[Rd] using yscrollcommand in tkcanvas crashes R (PR#13231)

[Greg.Snow at imail.org]

I don't know if this is the case here or not, but putting in scrollbars and=
 scrolling can be a bit tricky.  It usually works best to create the canvas=
 without a scroll command, then create the scrollbar(s), then use tkconfig =
to go back and add the scroll command to the canvas after the scrollbar has=
 been created and placed.

Hope this helps,

--
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org
801.408.8111


> -----Original Message-----
> From: r-devel-bounces at r-project.org [mailto:r-devel-bounces at r-
> project.org] On Behalf Of sundar.dorai-raj at pdf.com
> Sent: Wednesday, October 29, 2008 11:10 PM
> To: r-devel at stat.math.ethz.ch
> Cc: R-bugs at r-project.org
> Subject: [Rd] using yscrollcommand in tkcanvas crashes R (PR#13231)
>
> Full_Name: Sundar Dorai-Raj
> Version: 2.8.0
> OS: Windows
> Submission from: (NULL) (76.220.41.126)
>
>
> The following code crashes R:
>
> library(tcltk)
> tt <- tktoplevel()
> tc <- tkcanvas(tt, yscrollcommand =3D function(...) tkset(ts, ...))
>
> > sessionInfo()
> R version 2.8.0 (2008-10-20)
> i386-pc-mingw32
>
> locale:
> LC_COLLATE=3DEnglish_United States.1252;LC_CTYPE=3DEnglish_United
> States.1252;LC_MONETARY=3DEnglish_United
> States.1252;LC_NUMERIC=3DC;LC_TIME=3DEnglish_United States.1252
>
> attached base packages:
> [1] tcltk     stats     graphics  grDevices utils     datasets  methods
> [8] base
>
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