If you open an app using the default settings for system2, R normally expects to let you know what the program's return value was, so if it was interactive you would need to terminate the program so there would be a result for system2 to return with. For what you actually appear to be doing you probably want to read ?system2.
On July 5, 2020 3:16:12 PM PDT, "Sparks, John" <jspa...@uic.edu> wrote: >Hi Jeff, > >Greatly appreciate your reply, but I don't quite understand it. > >Perhaps I should give a little more detail. > >For this example, I want to open notepad, then go to notepad and type >something in. So the program > >library(KeyboardSimulator) >setwd("C:/Users/JSparks/AppData/Roaming/Microsoft/Windows/Start >Menu/Programs/Accessories") >system2("Notepad",invisible=FALSE) >mouse.move(2423,236) >mouse.click() >keybd.type_string("Hello world!") > >would do this, but it does not advance passed the system2 command. > >Best wishes, >--JJS > >________________________________ >From: Jeff Newmiller <jdnew...@dcn.davis.ca.us> >Sent: Sunday, July 5, 2020 5:08 PM >To: r-help@r-project.org <r-help@r-project.org>; Sparks, John ><jspa...@uic.edu>; R-help <r-help@r-project.org> >Subject: Re: [R] Opening Another Application in R Then Hangs > >Exit the application you started? > >On July 5, 2020 3:06:52 PM PDT, "Sparks, John" <jspa...@uic.edu> wrote: >>Hi R Helpers, >> >>I am trying to open another application from within R and then work >>with it. >> >>I can get the application to open, but R then hangs at that point >>(spinning blue circle in the middle of the screen) and my subsequent >>programming does not execute. >> >>Does anybody know how to get R to unlock? >> >>I am using Windows 10 and R4.0. >> >>The example below freezes R on my machine. >> >>Any guidance appreciated. Thanks. >>--John Sparks >> >>setwd("C:/Users/JSparks/AppData/Roaming/Microsoft/Windows/Start >>Menu/Programs/Accessories") >>system2("Notepad",invisible=FALSE) >> >> >> >> >> >> >> [[alternative HTML version deleted]] >> >>______________________________________________ >>R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >>https://stat.ethz.ch/mailman/listinfo/r-help >>PLEASE do read the posting guide >>http://www.R-project.org/posting-guide.html >>and provide commented, minimal, self-contained, reproducible code. > >-- >Sent from my phone. Please excuse my brevity. -- Sent from my phone. Please excuse my brevity. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.