Re: jpeg images
- From: Helmethead <hoshem mel comcen com au>
- To: John Cupitt <john cupitt ng-london org uk>
- Cc: Ronald Bultje <rbultje ronald bitfreak net>, gtk-list gnome org
- Subject: Re: jpeg images
- Date: Tue, 6 Mar 2001 01:59:40 +1100
On Mon, Mar 05, 2001 at 10:40:53AM +0000, John Cupitt wrote:
> Ronald Bultje wrote:
> > I would like to display jpeg images on the screen, for example using the
> > GtkPreview or something similar. But how would I load the jpeg image from
> > the file?
>
> Hi Ronald, libjpeg has an API for decompressing into a memory buffer. If
> you download the sources (http://www.ijg.org), the docs are included.
> Once it's in memory, you can draw it with the gdk_rgb*() functions.
>
> If you want something higher level, GdkPixbuf and friends have jpeg
> loaders (I think) ... not used them myself though.
Indeed it does.. gdk-pixbuf is the friend of gtk+ 1.3/2.0, people that write for 1.2 use imlib though
The easiest way is probably to create a GtkDrawingArea and set it's background to the image (and size to the image size)
Put it centered in a GtkAlignment for added spiffyness.
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