BrowseEntry is a poor man's ComboBox. It may be considered an
enhanced version of LabEntry which provides a button to popup the
choices of the possible values that the Entry may
take. BrowseEntry supports all the options LabEntry supports
except -textvariable. This is replaced by -variable. Other
options that BrowseEntry supports.
Specifies a function to call when a selection is made in the
popped up listbox. It is passed the widget and the text of the
entry selected. This function is called after the entry variable
has been assigned the value.
Specifies the function to call when the button next to the entry
is pressed to popup the choices in the listbox. This is called before
popping up the listbox, so can be used to populate the entries in
Specifies one of three states for the widget: normal, readonly, or
disabled. If the widget is disabled then the value may not be changed
and the arrow button won't activate. If the widget is readonly, the
entry may not be edited, but it may be changed by choosing a value
from the popup listbox. normal is the default.