hwndDeskTop (HWND) - input

      Desktop-window handle.

      HWND_DESKTOP

        The desktop window
      Other
        Specified desktop window.

      flStyle (ULONG) - input

        Alarm style.

        Used to signify different situations to the operator.

        The duration and frequency of the alarms can be changed by the WinSetSysValue function. The alarm frequency is defined to be in the range 0x0025 through 0x7FFF. The alarm is not generated if system value SV_ALARM is set to FALSE. The alarms are dependent on the device capability. Different alarms are selected by use of these values:

        WA_WARNING

        WA_NOTE
        WA_ERROR

        rc (BOOL) - returns

          Alarm-generated indicator.

          TRUE

            Alarm generated
          FALSE
            Alarm not generated.

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