rk.show.message {rkward} | R Documentation |
Multi-purpose pop-up message boxes and selection list using native KDE GUI elements. The message boxes can be used either to show some information or ask some question. The selection list can be used to get a vector of selected items.
rk.show.message (message, caption = "Information", wait = TRUE) rk.show.question (message, caption = "Question", button.yes = "yes", button.no = "no", button.cancel = "cancel") rk.select.list (list, preselect = NULL, multiple = FALSE, title = NULL)
message |
a string for the content of the message box. |
caption |
a string for title of the message box. |
button.yes |
a string for the text label of the Yes button. Can be an empty string ("" ), in which case the button is not displayed at all. |
button.no |
a string used for the text label of the No button, similar to button.yes . |
button.canel |
a string used for the text label of the Cancel button, similar to button.yes . |
wait |
a logical (not NA) indicating whether the R interpreter should wait for the user's action, or run it asynchronously. |
list |
a vector, coerced into a character vector. |
preselct |
a vector, coerced into a character vector, items to be preselected. |
multiple |
a logical (not NA), when TRUE multiple selection selection is allowed. |
title |
a string, for the window title of the displayed list |
For rk.show.question
, the R interpreter always waits for the user's choice.
rk.select.list
replaces utils::select.list
for the running session acting as a drop-in replacement for tk_select.list
. Use .rk.select.list.default
for the original utils::select.list
function (see Examples).
rk.show.message
always returns TRUE
, invisibly.
rk.show.question
returns TRUE
for Yes, FALSE
for No, and NULL
for Cancel actions.
rk.select.list
returns the value of select.list
.
Thomas Friedrichsmeier rkward-devel@lists.sourceforge.net
require (rkward) ## Message boxes if (rk.show.question ("Question:\nDo you want to know about RKWard?", button.yes = "Yes, I do!", button.no = "No, I don't care!", button.cancel = "")) { rk.show.message ("Message:\nRKWard is a KDE GUI for R.", "RKWard Info") } else { rk.show.message ("You must be joking!", "RKWard Info", wait = FALSE) ## Run asynchronously } ## Selection lists: rk.select.list (LETTERS, preselect = c("A", "E", "I", "O", "U"), multiple = TRUE, title = "vowels") .rk.select.list.default (LETTERS, preselect = c("A", "E", "I", "O", "U"), multiple = TRUE, title = "vowels")