Init and exit processing are common processing that are necessary for
all programming.
Init processing is performed by function AioInit.
This function creates driver file and secures necessary memory.
There are 2 parameters in function AioInit.
The first parameter is DeviceName.
DeviceName is a character string such as "AIO000" which is registered
in Device Manager or the utility.
The second parameter is ID.
ID is a number passed from driver, and this ID is required to use the following
functions.
If function terminates normally, the return value (Ret) is 0.
If function execution failed, a value other than 0 is returned.
Exit processing is performed by function AioExit.
This function stops the device and driver operation, releases all the resources
used by memory and threads, etc.
Please make sure to execute this function before terminating application.
Otherwise, the resources used by driver may remain unopened.
Perform the init and exit processing for device "AIO000"
Visual Basic .NET
Dim Ret As Integer
Dim Id As Short
Ret = AioInit( "AIO000" , Id )
If Ret <> 0 Then
System.Diagnostics.Debug.WriteLine("Error
occurred in AioInit " & Ret)
End If
Ret = AioExit( Id )
If Ret <> 0 Then
System.Diagnostics.Debug.WriteLine("Error
occurred in AioExit " & Ret)
End If
Visual C#
int Ret;
short Id;
Ret = aio.Init ( "AIO000" , out Id );
if(Ret != 0){
System.Diagnostics.Debug.WriteLine("Error
occurred in AioInit " + Ret.ToString());
}
Ret = aio.Exit ( Id );
if(Ret != 0){
System.Diagnostics.Debug.WriteLine("Error
occurred in AioExit " + Ret.ToString());
}
Visual C++ (MFC)
long Ret;
short Id;
Ret = AioInit( "AIO000" , &Id );
if(Ret != 0){
printf("Error occurred in AioInit %d\n",
Ret);
}
Ret = AioExit( Id );
if(Ret != 0){
printf("Error occurred in AioExit %d\n",
Ret);
}
Python
Ret = ctypes.c_long()
Id = ctypes.c_short()
Ret.value = caio.AioInit ( b"AIO000" , ctypes.byref(Id))
if Ret.value != 0:
print(f"Error occurred in AioInit {Ret.value}\n")
Ret.value = caio.AioExit ( Id )
if Ret.value != 0:
print(f"Error occurred in AioExit {Ret.value}\n")