Sensoray 812 Windows - Manual (Page 7)

the 812 board. The Demo application is written in C# Windows Forms .NET and provides a wrapper to
the “C” DLL in the file s812.cs.
SDK Function Reference
All API functions are declared using the following definition and the __stdcall calling
convention:
#define MID812_API extern "C" __declspec(dllimport)
MID812_API HANDLE S812_OpenBoard(int devid);
Must be called before any other API functions are called to open the SDK.
Parameters
devid
device id in the system (use 0 with a single board installed).
Returns
0 on success, negative value if error (see mid812types.h for error codes list).
MID812_API int S812_CloseBoard(int devid);
Must be called before application terminates for proper clean-up of the SDK and SDK objects.
Parameters
devid
device id in the system (use 0 with a single board installed).
Returns
0 on success, negative value if error (see mid812types.h for error codes list).
MID812_API int S812_GetNumDevices(int *num_devices);
Enumerates all plugged in 812s in the system.
Parameters
num_devices
Returns devices found in system.
Returns
0 if success, negative if error.
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