How can I programmaticly change windows display setting from Extend desktop to Clone desktop and the other way around ?
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If you are using Windows7 you can use DisplaySwitch.exe file with parameters /extend and /clone
Navid Rahmani
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Glad to know this executable exists! Saved me a lot of time. Also works in Window 8. Wonder if it will work in Vista. – Vippy Mar 11 '13 at 20:54
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And Windows 11 22000.51! :) – Adrian S Jul 13 '21 at 05:15
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This issue isn't going to be a simple "call this method in this .NET class" I don't believe. However, it can be done using the EnumDisplaySettingsEx() API. Here is a SO question similar to yours that has the information you need to dig into this issue:
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IAmTimCorey
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Hmmm, its long ago, but I cannot set any option for duplicating or mirroring the display with `EnumDisplaySettingsEx()` . Your Link just demonstrates how to set a screen as primary. – eDeviser Jun 20 '17 at 06:17