[Lazarus] Get JPEG from TAChart in CGI app

[Marco van de Voort]

On Tue, Mar 22, 2011 at 06:47:11AM +1000, Alexander Klenin wrote:
> > (If people know how to fix/abstract that, I'd be interested due to a
> > possible application in an OpenGL gui)
> 
> As you can see further in the thread, it is already half-fixed ;-)
> TAChart still can not work without any widgetset,
> but already works with nogui.
> BTW, TAChart can draw to OpenGL.

It's just a wild idea, and maybe TAChart is not feasable. But we to display
a whole bunch of trend meters in our app. 

Fast, and predictable update times, scaling possibilities (the nearly free
pan and zoom are the main reason for opengl).

I'm planning to review our opengl routines this summer, and a HUD based
trendmeter is high on the agenda.