Title: Notifying applications that the registry has changed
Question: When I make a change to the registry, some applications do not
seem to acknowledge the changes until they are restarted. How
can I get the applications to respond to the changes?
Answer:
Broadcast a WM_WININICHANGE message to the system, sending a
null terminated string detailing the registry section that
changed. Most well written applications should respond to the
WM_WININICHANGE message.
Example:
procedure TForm1.Button1Click(Sender: TObject);
begin
SendMessage(HWND_BROADCAST,
WM_WININICHANGE,
0,
LongInt(PChar('RegistrySection')));
end;