zbar::Scanner Class Reference

low-level linear intensity sample stream scanner interface. More...

List of all members.

Public Member Functions
	Scanner (Decoder &decoder)
	constructor.
	Scanner (Decoder *decoder=NULL)
	constructor.
void	reset ()
	clear all scanner state.
zbar_symbol_type_t	new_scan ()
	mark start of a new scan pass.
zbar_symbol_type_t	flush ()
	flush scanner pipeline.
zbar_symbol_type_t	scan_y (int y)
	process next sample intensity value.
Scanner &	operator<< (int y)
	process next sample intensity value.
zbar_symbol_type_t	scan_rgb24 (unsigned char *rgb)
	process next sample from RGB (or BGR) triple.
Scanner &	operator<< (unsigned char *rgb)
	process next sample from RGB (or BGR) triple.
unsigned	get_width () const
	retrieve last scanned width.
zbar_color_t	get_color () const
	retrieve last scanned color.
zbar_symbol_type_t	get_type () const
	retrieve last scan result.
	operator zbar_scanner_t * () const
	cast to C scanner
const zbar_scanner_t *	get_c_scanner () const
	retrieve C scanner

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Detailed Description

low-level linear intensity sample stream scanner interface.

identifies "bar" edges and measures width between them. optionally passes to bar width Decoder

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Constructor & Destructor Documentation

zbar::Scanner::Scanner

(

Decoder &

decoder

)

[inline]

constructor.

Parameters:

decoder

reference to a Decoder instance which will be passed scan results automatically

zbar::Scanner::Scanner

(

Decoder *

decoder = NULL

)

[inline]

constructor.

Parameters:

decoder

pointer to a Decoder instance which will be passed scan results automatically

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Member Function Documentation

void zbar::Scanner::reset

(

)

[inline]

clear all scanner state.

see zbar_scanner_reset()

zbar_symbol_type_t zbar::Scanner::new_scan

(

)

[inline]

mark start of a new scan pass.

see zbar_scanner_new_scan()

zbar_symbol_type_t zbar::Scanner::flush

(

)

[inline]

flush scanner pipeline.

see zbar_scanner_flush()

zbar_symbol_type_t zbar::Scanner::scan_y

(

int

y

)

[inline]

process next sample intensity value.

see zbar_scan_y()

Scanner& zbar::Scanner::operator<<

(

int

y

)

[inline]

process next sample intensity value.

see zbar_scan_y()

zbar_symbol_type_t zbar::Scanner::scan_rgb24

(

unsigned char *

rgb

)

[inline]

process next sample from RGB (or BGR) triple.

see zbar_scan_rgb24()

Scanner& zbar::Scanner::operator<<

(

unsigned char *

rgb

)

[inline]

process next sample from RGB (or BGR) triple.

see zbar_scan_rgb24()

unsigned zbar::Scanner::get_width

(

)

const [inline]

retrieve last scanned width.

see zbar_scanner_get_width()

zbar_color_t zbar::Scanner::get_color

(

)

const [inline]

retrieve last scanned color.

see zbar_scanner_get_color()

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The documentation for this class was generated from the following file:

• include/zbar/Scanner.h