Get Display Info

Hi All,

I'm writting an app that needs to change the display resolution while
running and then change it back on closing.  I need to populate a
TDevMode with current settings to use with ChangeDisplaySettings() on
closing.  I know how to get dmBitsPerPel, dmPelsWidth,and dmPelsHeight
with GetDeviceCaps but I haven't found a way to get the current vaules
for dmDisplayFlags and dmDisplayFrequency.

How can I get the current settings for these values?

Thanks,
Steve