In C++11 and beyond, a pointer that is ==NULL will also ==nullptr and vice versa. Uses of NULL other than comparing with a pointer (like using it to represent the nul byte at the end of a string) won’t work with nullptr. In some cases, NULL is #define NULL 0, as the integer constant 0 … Read more
Are there any disadvantages using the IDisposable Interace Sure, it accomplishes absolutely nothing. Using Using or calling Dispose() is never an appropriate way to set a variable to Nothing. Which is all that your code does. We completely avoid to use the two dot rule. Feel free to continue to ignore it, it is nonsense … Read more
Using DCOMCNFG.exe. Open it and go to: Component Services -> Computers -> My Computer -> DCOM Config -> Microsoft Excel Application. Open the properties, select Identity tab and select the interactive user.
IntPtr is just a simple integer-based struct that can hold a pointer (ie., 32 bit size on 32-bit systems, 64-bit size on 64-bit systems). SafeHandle is a class that is intended to hold Win32 object handles – it has a finalizer that makes sure that the handle is closed when the object is GC’ed. SafeHandle … Read more
You are updating individual cells. That’s going to be very slow. If you think about it, each time you update a cell, an RPC call will be marshalled to the Excel process. It will be much faster if you assign your two dimensional array of values to an Excel Range of the same dimensions in … Read more
The issue is described here: Is it safe to call an RCW from a finalizer? and here: Release Excel Object In My Destructor The trouble is that not only is the timing as to when these objects are to be garbage collected uncertain, but the order in which the finalizers are called is also nondeterministic. … Read more
This is an excerpt from method of mine, which converts a DataTable (the dt variable) into an array and then writes the array into a Range on a worksheet (wsh var). You can also change the topRow variable to whatever row you want the array of strings to be placed at. object[,] arr = new … Read more
I recommend the approaches detailed here. It starts by explaining how to execute strings of Python code, then from there details how to set up a Python environment to interact with your C program, call Python functions from your C code, manipulate Python objects from your C code, etc. EDIT: If you really want to … Read more
You can do it using IVKM.Net. IVKM.NET includes an application called ikvmc. Here’s the documentation for this tool: http://www.ikvm.net/userguide/ikvmc.html To use it compile your java code into a Jar. Then run the ikvmc program: ikvmc myCode.jar If your jar contains a main() function, it will be converted into an exe that can be run on … Read more
There are several ways for a C++ application to invoke functions in a C# DLL. Using C++/CLI as an intermediate DLL http://blogs.microsoft.co.il/sasha/2008/02/16/net-to-c-bridge/ Reverse P/Invoke http://tigerang.blogspot.ca/2008/09/reverse-pinvoke.html http://blogs.msdn.com/b/junfeng/archive/2008/01/28/reverse-p-invoke-and-exception.aspx Using COM http://msdn.microsoft.com/en-us/library/zsfww439.aspx Using CLR Hosting (ICLRRuntimeHost::ExecuteInDefaultAppDomain()) http://msdn.microsoft.com/en-us/library/dd380850%28v=vs.110%29.aspx http://msdn.microsoft.com/en-us/library/ms164411%28v=vs.110%29.aspx https://stackoverflow.com/a/4283104/184528 Interprocess communication (IPC) How to remote invoke another process method from C# application http://www.codeproject.com/Tips/420582/Inter-Process-Communication-between-Csharp-and-Cpl Edit: Host a HTTP server … Read more