[R] focus to tkwindow after a PDF window pop up

Peter Dalgaard p.dalgaard at biostat.ku.dk
Mon Jul 2 17:59:52 CEST 2007

Hao Liu wrote:
> Dear All:
> I currently have a TK window start a acroread window: However, when the 
> acroread window is open, I can't get back to the TK window unless I 
> close the acroead.
> I invoked the acroread window using: system(paste("acroread ",file, sep=""))
> anything I can do to make them both available to users?
Tell system() not to _wait_ for command to complete.

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