interop

I read elsewhere (a response by "hazzen" here ) that .NET has "a binding for the entire Office suite outlined here that allows you to write COM-based methods that you can call from Office. It is intended for automation, but you can write any managed code you want and have Excel call into it." I'm interested in the same thing for Java. My present solution runs a standard Windows program that launches Java, whereupon any results are essentially sent to standard out and the intermediate program captures these and feeds the result back in to Excel - also using what amounts to std-out. There has to

This one is really starting to give me a headache :( I have an unmanaged DLL that I'm trying to interop with and it's not going well. The application will sometimes work...but most times, randomly through an AccessViolationException and crash horribly. I think I've narrowed it down to my mishandling of a single DllImport: C++ function: HTMLRENDERERDLL_REDIST_API void SetDataBuffer( int windowHandle, unsigned char* dataSource, int format, int stride, int totalBufferSize ); C# DllImport: [DllImport("MyDll.dll", ExactSpelling = true, CallingConvention = CallingConvention.Cdecl)] static private

What are the various ways I can achieve communication (like function calls) from a web application to a c++ application? I've developed the c++ application to do image processing and want to display and transmit the result in real time to a web-page displayed on a browser. Nothing will 'transmit to a web browser'. Web browsers have to ask, and then you can respond with the data you want to display. As per @The MYYN, you can just have the C++ code drop suitable files and the browser can ask for them. Or, you can set up some sort of webapp. If you use Ajax you can get the browser to poll for

I have long fortran code that has to be made usable from python. I decided to do Fortran->C->Python interface. I got a problem: I have derived types within Fortran modules that contain double precision, allocatable type as members. When trying to compile with ifort I get (with gfortran something similar): Each component of a derived type with the BIND attribute shall be a nonpointer, nonallocatable data component with interoperable type and type parameters This is actually with agreement with Intel compiler documentation and Fortran 2003 standard: point 15.2.5. Is there any way to access

So, I got an idea to try to p/invoke C functions that take va_list . I know how to p/invoke classic varargs functions (with __arglist ), and as it seemed to me that va_list works just like an ArgIterator , I thought it might be possible to just pass it to the method: [DllImport("msvcrt.dll", CharSet = CharSet.Unicode, CallingConvention = CallingConvention.Cdecl)] public static extern int vswprintf(StringBuilder str, int length, string format, ArgIterator args); public static int vswprintf(StringBuilder str, int length, string format, __arglist) { return vswprintf(str, length, format, new