TwinCAT I/O To Ring 3 Applications: Function Reference

TCatIoOpen

The TCatIoOpen function opens a connection to the TwinCAT I/O Server. Before any I/O processing TCatIoOpen should be called.

 

LRESULT TCatIoOpen();

 


Parameters

None


Return Values

If the function fails, the return value is -1.


Remarks

TCatIoOpen allocates memory and necessary system resources


QuickInfo

 For Windows NT:

    Windows NT Version: Requires version 4.0 or later.

    TwinCAT: Requires version 2.5 or later.

    Header: Declared in TCatIoApi.h.

    Import Library: Use TCatIoDrv.lib.

 For Windows CE:

    Windows CE Version: Requires version 4.2 or later.

    Image Version: Requires version 1.90 or later.

    Header: Declared in TCatIoW32Api.h.

    Import Library: Use TCatIoDrvW32.lib.

See Also

TCatIoClose ()

 

Note:

Please note the system requirements.