public unsafe static int TryExcelImpl(int xlFunction, out object result, params object[] parameters)
{
if (XlAddIn.XlCallVersion < 12)
{
return(TryExcelImpl4(xlFunction, out result, parameters));
}
// Else Excel 12+
if (Excel12v == null)
{
try
{
IntPtr hModuleProcess = GetModuleHandle(null);
IntPtr pfnExcel12v = GetProcAddress(hModuleProcess, "MdCallBack12");
Excel12v = (Excel12vDelegate)Marshal.GetDelegateForFunctionPointer(pfnExcel12v, typeof(Excel12vDelegate));
}
catch
{
}
if (Excel12v == null)
{
result = null;
return(32); /*XlCall.XlReturn.XlReturnFailed*/
}
}
return(TryExcelImpl12(xlFunction, out result, parameters));
}
internal unsafe static void SetExcel12EntryPt(IntPtr pfnExcel12v)
{
Debug.Print("SetExcel12EntryPt called.");
FetchExcel12EntryPt();
if (Excel12v == null && pfnExcel12v != null)
{
Debug.Print("SetExcel12EntryPt - setting delegate.");
Excel12v = (Excel12vDelegate)Marshal.GetDelegateForFunctionPointer(pfnExcel12v, typeof(Excel12vDelegate));
Debug.Print("SetExcel12EntryPt - setting delegate OK? - " + (Excel12v != null).ToString());
}
}
private unsafe static void FetchExcel12EntryPt()
{
if (Excel12v == null)
{
try
{
IntPtr hModuleProcess = GetModuleHandle(null);
IntPtr pfnExcel12v = GetProcAddress(hModuleProcess, "MdCallBack12");
if (pfnExcel12v != IntPtr.Zero)
{
Excel12v = (Excel12vDelegate)Marshal.GetDelegateForFunctionPointer(pfnExcel12v, typeof(Excel12vDelegate));
}
}
catch
{
}
}
}
private static unsafe void FetchExcel12EntryPt()
{
if (Excel12v == null)
{
try
{
IntPtr hModuleProcess = GetModuleHandle(null);
IntPtr pfnExcel12v = GetProcAddress(hModuleProcess, "MdCallBack12");
if (pfnExcel12v != IntPtr.Zero)
{
Excel12v = (Excel12vDelegate)Marshal.GetDelegateForFunctionPointer(pfnExcel12v, typeof(Excel12vDelegate));
}
}
catch
{
}
}
}
internal static unsafe void SetExcel12EntryPt(IntPtr pfnExcel12v)
{
Debug.Print("SetExcel12EntryPt called.");
FetchExcel12EntryPt();
if (Excel12v == null && pfnExcel12v != null)
{
Debug.Print("SetExcel12EntryPt - setting delegate.");
Excel12v = (Excel12vDelegate)Marshal.GetDelegateForFunctionPointer(pfnExcel12v, typeof(Excel12vDelegate));
Debug.Print("SetExcel12EntryPt - setting delegate OK? - " + (Excel12v != null).ToString());
}
}