public MultiClampCommander(uint serialNumber, uint channel, IClock clock)
{
SerialNumber = serialNumber;
Channel = channel;
Clock = clock;
UInt32 lParam = MulticlampInterop.MCTG_Pack700BSignalIDs(this.SerialNumber, this.Channel); // Pack the above two into an UInt32
int result = Win32Interop.PostMessage(Win32Interop.HWND_BROADCAST, MulticlampInterop.MCTG_OPEN_MESSAGE, (IntPtr)Win32Interop.MessageEvents.WindowHandle, (IntPtr)lParam);
Win32Interop.MessageEvents.WatchMessage(Win32Interop.WM_COPYDATA, (sender, evtArgs) =>
{
// WM_COPYDATA LPARAM is a pointer to a COPYDATASTRUCT structure
Win32Interop.COPYDATASTRUCT cds;
cds = (Win32Interop.COPYDATASTRUCT)
Marshal.PtrToStructure(evtArgs.Message.LParam, typeof(Win32Interop.COPYDATASTRUCT));
// WM_COPYDATA structure (COPYDATASTRUCT)
// dwData -- RegisterWindowMessage(MCTG_REQUEST_MESSAGE_STR)
// cbData -- size (in bytes) of the MC_TELEGRAPH_DATA structure being sent
// lpData -- MC_TELEGRAPH_DATA*
MulticlampInterop.MC_TELEGRAPH_DATA mtd;
mtd = (MulticlampInterop.MC_TELEGRAPH_DATA)Marshal.PtrToStructure(cds.lpData, typeof(MulticlampInterop.MC_TELEGRAPH_DATA));
var md = new MulticlampInterop.MulticlampData(mtd);
OnParametersChanged(md);
});
}
void Dispose(bool disposing)
{
if (!this._disposed)
{
UInt32 lParam = MulticlampInterop.MCTG_Pack700BSignalIDs(this.SerialNumber, this.Channel); // Pack the above two into an UInt32
int result = Win32Interop.PostMessage(Win32Interop.HWND_BROADCAST, MulticlampInterop.MCTG_CLOSE_MESSAGE, (IntPtr)Win32Interop.MessageEvents.WindowHandle, (IntPtr)lParam);
// Note disposing has been done.
_disposed = true;
}
}
public MulticlampParametersChangedArgs(IClock clock, MulticlampInterop.MulticlampData data)
: base(clock)
{
this.Data = data;
}
private static void CheckScaleFactorUnits(MulticlampInterop.MulticlampData deviceParams, MulticlampInterop.ScaleFactorUnits[] allowedScaleFactorUnits)
{
if (!allowedScaleFactorUnits.Contains(deviceParams.ScaleFactorUnits))
throw new MulticlampDeviceException(deviceParams.ScaleFactorUnits + " is not an allowed unit conversion for scaled output mode.");
}
public Measurement Convert(Measurement incoming, string outgoingUnits, MulticlampInterop.MulticlampData deviceParams)
{
MulticlampInterop.ScaleFactorUnits[] allowedScaleFactorUnits;
switch (deviceParams.ScaledOutputSignal)
{
case MulticlampInterop.SignalIdentifier.AXMCD_OUT_PRI_VC_GLDR_I_MEMB:
case MulticlampInterop.SignalIdentifier.AXMCD_OUT_PRI_IC_GLDR_I_CMD_MEMB:
case MulticlampInterop.SignalIdentifier.AXMCD_OUT_PRI_IC_GLDR_I_CMD_SUMMED:
allowedScaleFactorUnits = new[] {
MulticlampInterop.ScaleFactorUnits.V_A,
MulticlampInterop.ScaleFactorUnits.V_mA,
MulticlampInterop.ScaleFactorUnits.V_nA,
MulticlampInterop.ScaleFactorUnits.V_uA,
MulticlampInterop.ScaleFactorUnits.V_pA
};
CheckScaleFactorUnits(deviceParams, allowedScaleFactorUnits);
return null;
case MulticlampInterop.SignalIdentifier.AXMCD_OUT_PRI_IC_GLDR_V_MEMBx10:
case MulticlampInterop.SignalIdentifier.AXMCD_OUT_PRI_IC_GLDR_V_MEMBx100:
case MulticlampInterop.SignalIdentifier.AXMCD_OUT_PRI_VC_GLDR_V_CMD_EXT:
case MulticlampInterop.SignalIdentifier.AXMCD_OUT_PRI_VC_GLDR_V_CMD_MEMB:
case MulticlampInterop.SignalIdentifier.AXMCD_OUT_PRI_VC_GLDR_V_CMD_SUMMED:
allowedScaleFactorUnits = new[] {
MulticlampInterop.ScaleFactorUnits.V_mV,
MulticlampInterop.ScaleFactorUnits.V_uV,
MulticlampInterop.ScaleFactorUnits.V_V
};
CheckScaleFactorUnits(deviceParams, allowedScaleFactorUnits);
return null;
default:
throw new ArgumentOutOfRangeException("Unsupported ScaledOutputSignal mode: " + deviceParams.ScaledOutputSignal);
}
}
private void OnParametersChanged(MulticlampInterop.MulticlampData data)
{
lock (_eventLock)
{
if (ParametersChanged != null)
{
ParametersChanged(this, new MulticlampParametersChangedArgs(Clock, data));
}
}
}
