IMAGEEFFECTS

pIMAGEEFFECTS= ^IMAGEEFFECTS;
IMAGEEFFECTS= Packed Record
   nPixFlavor: L_INT;
   nColorScheme: L_INT;
   fHighLight: L_FLOAT;
   fShadow: L_FLOAT;
   fBrightness: L_FLOAT;
   fContrast: L_FLOAT;
   szHalfTone: Array [ 0..31 ] of L_CHAR;
end;

The IMAGEEFFECTS structure provides information about the image effects.

Member	Description
nPixFlavor	Pixel flavor used when acquiring. Possible values are (according to the TWAIN 1.9 specification):
	Value	Meaning
	TWPF_CHOCOLATE	Zero stands for the darkest shade.
	TWPF_VANILLA	Zero stands for the lightest shade.
nColorScheme	Color scheme to use when scanning is to be done. Possible values are (according to the TWAIN 1.9 specification):
	Value	Meaning
	TWPT_BW	Black and White (1 bit).
	TWPT_GRAY	8-bit Gray Scale
	TWPT_RGB	24-bit RGB Color.
	TWPT_PALETTE	8-bit Color.
	TWPT_CMY	CYAN, magenta, yellow color space.
	TWPT_CMYK	CYAN, magenta, yellow, black color space.
	TWPT_YUV	Color space type that is true color encoding. It uses one luminance value (Y) and two chroma values (UV).
	TWPT_YUVK	The same as YUV with an additional black variable.
	TWPT_CIEXYZ	Chromaticity diagram.
fHighLight	Highlight value.
fShadow	Shadow value.
fBrightness	Brightness value.
fContrast	Contrast value.
szHalfTone	A string having the name of the used pattern.

Comments

pIMAGEEFFECTS is a pointer to a IMAGEEFFECTS structure. Where the function parameter type is pIMAGEEFFECTS, you can declare an IMAGEEFFECTS variable, update the structure's fields, and pass the variable's address in the parameter. Declaring a pIMAGEEFFECTS variable is necessary only if your program requires a pointer.

IMAGEEFFECTS is used with the LTWAINPROPERTIES structure.