[Rd] Mismatch between the Rconsole file and the RGui Configuration editor

[Duncan Murdoch]

I would guess what is happening is the following.  R reads your file, 
and asks the window to resize as you specify.  Then when it is 
populating the config editor, it measures the size of the window, and 
computes the equivalent number of rows and columns.  The fact that these 
numbers don't match suggests that one calculation is for the outer 
dimensions of the window (the one that resizes it at the start), and the 
other is for the inner dimensions (not including the frame).

This is going to cause problems if you repeatedly start R and save the 
config, because the window will keep getting smaller.  But who does that?

If the discrepancy really bothers you, then you could try to figure out 
exactly where it occurs by looking at the source file 
src/gnuwin32/console.c (or one of the other files in that directory). 
The source is mirrored on Github at 
https://github.com/wch/r-source/blob/trunk/src/gnuwin32/console.c .

Duncan Murdoch

On 27/08/2022 2:46 p.m., Paulo Barata wrote:
> 
> To the R developers,
> 
> In R version 4.2.1 (2022-06-23 ucrt), and also in R version 4.2.1
> Patched (2022-08-24 r82762 ucrt), something strange is happening with
> the GUI Preferences x Rconsole file. I open the GUI Preferences (RGui
> Configuration editor), and I define the number of console rows and
> columns, the I click Apply and then I Save the Preferences to the
> Rconsole file (which is in the Documents folders of my Windows 10 Pro)
> -- I overwrite the existing Rconsole file. Then I close R.
> 
> When I open R again, there is always a mismatch between the number of
> console rows and columns correctly recorded in the Rconsole file and the
> numbers actually shown in the RGui Configuration editor.
> 
> If this list allows attachments, the attached PNG image shows the
> mismatch between the Rconsole file and the RGui Configuration editor,
> just after opening R version 4.2.1 (2022-06-23 ucrt).
> 
> Windows 10 Pro for Workstations
> Version 21H2
> Installed on 23/‎08/‎2022
> OS build 19044.1889
> Processor Intel(R) Xeon(R) W-1350 @ 3.30GHz  3.31 GHz
> Installed RAM 64.0 GB (63.7 GB usable)
> 
> 
> R version 4.2.1 (2022-06-23 ucrt) -- "Funny-Looking Kid"
> Copyright (C) 2022 The R Foundation for Statistical Computing
> Platform: x86_64-w64-mingw32/x64 (64-bit)
> 
>    > Sys.info()
>              sysname           release           version          nodename
>            "Windows"          "10 x64"     "build 19044" "XXXXXXXXXXXXXXX"
>              machine             login              user    effective_user
>             "x86-64"           "XXXXX         "XXXXX"           "XXXXX"
>    > win.version()
> [1] "Windows 10 x64 (build 19044)"
> 
>    > .Platform
> $OS.type
> [1] "windows"
> $file.sep
> [1] "/"
> $dynlib.ext
> [1] ".dll"
> $GUI
> [1] "Rgui"
> $endian
> [1] "little"
> $pkgType
> [1] "win.binary"
> $path.sep
> [1] ";"
> $r_arch
> [1] "x64"
> 
> Thank you. Regards,
> 
> Paulo Barata
> 
> (Rio de Janeiro - Brazil)
> 
> 
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