Creates a new GtkAppChooserDialog for the provided content type.
The dialog will show applications that can open the content type.
a GtkWindow, or %NULL
flags for this dialog
a content type string
a newly created GtkAppChooserDialog
ConstructionException GTK+ fails to create the object.
See Implementation
Creates a new GtkAppChooserDialog for the provided content type.
The dialog will show applications that can open the content type.