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Virtual Serial Port Control API >
ActiveX Component Reference > FTVSPCControl Class > Methods > CreatePortOverlapped
Creates virtual serial port over existing COM port.
| Visual Basic | Sub CreatePortOverlapped(PortName As String, Alias As String)
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| Delphi | procedure CreatePortOverlapped(PortName: String, Alias: String);
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| Visual C++ (MFC) | void CreatePortOverlapped(LPCTSTR PortName, LPCTSTR Alias);
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| Visual C++ (#import) | void CreatePortOverlapped(_bstr_t PortName, _bstr_t Alias);
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PortName
[in] The name of virtual serial port (e.g. "COM1", "VSP25", "SERPORT10" etc). Names "COM0", "COM4294967295" and "LPTx" are prohibited.
Alias
[in] Alias name for existing COM port. You still will be able to open existing COM port using this alias name. The string is an MS-DOS path (e.g. PORT1, COM100).
TRUE - the port has been created successfully, FALSE otherwise.
The method may throw exception. Use GetLastError method to get the error code.
| ftvspcErrorFailed | 1 | The operation has not been completed. |
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| ftvspcErrorInvalidParameter | 2 | Invalid parameter. |
| ftvspcErrorPortAlreadyExists | 100 | This port already exists. |