How to detect current display setting (i.e. extended, duplicate, etc)

Question

I have a C# app that uses DisplaySwitch.exe to change the display setting to internal while it is running. 

The issue is it needs to detect the computer's current setting before changing it so when the app is done it can restore it to the original setting. 

I have found different examples on display settings for size, resolution etc., but not for whether the display is on internal monitor, external monitor, extended or duplicated.

I need to do this on all versions of Windows from XP to current.

Answer 1

Hello Henry,

The issue you posted is more complex than what is answered in the Community forums and would be better suited in the TechNet community.

Please visit the link below to find a community that will offer the best support.

https://social.technet.microsoft.com/Forums/en-US/home?category=w7itpro

Hope this information is helpful. Please do let us know if you need further assistance with Windows, we’ll be glad to assist you.

Thank you.

Answer 2

Thank you