[Rd] indicating progress in RGui from a c function

Seth Falcon sfalcon at fhcrc.org
Tue Sep 20 20:58:21 CEST 2005


On 20 Sep 2005, cpaulse at aecom.yu.edu wrote:
> I'd like to indicate progress of a calculation from within a C
> shared library to the R GUI.  The apparent function call is
> flush.console() after RPrintf, but it isn't clear to me what the
> easiest way to do this is.  Would it be possible to add a flag to
> RPrintf to have this done implicitly?

When you do get this sorted out, you may want to consider a verbose
option that toggles such updating of the GUI.  When users want to run
code in a non-interactive mode, such output can get in the way.

You could use interactive() to determine a default value for the
verbose option.

Best,

+ seth



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