I want to make a if to know if the screen is in "Extend" mode.
Example: (Win + P)
HowcanIdothisinC#:
if(?)//sópodeentrarnoif,seatelaestánomodo"Estender".
{
SegundaTela formulario = new SegundaTela();
Screen[] telas = Screen.AllScreens;
Rectangle bounds = telas[1].Bounds; // pode ser outro índice.
formulario.SetBounds(bounds.X, bounds.Y, bounds.Width, bounds.Height);
formulario.StartPosition = FormStartPosition.Manual;
formulario.Show();
}
Just check if there is more than Screen :
if (Screen.AllScreens.Length > 1)
{
//Estendido
}
else
{
//Duplicado, ou apenas 1 tela
}
You did not specify, but this code is for
winformsbecause the Screen class is derived fromSystem.Windows.Forms
I do not know something ready in .NET to use the "Extend" of Windows. You may be able to do this with the Windows API . / p>
In Windows 7, Windows 8 and 10 you can use System DisplaySwitch.exe with the /extend argument. For other versions of the system you will have to test. I do not know if Win + P was already shortcut in Vista.
var processo = new Process { StartInfo = { FileName = "DisplaySwitch.exe", Arguments = "/extend" } };
processo.Start();
In addition to /extend , there are other forms of presentation. You can use them with the arguments:
/external : only the second screen; /internal : only the computer screen; /clone : duplicates the screens.