Nothing
## example of gaction
if(interactive()) {
## means to make a simple handler
f <- function(x) function(...) print(x)
## list of action objects
lst <- list(new=gaction("new", icon="new", handler=f("new")),
open=gaction("open", icon="open", handler=f("open")),
save=gaction("save", icon="save", handler=f("save"))
)
## can enable or disable an action -- all instances reflect the state. Svalue works too.
enabled(lst$save) <- FALSE
w <- gwindow("Example of actions in buttons and toolbar", visible=FALSE)
tb <- gtoolbar(lst, cont=w)
b <- gbutton(action=lst$open, cont=w)
visible(w) <- TRUE
}
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