Re: gdk_put_image() and ColorMap

["John Que" <qwejohn hotmail com>]

Hello,

well , I knew about gdk_draw_rgb_image() before from the docs but it seems 
to me that
it is not suitable for this case bacause the image was created with
XImage* image = CreateImage(... , ZPixmap,...).

Nevertheless I will try it; thxs

Regards,
john


> From: John Cupitt <jcupitt gmail com>
> Reply-To: John Cupitt <jcupitt gmail com>
> To: John Que <qwejohn hotmail com>
> CC: gtk-app-devel-list gnome org
> Subject: Re: gdk_put_image() and ColorMap
> Date: Thu, 26 Aug 2004 18:20:10 +0100
>
> Hi,
>
> On Thu, 26 Aug 2004 18:57:42 +0300, John Que <qwejohn hotmail com> wrote:
> > I have an X application which displays an XImgae instance.
> > Now , I do display this image correctly using XLib app (without gtk).
> > I should port this to gtk/gdk.
>
> I made this change a few years ago. The magic API you want is
> gdk_draw_rgb_image():
>
> http://developer.gnome.org/doc/API/gdk/gdk-gdkrgb.html
>
> It takes a buffer of 8-bit RGB pixels and renders them to any X
> drawable, ditheriing etc. as required. If shared memory is available,
> it'll use that to send the pixels to the server for you. No need to
> mess about with visuals/colormaps/etc, although if you want to control
> that stuff you still can.
>
> It's pretty quick too. There's a benchmark program in the gtk+-1.2
> distribution (testrgb I think) which will give you megapixels/sec
> numbers. If it's an option, gtk2 has a higher level API (gdkpixbuf)
> which can directly display image files for you.
>
> John

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