[R] GTK Tooltips under Linux

[Ronggui Huang]

Dear all,

I want to set tool-tips for a gtkButton. I use the following code
which works under Windows. However, it doesn't work under Linux. Any
hints? Thanks.

library(RGtk2)
b<-gtkButtonNewWithLabel("OK")
gtkTooltips()$setTip(b,"Memo for a Button.")
gw <- gtkWindow(show=F)
gw$Add(b)
gw$Show()

> sessionInfo()
R version 2.8.0 Patched (2008-12-10 r47137)
i686-pc-linux-gnu

locale:
LC_CTYPE=zh_CN.UTF-8;LC_NUMERIC=C;LC_TIME=zh_CN.UTF-8;LC_COLLATE=zh_CN.UTF-8;LC_MONETARY=C;LC_MESSAGES=C;LC_PAPER=zh_CN.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=zh_CN.UTF-8;LC_IDENTIFICATION=C

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
[1] RGtk2_2.12.11        RQDA_0.1-8           igraph_0.5.2-2
[4] gWidgetsRGtk2_0.0-51 gWidgets_0.0-35      RSQLite_0.7-1
[7] DBI_0.2-4

loaded via a namespace (and not attached):
[1] tools_2.8.0

-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html