_INT_HIGH);
//    GPIOPullup(hGPIO, IRQ_BUTTON,GPIO_PULLUP_ENABLE);

    DWORD ibit=0x55aa55aa;
    ibit=GPIOGetMode(hGPIO, IRQ_BUTTON);
    RETAILMSG(1, (TEXT("*********** BTN: get mode=%d\r\n"),ibit));

    if (!GPIOInterruptInitialize(hGPIO, IRQ_BUTTON,    &SysIntrValue, gButtonsIntrEvent)) //this does GPIOGetSystemIrq, IOCTL_HAL_REQUEST_SYSINTR, and InterruptInitialize
    {
        RETAILMSG(1, (TEXT("Couldn't Initialize interrupt GPIOInterruptInitialize.\r\n")));
        return 0;
    }

    // Set the interrupt as a wake-up source
    if (!GPIOInterruptWakeUp(hGPIO, IRQ_BUTTON, SysIntrValue, TRUE))
    {
        RETAILMSG(1, (TEXT("ERROR: BTN: Couldn't get valid SysIntr.\r\n")));
        return(0);
    }

    //SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_NORMAL);

    RETAILMSG(1, (TEXT("%s +BtnButton IST\r\n"),DRVR_NAME));
    while (1)
    {
        WaitForSingleObject(gButtonsIntrEvent, INFINITE);
        Sleep(10);
        RETAILMSG(1, (TEXT("%s got intr\r\n"),DRVR_NAME));
//        InterruptDone(SysIntrValue);
        GPIOInterruptDone(hGPIO, IRQ_BUTTON, SysIntrValue); //this seems to be same as above; InterruptDone()
    }   // end while