Sets the I/O direction of specified device.
Ret = DioDmSetDirection ( Id , Direction )
Id
[ VB.NET: Short ] [ C, C++: short ] [ C#: short ] [ Python: ctypes.c_short
]
Specify the device ID retrieved from DioInit.
Directoin
[ VB.NET: Short ] [ C, C++: short ] [ C#: short ] [ Python: ctypes.c_short
]
Specify the I/O direction.
Definition |
Value [Dec] |
Description |
PI_32 |
1 |
32-bit input |
PO_32 |
2 |
32-bit output |
PIO_1616 |
3 |
16-bit input and 16-bit output |
Ret [ VB.NET: Integer ] [ C, C++: long ] [ C#: int ] [ Python: ctypes.c_long ]
Definition |
Value [Dec] |
Description |
DIO_ERR_SUCCESS |
0 |
Normal completed. |
DIO_ERR_SYS_RECOVERED_FROM_STANDBY |
7 |
Execute DioResetDevice function because the device has recovered from standby mode. |
DIO_ERR_DLL_INVALID_ID |
10001 |
Invalid ID specified. |
DIO_ERR_DLL_CALL_DRIVER |
10002 |
Not call the driver (Failure on DEVICE I/O CONTROL). |
DIO_ERR_SYS_NOT_SUPPORTED |
20001 |
This board couldn't use this function. |
DIO_ERR_SYS_IODIRECTION |
20500 |
Direction value is out of range. |
The others (See also: Details of Error Code)
The initial value of I/O direction is PI_32.
It is necessary to use this function to make the application operation regular.
Uses the device by 32-bit input.
VB.NET |
Dim Ret As Integer |
C, C++ |
long Ret; |
C# |
int Ret; |
Python |
Ret = ctypes.c_long() |