Retrieves the state of DSR signal.
BOOL FtVspcGetDsr( FTVSPCHANDLE hPort, BOOL *lpbDsr );
hPort
[in] Port handle. Refer to FtVspcAttach.
lpbDsr
[out] A pointer to the variable where the state of DSR signal is returned.
If the function succeeds, the return value is nonzero. Use FtVspcGetLastError to get the error code (FtVspc_ErrorCode).
| ftvspcErrorFailed | 1 | The operation has not been completed. |
|---|---|---|
| ftvspcErrorInvalidParameter | 2 | Invalid parameter. |