Level editor: Access Violation

[Björn Fischer]

Hi,
I tried to build a new level. I'm afraid I didn't get too far because 
anytime I tried to activate (click) the entrance or exit, pingus quitted.

I traced the error to an Acces violation in sprite_editorobj.cxx:

------------------------------------------------------------------
bool
SpriteEditorObj::is_over(const Vector& pos)
{
  // FIXME: We don't handle animated objects special (do we need to?)
  if (RectEditorObj::is_over (pos))
    {
      //std::cout << "ClickPos: " << pos.x << ", " << pos.y
        //<< " ObjectPos: " << pos_ref.x << ", " << pos_ref.y << std::endl;

      CL_SurfaceProvider* provider = sprite.get_surface ().get_provider ();
      float r, g, b, a;
      // Position relative to the surface, not world
      Vector provider_pos = pos;
      provider_pos -= *pos_ref;

provider->get_pixel (int(provider_pos.x), int(provider_pos.y), &r, &g, 
&b, &a);
----------------------------------------------------------------------

The last line (line 116) produced the following output in VC++:

----------------------------------------------------------------------
[...]
Nicht abgefangene Ausnahme in pingus.exe: 0xC0000005: Access Violation.
----------------------------------------------------------------------

It seems that the Access Violation only occurs when klicking an entrance 
or exit. The other objects behave normal.
Any idea about that? Do other Win-Users have that too?

Greetings

Björn