The objects in RGtk2 (and cairoDevice) are externalptr objects in R. One approach would be to create an externalptr in C, and then call some R code that sets the class attribute accordingly, i.e., to the result of gTypeGetAncestors("GtkDrawingArea"), and then calls asCairoDevice() on that object.
Michael On Mon, Sep 9, 2013 at 5:24 PM, Thomas Glogowski <thomas.glogow...@rub.de>wrote: > Greetings, > > im trying to show a simple plot-window in a GtkDrawingArea of a GTK3+ > app. I thought it would be possible to use the CairoDevice-Package and > hand the DrawingArea generated in my GTK-App via a DLL over to the > CairoDeviceDriver, but I was unable to figure out, how. > As far as I understand a call to the DLL via ".C" does not work, because > a DrawingArea is not a basic C-Type. > Using ".Call" (even for simple test calls without transferring > parameters) always end up in a crash to RGUI. Registering my > DLL-transfer-function (I'm not sure wether this is necessary or not) > doesn't work either, because I lack the necessary lib-files to compile > the register-function (I'm using VS2010). The entire project is based on > VS2010 so using the RTools and gcc to build R from source to obtain the > lib-files is no option. > > Any hints are greatly appreciated. > > kind regards, Thomas > > _______________________________________________ > R-SIG-GUI mailing list > R-SIG-GUI@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-gui > [[alternative HTML version deleted]] _______________________________________________ R-SIG-GUI mailing list R-SIG-GUI@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-gui