If you're not using the compatibility layer then they won't be available. This is part of an ongoing exercise to move bits of the 3.x code out from under the IDE framework but hasn't progressed to the shared images yet. You might open (find?) an enhancement request specifically for this...
On 31-03-14 12:03, Jens Rabe wrote:
> Since E4 has no PlatformUI, fow could I possibly get the ISharedImages?
> I tried to inject them, but get an InjectionException saying: no actual
> value was found for the argument "ISharedImages".