This method maps the darkest pixels of the image to color1, brightest pixels with color2, and other pixels to a linear combination of color1 and color2, depending on their brightness.

'Declaration
 
Public Shared Sub Duotone( _
   ByVal page As ImGearRasterPage, _
   ByVal color1 As ImGearPixel, _
   ByVal color2 As ImGearPixel _
) 

'Usage
 
Dim page As ImGearRasterPage
Dim color1 As ImGearPixel
Dim color2 As ImGearPixel
 
ImGearEffects.Duotone(page, color1, color2)

public static void Duotone( 
   ImGearRasterPage page,
   ImGearPixel color1,
   ImGearPixel color2
)

public: static void Duotone( 
   ImGearRasterPage* page,
   ImGearPixel* color1,
   ImGearPixel* color2
) 

public:
static void Duotone( 
   ImGearRasterPage^ page,
   ImGearPixel^ color1,
   ImGearPixel^ color2
)