I was wondering if someone could help me change the screen resolution of the secondary monitor using C++ on Windows 7. I understand this is not much information so if you need more just comment and I'll provide it.
Thanks in advance,
You can do this by setting the correct resolution in a DEVMODE structure, then calling ChangeDisplaySettingsEx to actually make the change.
You may want to use EnumDisplaySettingsEx to find a resolution supported by the display and graphics card in question.