2009/8/25 Andrew Eikum <aeikum(a)codeweavers.com>:
> +GpStatus WINGDIPAPI GdipIsVisibleRegionPointI(GpRegion* region, INT x, INT y, GpGraphics *graphics, BOOL *res)
> +{
> +    TRACE("(%p, %d, %d, %p, %p)\n", region, x, y, graphics, res);
> +
> +    if(!region || !res)
> +        return InvalidParameter;
It's a bit redundant to do that check twice. Shouldn't hurt much though.