HSV_VfromRGB method (Main Control)
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Refer to Changing Brightness and Contrast. |
Remarks
Returns the corresponding Value (V) of a standard Windows COLORREF (cr).
Value is the amount of "black" in a color. A Value of 0 contains the most black and a Value of 255 contains the least black.
The standard Windows values for COLORREF (cr) represent either red, green, and blue color values, or an index into the bitmap's palette. A COLORREF value with the format $00BBGGRR represents the blue, green, and red color values for the specified pixel, where $BB is the blue value, $GG is the green value and $RR is the red value. If $01000000 is set in the COLORREF value ($010000ZZ), the lower 8 bits ($ZZ) represent an index into the bitmap's palette, which holds the color value. You can specify a COLORREF value (the return value of the RGB function), or you can specify a palette index as explained in Using Palette Indexes as Color Values. Please note that just because an image has a palette, does not mean the value returned by this property is a palette index.
See Also
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