Program Structure

[Kash]

I am calling a dll from C#. The dll is called from a single function call in C# (dllimport ...) The dll produces data, which I want to access in real-time as and when it is generated in C#. However, the single function call will obviously only return the final answer. How can I setup either the dll or the C# to give me data as I require? Do I need to make an additional function call in C# that gives me access to the data or will the dll have to setup to send data back periodically? If so, how can I do this? Your help is appreciated. -- modified at 12:30 Tuesday 6th September, 2005

[Judah Gabriel Himango]

Let me ask if I'm understanding your problem correctly. Your C/C++ dll produces data in real-time, but only gives the final result back, yet you want your C# code to have access to the real-time data? If that's what you want, then you have a few options. One option is to split up the C/C++ function into several functions, each returing parts of the real-time data. Another option is to pass a delegate type to the C/C++ dll which will be called from inside the C/C++ dll as it receives real-time data. I'd recommend the latter option.

Tech, life, family, faith: Give me a visit. I'm currently blogging about: Cops & Robbers Judah Himango

[Kash]

Hi, Yes that's what I'm trying to do. The dll is written in Fortran so splitting up the routines is definitely not something I want to do. I was half-expecting the answer to be on multithreading whereby a call would be made to the main process and periodically a call would be made to the fortran routine that keeps the data with a flag so tell C# that new data has arrived. Just for interest, would this be a good idea? However, I will try as you suggest.

[leppie]

pass a reference to a struct into the dll (if u have access to that) function that u can inspect on the client side, then fire off the dll function in a seperate thread. xacc-ide 0.0.15 now with C#, MSIL, C, XML, ASP.NET, Nemerle, MyXaml and HLSL coloring - Screenshots