GetRS232ErrorString

char *GetRS232ErrorString (int errorNum);

Purpose

Converts the error number returned by an RS-232 Library function into a meaningful error message.

If errorNum is -1 (Unknown System Error), GetRS232ErrorString calls the Windows SDK GetLastError function and translates the return value to a Windows message string.

Parameters

Input
Name Type Description
errorNum integer Error code returned by an RS-232 Library function.

Return Value

Name Type Description
message string The meaningful error message for the error number.