"tkinter.fontchooser" --- Font selection dialog
***********************************************

Added in version 3.16.0a0 (unreleased).

**Source code:** Lib/tkinter/fontchooser.py

======================================================================

The "tkinter.fontchooser" module provides the "FontChooser" class as
an interface to the native font selection dialog.

The font dialog is application-global: there is a single font dialog
per Tcl interpreter, and all "FontChooser" instances configure the
same dialog.

Depending on the platform, the dialog may be modal or modeless, so
"show()" may return immediately. The selected font is not returned: it
is passed as a "Font" object to the callback specified with the
*command* option.

The dialog also generates two virtual events on the parent window (see
the *parent* option):

"<<TkFontchooserVisibility>>"
   Generated when the dialog is shown or hidden. Query the *visible*
   option to tell which.

"<<TkFontchooserFontChanged>>"
   Generated when the selected font changes.

Nota:

  The *command* callback is the only reliable way to obtain the
  selected font. On some platforms the *font* option is not updated to
  the user's choice.

class tkinter.fontchooser.FontChooser(master=None, **options)

   The class implementing the font selection dialog.

   *master* is the widget whose Tcl interpreter owns the dialog. If
   omitted, it defaults to *parent* if that is given, or to the
   default root window otherwise.

   The supported configuration options are:

   * *parent* --- the window to which the dialog and its virtual
     events are related. It defaults to the main window; on macOS the
     dialog is shown as a sheet attached to it, rather than as a free-
     standing panel.

   * *title* --- the title of the dialog.

   * *font* --- the font that is currently selected in the dialog.

   * *command* --- a callback that is called with a "Font" object
     wrapping the selected font when the user selects a font.

   * *visible* --- whether the dialog is currently displayed (read-
     only).

   The *font* option accepts the forms supported by
   "tkinter.font.Font".

   configure(**options)
   config(**options)

      Query or modify the options of the font dialog. With no
      arguments, return a dict of all option values. With a string
      argument, return the value of that option. Otherwise, set the
      given options.

   cget(option)

      Return the value of the given option of the font dialog.

   show()

      Display the font dialog. Depending on the platform, this method
      may return immediately or only once the dialog has been
      withdrawn.

   hide()

      Hide the font dialog if it is displayed.

Ver también:

  Module "tkinter.font"
     Tkinter font-handling utilities
