public static int GetHashery(this msExcel.Workbook workbook)
{
IntPtr punk = IntPtr.Zero;
if (workbook == null)
{
return(punk.ToInt32());
}
try
{
punk = Marshal.GetIUnknownForObject(workbook);
return(punk.ToInt32());
}
finally
{
//Release to decrease ref count
Marshal.Release(punk);
}
}
public static long GetHashery(this msExcel.Workbook workbook)
{
if (workbook == null)
{
throw new ArgumentNullException("workbook");
}
IntPtr pUnknown = IntPtr.Zero;
try
{
pUnknown = Marshal.GetIUnknownForObject(workbook);
return(pUnknown.ToInt64());
}
finally
{
// GetIUnknownForObject causes AddRef.
if (pUnknown != IntPtr.Zero)
{
Marshal.Release(pUnknown);
}
}
}
