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IOCTL_SERIAL_GET_COMMSTATUS (Windows CE 5.0)

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This IOCTL clears pending communications errors and returns the current communication status. The DeviceIoControl function executes this IOCTL.

Parameters

  • dwOpenData
    [in] Handle returned from a call to the COM_Open function.
  • dwCode
    [in] Set to this IOCTL: IOCTL_SERIAL_GET_COMMSTATUS.
  • pBufIn
    Ignored.
  • dwLenIn
    Ignored.
  • pBufOut
    [out] Pointer to a SERIAL_DEV_STATUS structure to contain the returned status information.
  • dwLenOut
    [out] Greater than or equal to sizeof(SERIAL_DEV_STATUS).
  • pdwActualOut
    [out] Pointer to a DWORD variable to return the length of the returned data. Set to sizeof(SERIAL_DEV_STATUS) if there is no error.

Return Values

Returns TRUE if successful. Returns FALSE otherwise. To get extended error information, call GetLastError.

Requirements

OS Versions: Windows CE 1.0 and later.
Header: Pegdser.h.

See Also

COM_Open | DeviceIoControl | SERIAL_DEV_STATUS

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