generate_preview

Description:

[ Version ( since = "3.52" ) ]
public virtual string? generate_preview (GeneratePreviewFunc? func)

Generates preview of the this, to be used in the interface, read by the users.

The optional func can be used to override default preview generation function. If provided, it's always called as the first try on the parts.

this	a Multipart
func	an optional GeneratePreviewFunc function, or null
user_data	user data for the `func`, or null

part's preview as a new string, or null, when cannot be generated. Free with g_free, when no longer needed.