Reference Manual - 0.9.25
IDirectFBSurface   SetDstColorKey

Set the destination color key, i.e. the only color that gets overwritten by drawing and blitting to this surface when destination color keying is enabled.

SetDstColorKey (
  IDirectFBSurface   * thiz,
  __u8   r,
  __u8   g,
  __u8   b
);