Hello, I am working in C#, and I have been working on a small project I thought might come in handy with those that have many monitors, and system developers.
Problem I have run into is, I cannot for the life of me figure out how to turn off only ONE monitor I specify. So far I have come across many articles that describe using the SendMessage function, and even using something similar to this:
Code:
int deviceID;
WinApi.DisplaySetting_Results result = 0;
//manual gather - NewPrimary name ----------------------------------------------------
WinApi.DISPLAY_DEVICE ddOne = new WinApi.DISPLAY_DEVICE();
ddOne.cb = Marshal.SizeOf(ddOne);
deviceID = mnum-1;
WinApi.User_32.EnumDisplayDevices(null, deviceID, ref ddOne, 0);
string MonitorName = ddOne.DeviceName;
MessageBox.Show(MonitorName);
WinApi.DEVMODE ndm4 = NewDevMode();
ndm4.dmFields = WinApi.DEVMODE_Flags.DM_DISPLAYFLAGS;
ndm4.dmDisplayFixedOutput = 0;
result = (WinApi.DisplaySetting_Results)WinApi.User_32.ChangeDisplaySettingsEx(MonitorName, ref ndm4, (IntPtr)null, (int)WinApi.DeviceFlags.CDS_UPDATEREGISTRY, IntPtr.Zero);
MessageBox.Show(result.ToString());
That does absolutely nothing atm, as I'm still researching the subject. I have successfully turned off ALL monitors using the SendMessage command, but wish to target each monitor selectively.
So far I have been able to collect this information via my program to utilize. If anyone knows of a way to send DDC/CI commands or target the monitors by some of this information let me know.
URL
Screenshot below....not sure why it's not showing up in the post via IMG tags.
http://rfiles.com/files/screen.png
Thank you for any information
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