Re: runtime version symbols (was Re: gdkpixbuf-animation: how to play without looping)

[tomas tuxteam de]

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On Thu, Sep 28, 2006 at 12:13:03PM +0200, Francesco Montorsi wrote:
> tomas tuxteam de ha scritto:
[...]
> yes, right. However GdkPixbufAnimation and its iter_advance() function 
> will automatically restart the animation when the delay of the last 
> frame has elapsed... that is, there's no way to avoid looping it currently.
>
> > On the
> > other hand, some query functions into the structure of the animation
> > would be nice here.
> right. I submitted a patch which adds _get_frame_count and 
> _get_current_frame functions to GdkPixbufAnimation.

Maybe there are animations where the concept of "frame count" doesn't
make sense?

> However, I've now another small conceptual problem now: consider the 
> following code:
>
>          printf("compiled against gdk-pixbuf %s\n", GDK_PIXBUF_VERSION);
>          printf("linked against gdk-pixbuf %s\n\n", gdk_pixbuf_version);
>
> if I dynamically link my program on my linux which has e.g. gdk-pixbuf 
> version 2.10.3 installed, and then run that binary on another linux 
> which has gdk-pixbuf 2.8 installed, will I get
>
> compiled against gdk-pixbuf 2.10.3
> linked against gdk-pixbuf 2.8.0
>
> or rather:
>
> compiled against gdk-pixbuf 2.10.3
> linked against gdk-pixbuf 2.10.3
>
> ?
>
> I think the first: i.e. gdk_pixbuf_version contains the version of the 
> dynamically loaded library, but I just want to be sure...

According to the docs it should be the first: gdk_pixbuf_version is an
external variable which lives in the lib (so it should reflect the lib's
version) while GDK_PIXBUF_VERSION is a C preprocessor macro which gets
"burnt into" your code at compile time.

Regards
- -- tomas
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