A Property
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Color.A Property

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

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

Namespace:  System.Windows.Media
Assembly:  System.Windows (in System.Windows.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.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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