[19/44] user32: Increased area for scrolling via mouse drag outside scrollbar

[Rob Shearman]

Dylan Smith wrote:
> +  /* Distance beside or past the ends the scrollbar for the mouse can be dragged
> +   * away from scrollbar and still be considered in the scrollbar. */
> +#define SCROLL_DRAG_ZONE_PADDING_BESIDE    138
> +#define SCROLL_DRAG_ZONE_PADDING_PAST_END  34

This should be a proportion of the scrollbar width/height instead of
absolute values in pixels.

-- 
Rob Shearman