Returns a Color object based on the HSV (hue, saturation, value) color model with the passed level of transparency. Use the new form of the Picture constructor to create pictures that support the alpha channel or convert existing pictures to the new format using the code described in HasAlphaChannel.
result=HSV(hue, saturation, value [, alpha = 0])
|result||Color||An object that represents the color based on the hue, saturation, value, and transparency values.|
|hue||Double||The value of Hue in the color (0-1).|
|saturation||Double||The value of Saturation in the color (0-1).|
|value||Double||The value of Value (brightness or lightness) in the color (0-1).|
|alpha||Integer||The value of transparency in the color (0-255). Zero is completely opaque and 255 is fully transparent. If omitted, the default is 0.|
The HSV function returns a color object based on the amounts of Hue, Saturation, Value and Transparency (alpha channel) passed. The colors are amounts are represented by doubles between 0 and 1. Alpha is an Integer from 0-255.
The following example draws sample color patches in a Canvas with varying levels of transparency. With the HSV function, the range is from 0 to 255. Zero is completely opaque and 255 is completely transparent. The code is in the Paint event.
g.DrawString "Translucent = 0",210,10
g.ForeColor=hsv(1.0,1.0,1.0,76) //transparency = .3
g.DrawString "Translucent = 30%",210,80
g.ForeColor=hsv(1.,1.0,1.0,127) //transparency = .5
g.DrawString "Translucent = 50%",210,150
g.ForeColor=hsv(1.0,1.0,1.0,178) //transparency = .7
g.DrawString "Translucent = 70%",210,220
g.ForeColor=hsv(1.0,1.0,1.0,229) //transparency = .9
g.DrawString "Translucent = 90%",210,290
The result is shown here.