TSI Incorporated 8587A, Руководство по эксплуатации и обслуживанию

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C-6 Model 8587A Laser Photometer
DeviceOpen
To open a connection to the device, use the DeviceOpen() method.
HANDLE DeviceOpen( PSTR szDeviceName,
LPDWORD dwRetErrorVal,
BOOL bTerminal = FALSE);
Parameter Description Type
szDeviceName
The szDeviceName parameter is the name
of the device to be opened. The device
name is returned from the ListDevices()
method.
PSTR
dwRetErrorVal The dwRetErrorVal parameter is a Win32
error code returned from the Windows API. A
successful DeviceOpen returns
ERROR_SUCCESS (0x0000). Long Pointer to a DWORD
bTerminal The size in bytes of the data being
transferred to the device. This value should
be set to TRUE when opening a connection
to a Model 8587A Laser Photometer. BOOLEAN
Return value:
This method returns a handle to the open device. A successful
DeviceOpen returns a handle value that is not equal to
INVALID_HANDLE_VALUE (0xFFFF).
Example Code:
HANDLE hDeviceHandle = INVALID_DEVICE_HANDLE;
DWORD dwErrorCode = ERROR_IO_DEVICE;
hDeviceHandle = DeviceOpen(deviceList[0], &dwErrorCode, TRUE);