c# - Open file with association -

i made file editor in c#, , can open files using 'open' button in toolbar, associated correct file types program, when click file extension *.nlp program opens correctly, not open file (which quite logical since did not implement yet)

now question, how implement such thing? want file opened , loaded when click on it.

(btw, file plain text, nothing special, , it's windows if matters)

in windows file associations stored , managed in registry under hkey_classes_root

you can following manually or write little setup program write correct entries registry.

you need register extension , associate program this document describes. see this doc registry should this:

hkey_classes_root    .nlp       (default) = yourprogid//can want    yourprogid       shell          open             command                (default) = yourapp.exe %1 

now, key answer %1 in command key. filename opened , passed argument app.

so :

static void main(string[] args) {    // args contain filename }