Re: [Caml-list] lablgtk and pdf

[Eric Cooper <ecc@cmu.edu>]

On Tue, Dec 01, 2009 at 02:09:27AM +0000, Ewen Maclean wrote:
> I am generating pdf images from latex source, and I would like to
> show them on screen in part of a pane in lablgtk2. Is it possible to
> do this using a GImage widget or something similar?

I think you will have to render the PDF first into a simple image
format like PPM, and then use GTK to display that.  I don't know of
any OCaml bindings for libpoppler, but you can use the standalone
program "pdftoppm" from the poppler-utils package.  Then you can
display the .ppm file as follows:

    let file = Sys.argv.(1) in
    GMain.init ();
    let window = GWindow.window ~title: "Show Image" () in
    let image = GMisc.image ~file ~packing: window#add () in
    window#connect#destroy ~callback: GMain.quit;
    window#show ();
    GMain.main ()