FontDialog.chooseFace

void chooseFace(gtk.window.Window parent =  null,  pango.font_face.FontFace initialValue =  null,  gio.cancellable.Cancellable cancellable =  null,  gio.types.AsyncReadyCallback callback =  null)

This function initiates a font selection operation by presenting a dialog to the user for selecting a font face (i.e. a font family and style, but not a specific font size).

The callback will be called when the dialog is dismissed. It should call gtk.font_dialog.FontDialog.chooseFaceFinish to obtain the result.

Parameters

`parent`	the parent gtk.window.Window
`initialValue`	the initial value
`cancellable`	a gio.cancellable.Cancellable to cancel the operation
`callback`	a callback to call when the operation is complete