[PATCH 3/3] comctl32/datetime: Implement DTM_GETIDEALSIZE message.

[Nikolay Sivov]

Signed-off-by: Nikolay Sivov <nsivov at codeweavers.com>

> +· /* Add space between controls for them not to get too close */
> +· size->cx += 12;
> +· size->cy += 4;
This is not ideal (no pun intended), and better be using some font 
metrics too, or system metrics, that scale with current resolution. But 
it's good enough for now probably.