{
    GifFrameDecode *This = (GifFrameDecode*)iface;
    WICColor colors[256];
    ColorMapObject *cm = This->frame->ImageDesc.ColorMap;
    int i, trans;
    ExtensionBlock *eb;
    TRACE("(%p,%p)\n", iface, pIPalette);

    if (!cm) cm = This->parent->gif->SColorMap;

    if (cm->ColorCount > 256)
    {
        ERR("GIF contains %i colors???\n", cm->ColorCount);
        return E_FAIL;
    }

    for (i = 0; i < cm->ColorCount; i++) {
        colors[i] = 0xff000000| /* alpha */
                    cm->Colors[i].Red << 16|
                    cm->Colors[i].Green << 8|
                    cm->Colors[i].Blue;
    }

    /* look for the transparent color extension */
    for (i = 0; i < This->frame->ExtensionBlockCount; ++i) {
    eb = This->frame->ExtensionBlocks + i;
    if (eb->Function == 0xF9 && eb->ByteCount == 4) {
        if ((eb->Bytes[0] & 1) == 1) {
            trans = (unsigned char)eb->Bytes[3];
            colors[trans] &= 0xffffff; /* set alpha to 0 */
            break;
        }
    }
    }

    IWICPalette_InitializeCustom(pIPalette, colors, cm->ColorCount);

    return S_OK;
}

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