Topic moved to General Audio Programming.
Audacity doesn't use .Net.
Audacity is written mostly in C++ and built using WxWidgets (http://www.wxwidgets.org/
Audacity is primarily designed as a GUI application, however there is source code available for an experimental optional module that allows Audacity to controlled by sending commands through named pipes. This optional module is called "mod-script-pipe" and its source code can be found in the lib-src directory of the Audacity source code: https://github.com/audacity/audacity/tr ... cript-pipe
Mod-script-pipe has not been developed or maintained over the last year or so, as there is always far more that needs to be done than time allows for our (volunteer) developers. The last time I looked it did not build, but If your guys are able to get mod-script-pipe working again, please send us a patch.