Reading screen resoltion, changing it, then changing back

Hello everyone -
Well, I was able to change the screen-resolution and returning to the original screen-res., but the problem is the display-frequency !
How can I read the current screen-size and frequency (e.g. 1024x768, 75 Hz), then change it to another resolution (e.g. 800x600 60Hz), and then, when exiting the program, change back to the original resolution and frequency (1024x768, 75Hz) ?

Any help would be greatl appreciated ! :) Thx !

Why not just reset the frequency for your change and the restoration of the original settings to 'Optimal' ? Ive never worked with screen resolutions and settings before, so just a suggestion, hope its useful.

Using "optimal" for the 800x600 would work, but I would like to restore to the original-frequency afterwards.

bump

Emm... What do you mean by 'Bump' ?