Alpha()

语法

Result = Alpha(Color)
概要
Returns the alpha component of a color value.

参数

Color The color value. This must be a 32-bit RGBA value.

返回值

Returns the value of the alpha component. The result will be between 0 and 255. A value of 0 means fully transparent and a value of 255 means fully opaque.

Remarks

To combine red, green, blue and alpha values in order to create a 32-bit RGB color, use the RGBA() function. These functions are useful to perform Drawing operations.

参阅

Red(), Green(), Blue(), RGBA()

已支持操作系统

所有

2DDrawing Index - AlphaBlend() ->