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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);
	}


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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