All read functions may use a timeout mechanism while waiting for characters. If this time limit is exceeded the function abort reading. The timeout mechanism is only active, if the open flag V24_NON_BLOCK isn't specified.The timeout duration is specified by the parameter TenthOfSeconds. This value is given as a multiple of a thenth of a second.
The values returned are: V24_E_OK, V24_E_ILLHANDLE, V24_E_ILLTIMEOUT, V24_E_NOT_INIT.