Usually people dont like it when a program changes the resolution of their system. Are you at least going to revert the settings when your app closes or ???
VB/Office Guru™ (AKA: Gangsta Yoda™ ®)
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I provided a link to a VB.NET code example that changes screen resolution for the same question at another forum, but I have to say that I agree that it is generally a bad idea. The only programs that I've ever had that changed my resolution have been games that run in full-screen mode and changed it back afterwards. I have a wide-screen monitor in portrait mode running at 1200 x 1920. I'd be pretty peeved if some app decided to change that to 800 x 600 or something. Remember also that many LCD monitors look awful at anything other than their native resolution. I guess we don't know so I should ask, what is the reason for changing the resolution and are you giving the user an option to stick with their current resolution?