Color.A 属性

定义

获取或设置颜色的 sRGB alpha 通道值。Gets or sets the sRGB alpha channel value of the color.

public:
 property System::Byte A { System::Byte get(); void set(System::Byte value); };
public byte A { get; set; }
member this.A : byte with get, set
Public Property A As Byte

属性值

颜色的 sRGB Alpha 通道值,介于 0 到 255 之间。The sRGB alpha channel value of the color, a value between 0 and 255.

注解

Color结构的 alpha 通道确定Color具有的透明度。The alpha channel of a Color structure determines the amount of transparency the Color has. Alpha 值255指示Color完全不透明, 值为0表示颜色完全透明。An alpha value of 255 indicates the Color is completely opaque and a value of 0 indicates the color is completely transparent.

G ScR ScG将同步ScB结构的RA通道 (、、ScA、) 和 ScRGB 通道 (、、、)。 B sRGB Color属性.The sRGB channels (A, R, G, B) and the ScRGB channels (ScA, ScR, ScG, ScB) of the Color structure are synchronized properties. A例如, 如果ScA Sc修改了 alpha 通道, 则使用方案支持的0-1 范围将alpha通道转换为等效的值。ScRGB sRGBFor example, when A, the sRGB alpha channel, is modified, the ScRGB alpha channel, ScA, is converted to the equivalent value using the 0-1 range that the Sc scheme supports.

适用于