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