tk_popup — Post a popup menu
tk_popup menu x y ?entry?
This procedure posts a menu at a given position on the screen and
configures Tk so that the menu and its cascaded children can be
traversed with the mouse or the keyboard.
Menu is the name of a menu widget and x and y
are the root coordinates at which to display the menu.
If entry is omitted or an empty string, the
menu's upper left corner is positioned at the given point.
Otherwise entry gives the index of an entry in menu and
the menu will be positioned so that the entry is positioned over
the given point.
How to attach a simple popup menu to a widget.
# Create a menu
set m [menu .popupMenu]
$m add command -label "Example 1" -command bell
$m add command -label "Example 2" -command bell
# Create something to attach it to
pack [label .l -text "Click me!"]
# Arrange for the menu to pop up when the label is clicked
bind .l <Button-1> {tk_popup .popupMenu %X %Y}
bind, menu, tk_optionMenu
menu, popup
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