The SetCommTimeouts function sets the time-out parameters for all read and write operations on a specified communications device.
BOOL SetCommTimeouts(
HANDLE hFile, // handle to comm device
LPCOMMTIMEOUTS lpCommTimeouts // pointer to comm time-out structure
);
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, call GetLastError.
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Requires version 1.0 or later.
Header: Declared in winbase.h.
Import Library: Use kernel32.lib.
Communications Overview, Communication Functions, COMMTIMEOUTS, GetCommTimeouts, ReadFile, ReadFileEx, WriteFile, WriteFileEx