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IOCTL_SERIAL_SET_QUEUE_SIZE (Windows CE 5.0)

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This IOCTL sets the queue sizes of a communications device. 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_SET_QUEUE_SIZE.
  • pBufIn
    [in] Pointer to a SERIAL_QUEUE_SIZES structure.
  • dwLenIn
    [in] Set to sizeof(SERIAL_QUEUE_SIZES).
  • pBufOut
    Ignored.
  • dwLenOut
    Ignored.
  • pdwActualOut
    Ignored.

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_IOControl | COM_Open | DeviceIoControl | SERIAL_QUEUE_SIZES

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