/// <summary>
/// Opens device
/// </summary>
/// <param name="DeviceName">fullpath to the device</param>
/// <returns>-1 on error, handle otherwise</returns>
public int CreateFile(string DeviceName)
{
HidHandle = DllImports.CreateFile(DeviceName,
DllImports.GENERIC_READ | DllImports.GENERIC_WRITE,
DllImports.FILE_SHARE_READ | DllImports.FILE_SHARE_WRITE,
0, DllImports.OPEN_EXISTING, 0, 0);
return((HidHandle == -1) ? 0 : 1);
}
/// <summary>
/// Gets class devs
/// </summary>
/// <returns>Handle to the device info object</returns>
public int SetupDiGetClassDevs()
{
DllImports.HidD_GetHidGuid(ref _guid);
hDevInfo = DllImports.SetupDiGetClassDevs(ref _guid,
IntPtr.Zero,
IntPtr.Zero,
DllImports.DIGCF_INTERFACEDEVICE | DllImports.DIGCF_PRESENT);
return(hDevInfo);
}
/// <summary>
/// Closes device
/// </summary>
public int CloseFile()
{
if (HidHandle != -1)
{
DllImports.CloseHandle(HidHandle);
HidHandle = -1;
}
return(1);
}
/// <summary>
/// Gets device interface detail
/// </summary>
public int SetupDiGetDeviceInterfaceDetail(ref int requiredSize, int deviceInterfaceDetailDataSize)
{
int retVal = DllImports.SetupDiGetDeviceInterfaceDetail(
hDevInfo,
ref _deviceInterfaceData,
IntPtr.Zero,
deviceInterfaceDetailDataSize,
ref requiredSize,
IntPtr.Zero);
return(retVal);
}
/// <summary>
/// Enumerates device interfaces
/// </summary>
public int SetupDiEnumDeviceInterfaces(int memberIndex)
{
_deviceInterfaceData = new DllImports.SP_DEVICE_INTERFACE_DATA();
_deviceInterfaceData.cbSize = Marshal.SizeOf(_deviceInterfaceData);
int retVal = DllImports.SetupDiEnumDeviceInterfaces(
hDevInfo,
0,
ref _guid,
memberIndex,
ref _deviceInterfaceData);
return(retVal);
}
/// <summary>
/// Reads data from the device
/// </summary>
public byte[] ReadFile(int inputReportByteLength)
{
int bytesRead = 0;
byte[] inBuffer = new byte[inputReportByteLength];
if (DllImports.ReadFile(HidHandle, inBuffer, inputReportByteLength, ref bytesRead, IntPtr.Zero))
{
byte[] outBuffer = new byte[bytesRead];
Array.Copy(inBuffer, outBuffer, bytesRead);
return(outBuffer);
}
return(null);
}
/// <summary>
/// Gets device interface detail
/// </summary>
public int SetupDiGetDeviceInterfaceDetailEx(ref int requiredSize, int deviceInterfaceDetailDataSize)
{
_deviceInterfaceDetailData = new DllImports.PSP_DEVICE_INTERFACE_DETAIL_DATA {
cbSize = 5
};
int retVal = DllImports.SetupDiGetDeviceInterfaceDetail(
hDevInfo,
ref _deviceInterfaceData,
ref _deviceInterfaceDetailData,
deviceInterfaceDetailDataSize,
ref requiredSize,
IntPtr.Zero);
DevicePathName = _deviceInterfaceDetailData.DevicePath;
return(retVal);
}
/// <summary>
/// Creates a duplicate of the handle
/// </summary>
public IntPtr DuplicateHandle(IntPtr sourceHandle)
{
IntPtr newHandle;
IntPtr currentProcess = DllImports.GetCurrentProcess();
bool result = DllImports.DuplicateHandle(
currentProcess,
sourceHandle,
currentProcess,
out newHandle,
0,
false,
DllImports.DUPLICATE_SAME_ACCESS);
if (!result)
{
return(IntPtr.Zero);
}
return(newHandle);
}
/// <summary>
/// Cancels synchronous io
/// </summary>
public void CancelSynchronousIo(IntPtr threadHandle)
{
DllImports.CancelSynchronousIo(threadHandle);
}
/// <summary>
/// Destroys the device info list
/// </summary>
public int SetupDiDestroyDeviceInfoList()
{
return(DllImports.SetupDiDestroyDeviceInfoList(hDevInfo));
}
/// <summary>
/// Frees parsed data
/// </summary>
public int InteropFreePreparsedData(int pPHIDP_PREPARSED_DATA)
{
return(DllImports.SetupDiDestroyDeviceInfoList(pPHIDP_PREPARSED_DATA));
}
/// <summary>
/// Gets raw data
/// </summary>
public int GetPreparsedData(int hObject, ref int preParsedData)
{
return(DllImports.HidD_GetPreparsedData(hObject, ref preParsedData));
}
/// <summary>
/// Gets the current thread handle
/// </summary>
public IntPtr GetCurrentThreadHandle()
{
IntPtr handle = DllImports.GetCurrentThread();
return(DuplicateHandle(handle));
}
/// <summary>
/// Gets HID caps
/// </summary>
public int GetCaps(int preParsedData)
{
HidCaps = new DllImports.HIDP_CAPS();
return(DllImports.HidP_GetCaps(preParsedData, ref HidCaps));
}
