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typedef struct _HSVREF 
   L_UCHAR uH; 
   L_UCHAR uS; 
   L_UCHAR uV; 
   L_UCHAR uReserved; 

The HSVREF structure contains the Hue, Saturation and Value of a specific color.



Hue of the color.


Saturation of the color.


Value of the color.


Reserved for future use.


pHSVREF is a pointer to an HSVREF structure.

The HSV value is the Hue ,Saturation, Value color space. Traditionally, hue ranges from 0 to 359. However, the hue component of the HSVREF is represented by an unsigned byte. Therefore, the range of 0 to 359 is remapped to a range of 0..255. For example,

Color Hue(0..359) Hue(0..255)
Red 0 0
Green 120 85
Blue 240 170

Saturation ranges from 0 to 255 where 0 means the highest amount of white and 255 means no white.

Value ranges from 0 to 255 where 0 means highest amount of black and 255 means no black.

The structure is used by:

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