writeText: Functions that read from and write to tcltk widgets
In widgetTools: Creates an interactive tcltk widget

Description Usage Arguments Details Value Author(s) References See Also Examples

These functions provide some of the common read and write operations for tcltk widgets

writeText(widget, value, clear = TRUE)
writeList(widget, value, clear = TRUE)
getListValue(which)
getTextValue(which)
getEntryValue(which)

`widget`	`widget` a tkwin object for the tcltk widget to be read or written to
`value`	`value` the text of numerical value to be written to a tcltk widget
`clear`	`clear` a boolean to indicate whether a value will append to the existing one (FALSE)
`which`	`which` a tkwin object for the tcltk widget whose value will be retrieved

writeText writes to a given tcltk text box widget.

writeList writes to a given tcltk list or entry box widget.

getListValue retrieves the selected value in a tcltk list widget.

getTextValue retrieves the value of a text box.

getEntryValue retrieves the value of an entry box.

getListValue returns the selected value in a tcltk list widget.

getTextValue returns the value of a text box.

getEntryValue returns the value of an entry box.

Jianhua Zhang

R tcltk

basicPW-class, widget-class

## Not run: 
    ## These cannot be run by examples() but should be OK when pasted
    ## into an interactive R session with the widgetTools package loaded

    # Create the widgets
    base <- tktoplevel()
    list <- tklistbox(base, width = 20, height = 5)

    entry <- tkentry(base)
    text <- tktext(base, width = 20, height = 5)
    tkpack(list, entry, text)
    # Write and read from the widgets
    writeList(list, c("Option1", "Option2", "Option3"))
    writeList(entry, "An Entry box")
    writeText(text, "A text box")
    # Will be NULL if not selected
    getListValue(list)
    getTextValue(text)
    getEntryValue(entry)
# Destroy toplevel widget
#    tkdestroy(base)

## End(Not run)