L_HSVtoRGB

#include "l_bitmap.h"

L_LTDIS_API L_COLORREF L_HSVtoRGB(hsvColor)

Returns a COLORREF value that is an equivalent representation of the specified HSV value.

Returns

An L_COLORREF that contains the RGB equivalent of the specified HSV value.

Comments

This function does not support signed data images. It returns the error code ERROR_SIGNED_DATA_NOT_SUPPORTED if a signed data image is passed to this function.

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,

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.

Required DLLs and Libraries

Platforms

Windows 2000 / XP/Vista, Windows CE.

See Also

Example

//This example takes displays the H,S,V value of a HSVREF
//and the equivalent RGB components
 L_INT HSVtoRGBExample(HSVREF hsvColor)
{
   L_TCHAR  szMsg[100];
   COLORREF cr;

   wsprintf(szMsg, TEXT("Hue[%d] Saturation[%d] Value[%d]\n"), hsvColor.uH, hsvColor.uS, hsvColor.uV);
   MessageBox(NULL, szMsg, TEXT(""), MB_OK);

   cr = L_HSVtoRGB(hsvColor);

   wsprintf(szMsg, TEXT("R[%d] G[%d] B[%d]\n"), GetRValue(cr), GetBValue(cr), GetGValue(cr));
   MessageBox(NULL, szMsg, TEXT(""), MB_OK);
   return SUCCESS;
}