public static void CloseLibrary()
{
if (ExtIO._isHWStarted)
{
ExtIO.StopHW();
}
if (ExtIO._isHWInit)
{
ExtIO.CloseHW();
}
if (!(ExtIO._dllHandle == IntPtr.Zero))
{
ExtIO.logInfo("CloseLibrary()");
try
{
ExtIO.FreeLibrary(ExtIO._dllHandle);
}
catch (Exception ex)
{
ExtIO.logInfo("FreeLibrary: " + ex.Message);
}
ExtIO.logResult("FreeLibrary: ");
ExtIO._dllHandle = IntPtr.Zero;
}
}
public static void UseLibrary(string fileName)
{
if (ExtIO._dllHandle != IntPtr.Zero)
{
ExtIO.CloseLibrary();
}
ExtIO.logInfo("UseLibrary(), dll=" + fileName);
try
{
ExtIO._dllHandle = ExtIO.LoadLibrary(fileName);
}
catch (Exception ex)
{
ExtIO.logInfo("LoadLibrary: " + ex.Message);
}
ExtIO.logResult("LoadLibrary:");
if (ExtIO._dllHandle == IntPtr.Zero)
{
ExtIO.logInfo("LoadLibrary(), Unable to load DLL file: " + fileName);
throw new Exception("Unable to load ExtIO library " + fileName);
}
ExtIO._dllName = fileName;
ExtIO._initHW = null;
ExtIO._openHW = null;
ExtIO._startHW = null;
ExtIO._stopHW = null;
ExtIO._closeHW = null;
ExtIO._setHWLO = null;
ExtIO._tuneChanged = null;
ExtIO._getHWLO = null;
ExtIO._getHWSR = null;
ExtIO._getStatus = null;
ExtIO._showGUI = null;
ExtIO._hideGUI = null;
ExtIO._setCallback = null;
IntPtr procAddress = ExtIO.GetProcAddress(ExtIO._dllHandle, "InitHW");
if (procAddress != IntPtr.Zero)
{
ExtIO._initHW = (dInitHW)Marshal.GetDelegateForFunctionPointer(procAddress, typeof(dInitHW));
}
procAddress = ExtIO.GetProcAddress(ExtIO._dllHandle, "OpenHW");
if (procAddress != IntPtr.Zero)
{
ExtIO._openHW = (dOpenHW)Marshal.GetDelegateForFunctionPointer(procAddress, typeof(dOpenHW));
}
procAddress = ExtIO.GetProcAddress(ExtIO._dllHandle, "StartHW");
if (procAddress != IntPtr.Zero)
{
ExtIO._startHW = (dStartHW)Marshal.GetDelegateForFunctionPointer(procAddress, typeof(dStartHW));
}
procAddress = ExtIO.GetProcAddress(ExtIO._dllHandle, "StopHW");
if (procAddress != IntPtr.Zero)
{
ExtIO._stopHW = (dStopHW)Marshal.GetDelegateForFunctionPointer(procAddress, typeof(dStopHW));
}
procAddress = ExtIO.GetProcAddress(ExtIO._dllHandle, "CloseHW");
if (procAddress != IntPtr.Zero)
{
ExtIO._closeHW = (dCloseHW)Marshal.GetDelegateForFunctionPointer(procAddress, typeof(dCloseHW));
}
procAddress = ExtIO.GetProcAddress(ExtIO._dllHandle, "SetCallback");
if (procAddress != IntPtr.Zero)
{
ExtIO._setCallback = (dSetCallback)Marshal.GetDelegateForFunctionPointer(procAddress, typeof(dSetCallback));
}
procAddress = ExtIO.GetProcAddress(ExtIO._dllHandle, "SetHWLO");
if (procAddress != IntPtr.Zero)
{
ExtIO._setHWLO = (dSetHWLO)Marshal.GetDelegateForFunctionPointer(procAddress, typeof(dSetHWLO));
}
procAddress = ExtIO.GetProcAddress(ExtIO._dllHandle, "TuneChange");
if (procAddress != IntPtr.Zero)
{
ExtIO._tuneChanged = (dTuneChanged)Marshal.GetDelegateForFunctionPointer(procAddress, typeof(dTuneChanged));
}
procAddress = ExtIO.GetProcAddress(ExtIO._dllHandle, "GetHWLO");
if (procAddress != IntPtr.Zero)
{
ExtIO._getHWLO = (dGetHWLO)Marshal.GetDelegateForFunctionPointer(procAddress, typeof(dGetHWLO));
}
procAddress = ExtIO.GetProcAddress(ExtIO._dllHandle, "GetHWSR");
if (procAddress != IntPtr.Zero)
{
ExtIO._getHWSR = (dGetHWSR)Marshal.GetDelegateForFunctionPointer(procAddress, typeof(dGetHWSR));
}
procAddress = ExtIO.GetProcAddress(ExtIO._dllHandle, "GetTune");
if (procAddress != IntPtr.Zero)
{
ExtIO._getTune = (dGetTune)Marshal.GetDelegateForFunctionPointer(procAddress, typeof(dGetTune));
}
procAddress = ExtIO.GetProcAddress(ExtIO._dllHandle, "GetStatus");
if (procAddress != IntPtr.Zero)
{
ExtIO._getStatus = (dGetStatus)Marshal.GetDelegateForFunctionPointer(procAddress, typeof(dGetStatus));
}
procAddress = ExtIO.GetProcAddress(ExtIO._dllHandle, "ShowGUI");
if (procAddress != IntPtr.Zero)
{
ExtIO._showGUI = (dShowGUI)Marshal.GetDelegateForFunctionPointer(procAddress, typeof(dShowGUI));
}
procAddress = ExtIO.GetProcAddress(ExtIO._dllHandle, "HideGUI");
if (procAddress != IntPtr.Zero)
{
ExtIO._hideGUI = (dHideGUI)Marshal.GetDelegateForFunctionPointer(procAddress, typeof(dHideGUI));
}
if (ExtIO._initHW != null && ExtIO._openHW != null && ExtIO._startHW != null && ExtIO._setHWLO != null && ExtIO._getStatus != null && ExtIO._setCallback != null && ExtIO._stopHW != null && ExtIO._closeHW != null)
{
return;
}
ExtIO.FreeLibrary(ExtIO._dllHandle);
ExtIO._dllHandle = IntPtr.Zero;
ExtIO.logInfo("LoadLibrary(), ExtIO DLL is not valid, not all entries found.");
throw new ApplicationException("ExtIO DLL is not valid, not all entries found.");
}
