Palette

Functions
bool	CxImage::IsGrayScale ()
bool	CxImage::IsIndexed () const
bool	CxImage::IsSamePalette (CxImage &img, bool bCheckAlpha=true)
DWORD	CxImage::GetPaletteSize ()
RGBQUAD *	CxImage::GetPalette () const
RGBQUAD	CxImage::GetPaletteColor (BYTE idx)
bool	CxImage::GetPaletteColor (BYTE i, BYTE *r, BYTE *g, BYTE *b)
BYTE	CxImage::GetNearestIndex (RGBQUAD c)
void	CxImage::BlendPalette (COLORREF cr, long perc)
void	CxImage::SetGrayPalette ()
void	CxImage::SetPalette (DWORD n, BYTE *r, BYTE *g, BYTE *b)
void	CxImage::SetPalette (RGBQUAD *pPal, DWORD nColors=256)
void	CxImage::SetPalette (rgb_color *rgb, DWORD nColors=256)
void	CxImage::SetPaletteColor (BYTE idx, BYTE r, BYTE g, BYTE b, BYTE alpha=0)
void	CxImage::SetPaletteColor (BYTE idx, RGBQUAD c)
void	CxImage::SetPaletteColor (BYTE idx, COLORREF cr)
void	CxImage::SwapIndex (BYTE idx1, BYTE idx2)
void	CxImage::SwapRGB2BGR ()
void	CxImage::SetStdPalette ()

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Detailed Description

These functions have no effects on RGB images and in this case the returned value is always 0.

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Function Documentation

void CxImage::BlendPalette	(	COLORREF	cr,
		long	perc
	)			[inherited]

Colorize the palette.

See also:

Colorize

BYTE CxImage::GetNearestIndex

(

RGBQUAD

c

)

[inherited]

Returns the best palette index that matches a specified color.

RGBQUAD * CxImage::GetPalette

(

)

const [inherited]

returns the pointer to the first palette index

bool CxImage::GetPaletteColor	(	BYTE	i,
		BYTE *	r,
		BYTE *	g,
		BYTE *	b
	)			[inherited]

Returns the color of the specified index.

Parameters:

	i	= palette index
	r,g,b	= output color channels

RGBQUAD CxImage::GetPaletteColor

(

BYTE

idx

)

[inherited]

Returns the color of the specified index.

DWORD CxImage::GetPaletteSize

(

)

[inherited]

returns the palette dimension in byte

bool CxImage::IsGrayScale

(

)

[inherited]

Returns true if the image has 256 colors and a linear grey scale palette.

bool CxImage::IsIndexed

(

)

const [inherited]

Returns true if the image has 256 colors or less.

bool CxImage::IsSamePalette	(	CxImage &	img,
		bool	bCheckAlpha = true
	)			[inherited]

Checks if image has the same palette, if any.

Parameters:

	img	= image to compare.
	bCheckAlpha	= check also the rgbReserved field.

void CxImage::SetGrayPalette

(

)

[inherited]

Sets (or replaces) the palette to gray scale palette. The function doesn't change the pixels; for standard gray scale conversion use GrayScale().

void CxImage::SetPalette	(	rgb_color *	rgb,
		DWORD	nColors = 256
	)			[inherited]

void CxImage::SetPalette	(	RGBQUAD *	pPal,
		DWORD	nColors = 256
	)			[inherited]

void CxImage::SetPalette	(	DWORD	n,
		BYTE *	r,
		BYTE *	g,
		BYTE *	b
	)			[inherited]

void CxImage::SetPaletteColor	(	BYTE	idx,
		COLORREF	cr
	)			[inherited]

void CxImage::SetPaletteColor	(	BYTE	idx,
		RGBQUAD	c
	)			[inherited]

void CxImage::SetPaletteColor	(	BYTE	idx,
		BYTE	r,
		BYTE	g,
		BYTE	b,
		BYTE	alpha = 0
	)			[inherited]

void CxImage::SetStdPalette

(

)

[inherited]

Sets a palette with standard colors for 1, 4 and 8 bpp images.

void CxImage::SwapIndex	(	BYTE	idx1,
		BYTE	idx2
	)			[inherited]

swap two indexes in the image and their colors in the palette

void CxImage::SwapRGB2BGR

(

)

[inherited]

swap Red and Blue colors

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