Fusion Add-In with .NET (C++ & CLR)

I've written about using MFC from a C++ Fusion add-in. You could also use .NET from your add-in, and it's even simpler to set up.

1) Create a C++ add-in inside the "Scripts and Add-Ins" Fusion dialog:

I'm leaving "Run on Startup" option above unchecked, because it would not be a good idea to pop up a modal dialog while Fusion is starting up. That would halt the startup process.

2) Open it for edit:

3) Add "Common Language Runtime Support" in your C++ project's Properties dialog

4) Place the Fusion related code inside a #pragma unmanaged /#pragma managed block

5) Add a "Windows Form" through "PROJECT" >> "Add New Item…"

Note: You can add any of the .NET Form controls to it as in case of a C# or VB.NET project. I've just added a list box for testing and filled it with items.

6) Create a function to show this dialog

a) In "MyForm.h" declare showDialog()

b) In "MyForm.cpp" implement the function

7) Now we can call it from the startup function called run()

a) Add #include "MyForm.h" to the top of "CustomNetUi.cpp"

b) Call showDialog() from run()

extern "C" XI_EXPORT bool run(const char* context) {   app = Application::get();   if (!app)     return false;    ui = app->userInterface();   if (!ui)     return false;    showDialog();    return true; }