This is what Screen.s probably sets:

PAL 640x480IL/50Hz ARGB8888:

BITMAPTYPE	0x0000000d
BITMAPTYPE2	0x00160000
IMAGECONTROL	0x00000190
FRAMETOTAL	0x0270035f
DIWSIZE		0x2813be7f
BORDERWINDOWX	0x008d034b
BORDERWINDOWY	0x00160134
FRAMEBUF	0x00200000
FRAMEBUF2	0x00200a00
DIWSTARTH	0x000000ae
DIWSTARTV	0x002e002d


PAL 640x480IL/60Hz ARGB8888:

BITMAPTYPE	0x0000000d
BITMAPTYPE2	0x00160000
IMAGECONTROL	0x00000150
FRAMETOTAL	0x020c0359
DIWSIZE		0x2813be7f
BORDERWINDOWX	0x007e0345
BORDERWINDOWY	0x00120102
FRAMEBUF	0x00200000
FRAMEBUF2	0x00200a00
DIWSTARTH	0x000000a4
DIWSTARTV	0x00120012


VGA 640x480/60Hz ARGB8888:

BITMAPTYPE	0x0080000d
BITMAPTYPE2	0x00160000
IMAGECONTROL	0x00000100
FRAMETOTAL	0x020c0359
DIWSIZE		0x00177e7f
BORDERWINDOWX	0x007e0345
BORDERWINDOWY	0x00280208
FRAMEBUF	0x00200000
DIWSTARTH	0x000000a8
DIWSTARTV	0x00280028
