AppInfo.getDefaultForTypeAsync

void getDefaultForTypeAsync(string contentType,  bool  mustSupportUris,  gio.cancellable.Cancellable cancellable =  null,  gio.types.AsyncReadyCallback callback =  null)

Asynchronously gets the default #GAppInfo for a given content type.

Parameters

`contentType`	the content type to find a #GAppInfo for
`mustSupportUris`	if true, the #GAppInfo is expected to support URIs
`cancellable`	optional #GCancellable object, null to ignore
`callback`	a #GAsyncReadyCallback to call when the request is done