tooltip {widgetTools}R Documentation

A tcltk widget to mimic a tooltip

Description

Current tcltk library does not support tooltip unless an extension is included. The function tooltip is implemented as an alternative.

Usage

tooltip(text, targetWidget, width = 350)

Arguments

text text a character string for the content of the tooltip
targetWidget targetWidget a tkwin object for the target tcltk widget to which a tool tip will be associated
width width an integer for the width (in pixels) of the tooltip

Details

Given a target tcltk widget, a tooltip will be associated with the widget. The content of the tooltip will be shown when mouse moves over the widget and disappear when mouse moves out of the widget.

Value

This function returns invisible()

Note

This function is part of the Bioconductor project at Dana-Farber Cancer Institute to provide Bioinformatics functionalities through R

Author(s)

Jianhua Zhang

References

tcltk

See Also

dropdownList

Examples

## Not run: 
    ## These cannot be run by examples() but should be OK when pasted
    ## into an interactive R session with the widgetTools package loaded
    
    base <- tktoplevel()
    but <- tkbutton(base, text = "Move Mouse Over Me")
    tkpack(but)
    tkbind(but, "<Enter>", expression(tooltip("Move mouse off me", but)))

    # Destroy toplevel widget
    # tkdestroy(base)
## End(Not run)

[Package widgetTools version 1.6.0 Index]