search for: c_dottcl

...king a look at tcltk source code, it can be seen that the dotTcl is called using .External within tcltk-package and there is a registration done for it with R_registerRoutines. An object of class NativeSymbolInfo has also been created in the tcltk namespace, and that can be accessed using tcltk:::.C_dotTcl. However, the tcltk:::.C_dotTcl$address is an external pointer of a class RegisteredNativeSymbol and not directly the function pointer to the actual routine. The problem is that there appears not to be any R-level function that would extract the actual function-pointer and that the C-interface for...

...here: http://tkrplot.sourcearchive.com/documentation/0.0.14/tcltkimg_8c_source.html > library(tkrplot) > library(tcltk) > my.tkdev <- function() win.metafile(width=4,height=4) > my.tkdev() > plot(1:20) > .Tcl("image create Rplot fred") Error in structure(.External(.C_dotTcl, ...), class = "tclObj") : [tcl] can't get device image. This example works fine in R-2.15.3. I've emailed the package maintainer Luke Tierney but unfortunately he doesn't have the ability to build and test packages on windows. Can anyone elucidate what tcltk changes have...

...tcltk source code, it can be seen that the dotTcl is called using > .External within tcltk-package and there is a registration done for it with > R_registerRoutines. An object of class NativeSymbolInfo has also been created in the > tcltk namespace, and that can be accessed using tcltk:::.C_dotTcl. > > However, the tcltk:::.C_dotTcl$address is an external pointer of a class > RegisteredNativeSymbol and not directly the function pointer to the actual routine. The > problem is that there appears not to be any R-level function that would extract the actual > function-pointer and...