Mark Heckmann
2010-Aug-13 16:39 UTC
[R] RDCOMClient interface - problems setting a variable
I try to produce and modify shapes in a PowerPoint presentation but run into a difficulty setting a variable. library(RDCOMClient) # load RDCOMClient package library(SWinTypeLibs) # package SWinTypeLibs from Omegahat to access information about COM libraries ppt = COMCreate("PowerPoint.Application") # create a ppt COM ppt[["Visible"]] <- TRUE # set COM property visible to TRUE pres = ppt$Presentations()$Add() # add a presentation slide <- pres$Slides()$Add(1,1) # add slide to presentation shape1 <- slide$Shapes()$AddShape(92, 200, 200, 100, 100) # add a shape object shape1$Adjustments()$Item(1) # read adjustment parameter How can I change this setting now? Taking a look at the functions available it shows that there are two item() functions - a getter and a setter, but have the same name. names(getFuncs(shape1$Adjustments())) str(getFuncs(shape1$Adjustments())[[12]]) # getter str(getFuncs(shape1$Adjustments())[[13]]) # setter In VBA it works like this, supposing the shape is selected: ActiveWindow.Selection.ShapeRange.Adjustments.Item(1) = 2 Here getting and setting is done by appointing a value or not. I have no clue how to use the setter via R. Can anyone help? A lot of thanks in advance!! Mark ??????????????????????????????????????? Mark Heckmann Dipl. Wirt.-Ing. cand. Psych. Vorstra?e 93 B01 28359 Bremen Blog: www.markheckmann.de R-Blog: http://ryouready.wordpress.com