Retrieves the number of data that are transferred
from the user memory.
This function can only be used when the transfer mode of the conversion
data that is set by AioSetAoTransferMode is User buffer mode.
It cannot be used when the transfer mode of the conversion data is Device
buffer mode.
Ret = AioGetAoTransferCount ( Id , AoTransferCount )
Id
[ VB.NET : Short ] [ C, C++ : short ] [ C# : short ] [ Python : ctypes.c_short
]
Specifies the ID retrieved from AioInit function.
AoTransferCount
[ VB.NET : Integer ] [ C, C++ : long * ] [ C# : out int ] [ Python : ctypes.POINTER(ctypes.c_long)
]
Specifies the address of the variable that stores the transfer count.
Ret [ VB.NET : Integer ] [ C, C++ : long ] [ C# : int ] [ Python : ctypes.c_long ]
Return values |
Content |
0 |
Normality completion |
7 |
Execute AioResetDevice function because the device has recovered from standby mode |
10001 |
Invalid
Id was specified |
10002 |
AIO
driver can't be called |
13680 |
Pointer
to AoTransferCount is NULL |
20001 |
This function can't be used by this device |
20003 |
Can
not use because another process is using the device |
In all devices, AoTransferCount = 0
Resets this value to 0 by calling AioResetAoMemory function.
In the Ring memory format, return 0 to the
transfer count at the gap of memory.
This function can be executed even if the device is in operation.
This function cannot be used on devices without the analog output function.
Retrieves the number of data that are transferred from the user memory.
VB.NET |
Dim
Ret As Integer |
C, C++ |
long
Ret; |
C# |
int
Ret; |
Python |
Ret
= ctypes.c_long() |