[R] Opening Another Application in R Then Hangs

Sparks, John j@p@rk4 @end|ng |rom u|c@edu
Mon Jul 6 00:16:12 CEST 2020

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

setwd("C:/Users/JSparks/AppData/Roaming/Microsoft/Windows/Start Menu/Programs/Accessories")
keybd.type_string("Hello world!")

would do this, but it does not advance passed the system2 command.

Best wishes,

From: Jeff Newmiller <jdnewmil using dcn.davis.ca.us>
Sent: Sunday, July 5, 2020 5:08 PM
To: r-help using r-project.org <r-help using r-project.org>; Sparks, John <jspark4 using uic.edu>; R-help <r-help using 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" <jspark4 using 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
>       [[alternative HTML version deleted]]
>R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
>PLEASE do read the posting guide
>and provide commented, minimal, self-contained, reproducible code.

Sent from my phone. Please excuse my brevity.

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