In Tcl/Tk there are currently 15 types of widget.
In alphabetical order they are
a simple press button
is a container for displaying “drawn” objects such as lines, circles, and polygons.
a button that hold a state of either on or off
a text entry field
a widget that is a container for other widgets
a simple label
a box containing a list of options
a widget for creating menu bars
a button, which when pressed offers a selection of choices
a multi-line text display widget
a button used to form groups of mutually interacting buttons (When one button is pressed down, the others pop up.)
is like a slider on a music console. It consists of a trough scale and a slider. Moving the slider to a position on the scale sets the overall value of the widget to that value.
used to add scrollbars to windows or canvases. The scrollbar has a slider, which when moved changes the value of the slider widget.
a sophisticated multi-line text widget that can also display other widgets such as buttons
for creating new standalone toplevel windows. (These windows are containers for other widgets. They are not terminal windows.)