setForwardPageFunc
⚠️ Deprecated ⚠️
This is deprecated since version 4.10.
This widget will be removed in GTK 5
---Sets the page forwarding function to be @page_func.
This function will be used to determine what will be the next page when the user presses the forward button. Setting @page_func to null will make the assistant to use the default forward function, which just goes to the next visible page.
Parameters
pageFunc
the GtkAssistantPageFunc, or null to use the default one