I found some csharp code on codeproject that changes monitor resolutions, but none of it supported multiple monitors. Getting the code updated to support multiple monitors was way more complex than I thought it would be. But I did it -- and the code now supports infinite monitors. Theoretically, it would work on a giant windows-based monitor wall. Resolution.cs can even be used as a base class for changing any display configuration setting, not just resolution.

So hopefully it helps someone else.

Special thanks to these developers for their code:

• Sreejith SS Nair @ http://www.codeproject.com/Articles/6810/Dynamic-Screen-Resolution
• Mohammad Elsheimy @ http://www.codeproject.com/Articles/36664/Changing-Display-Settings-Programmatically

License: Code Project Open License (CPOL) 1.02 (http://www.codeproject.com/info/cpol10.aspx)

How To Use It:

Load the project in VS2015 and run it. (includes windows forms example of usage)

OR

Grab the resolution.cs file from this repository, add it to your project, and make it do like this:

int desiredWidth = 1024;
int desiredHeight = 768;
foreach (Screen display in Screen.AllScreens) {
  Resolution.CResolution ChangeRes = new Resolution.CResolution(desiredWidth, desiredHeight, display);
}

Known Issues:

• If your monitors are physically positioned out of the driver-determined order, icons can show up in weird places after setting resolution with this code. Workaround: Configure "Auto-Arrange" for desktop icons.

TODO:

• Create gitignore for all the junk in this repository that doesn't need to be there
• Test with a large array of monitors (currently only tested with dual monitors)