Adds "watcher" for specified filter.

procedure DirectShow_Filters_EventWatcher_Add(name: WideString);

__fastcall DirectShow_Filters_EventWatcher_Add(BSTR name);

public DirectShow_Filters_EventWatcher_Add(String name);

Public Sub DirectShow_Filters_EventWatcher_Add(name As String)

public DirectShow_Filters_EventWatcher_Add(string name);

DirectShow_Filters_EventWatcher_Add(BSTR name);

DirectShow_Filters_EventWatcher_Add

public DirectShow_Filters_EventWatcher_Add($name);