Windows Dev Center

Color.A Property

Gets or sets the sRGB alpha channel value of the color.

Namespace:  Windows.UI
Assembly:  System.Runtime.WindowsRuntime (in System.Runtime.WindowsRuntime.dll)

public byte A { get; set; }

Property Value

Type: System.Byte
The sRGB alpha channel value of the color, as a value between 0 and 255.

The alpha channel of a Color structure determines the amount of transparency the Color has. An alpha value of 255 indicates the Color is completely opaque and a value of 0 indicates the color is completely transparent.

You can set this value in XAML, but only as part of the attribute syntax for properties that take a Color, or as initialization text of a Color object element. See XAML sections and Remarks sections of Color.

Supported in: Windows Phone Silverlight 8
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