DioGetMaxCountChannels

Function

Retrieves the total number of count channels of the device.

Format

Ret = DioGetMaxCountChannels ( Id , ChannelNum )

Parameters

Id [ VB.NET: Short ] [ C, C++: short ] [ C#: short ] [ Python: ctypes.c_short ]
Specify the device ID retrieved from DioInit.

ChannelNum [ VB.NET: Short ] [ C, C++: short * ] [ C#: out short ] [ Python: ctypes.POINTER(ctypes.c_short) ]
Specify the address of the variable to obtain the number of channels.

Return Value

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_DLL_BUFF_ADDRESS

10101

Invalid data buffer address

The others (See also: Details of Error Code)

Example

Retrieves the total number of count channels of the device.

VB.NET

Dim Ret As Integer
Dim ChannelNum As Short

Ret = DioGetMaxCountChannels( Id , ChannelNum )
 

C, C++

long Ret;
short ChannelNum;

Ret = DioGetMaxCountChannels( Id , &ChannelNum );
 

C#

int Ret;
short ChannelNum;

Ret = DioGetMaxCountChannels( Id , out ChannelNum );
 

Python

Ret = ctypes.c_long()
ChannelNum = ctypes.c_short()

Ret.value = cdio.DioGetMaxCountChannels( Id , ctypes.byref(ChannelNum) )
 

See Also

None