I'm trying to make a program that has a textbox and a button and make it so that when you press the button, it looks into a text file on dropbox, and reads it and if the textbox has the text that the text file has, make it trigger something. If somebody could please help me, I would really appreciate it. Thank you!
You should probably take a look at https/www.dropbox.com/developers. You will need to familiarise yourself with the API. You might also find this 3rd party library useful for interfacing with DropBox (although it's not strictly required): http/higlabo.codeplex.com