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Screen.PrimaryScreen Property

Gets the primary display.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public static Screen PrimaryScreen { get; }

Property Value

Type: System.Windows.Forms.Screen
The primary display.

For a single display system, the primary display is the only display.

The following code example demonstrates the use of PrimaryScreen property and the GetWorkingArea method. This method requires a form containing a button named Button1.

	// This method will adjust the size of the form to utilize  
	// the working area of the screen. 
	private void Button1_Click(System.Object sender, System.EventArgs e)
	{
		// Retrieve the working rectangle from the Screen class 
		// using the PrimaryScreen and the WorkingArea properties.
		System.Drawing.Rectangle workingRectangle = 
			Screen.PrimaryScreen.WorkingArea;
		
		// Set the size of the form slightly less than size of  
		// working rectangle. 
		this.Size = new System.Drawing.Size(
			workingRectangle.Width-10, workingRectangle.Height-10);

		// Set the location so the entire form is visible. 
		this.Location = new System.Drawing.Point(5, 5);
	}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0
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