Header

Fingerprint handling


Detailed Description

Functions for saving fingerprints.


Modules

 Examples
 Fingerprint example

Functions

static int fps_fingertonist (gxHANDLE handle, const wchar_t *filename, gxVARIANT fields)
 Saves the fingers to an nist file (Unicode version).
static int fps_fingertonista (gxHANDLE handle, const char *filename, gxVARIANT fields)
 Saves the fingers to an nist file (ASCII version).
static int fps_fingertonistmem (gxHANDLE handle, void **buffer, int *buflen, gxVARIANT fields)
 Saves the fingers to a memory area as a nist file.
static int fps_fingerminutiatomem (gxHANDLE handle, void **buffer, int *buflen, gxVARIANT fields)
 Saves the minutiae to a memory area.
static int fps_fingerminutiatofile (gxHANDLE handle, const wchar_t *filename, gxVARIANT fields)
 Saves the minutiae to a file.
static int fps_fingerminutiatofilea (gxHANDLE handle, const char *filename, gxVARIANT fields)
 Saves the minutiae to a file (ASCII version).
static int fps_nistfingerquality (gxHANDLE handle, int *quality, int position)
 Returns the NIST Finger Image Quality value from a finger.


Function Documentation

static int fps_fingertonist ( gxHANDLE  handle,
const wchar_t *  filename,
gxVARIANT  fields 
) [static]

Saves the fingers to an nist file (Unicode version).

Parameters:
handle Handle of the fpsapi module.
filename The name of the file where to save the data.
fields List of fields to add to the record.
Returns:
On error false is returned and the error code/string in the GX system is set appropriately. ( see gx_geterror() )

References gx_call().

static int fps_fingertonista ( gxHANDLE  handle,
const char *  filename,
gxVARIANT  fields 
) [static]

Saves the fingers to an nist file (ASCII version).

Parameters:
handle Handle of the fpsapi module.
filename The name of the file where to save the data.
fields List of fields to add to the record.
Returns:
On error false is returned and the error code/string in the GX system is set appropriately. ( see gx_geterror() )

References gx_call().

static int fps_fingertonistmem ( gxHANDLE  handle,
void **  buffer,
int *  buflen,
gxVARIANT  fields 
) [static]

Saves the fingers to a memory area as a nist file.

Parameters:
handle Handle of the fpsapi module.
buffer Pointer to the memory area pointer that is large enough or NULL.
buflen Size of memory area.
fields List of fields to add to the record.
Returns:
On error false is returned and the error code/string in the GX system is set appropriately. ( see gx_geterror() )

References gx_call().

static int fps_fingerminutiatomem ( gxHANDLE  handle,
void **  buffer,
int *  buflen,
gxVARIANT  fields 
) [static]

Saves the minutiae to a memory area.

Parameters:
handle Handle of the fpsapi module.
buffer Pointer to the memory area pointer that is large enough or NULL.
buflen Size of memory area.
fields 
Returns:
On error false is returned and the error code/string in the GX system is set appropriately. ( see gx_geterror() )

References gx_call().

static int fps_fingerminutiatofile ( gxHANDLE  handle,
const wchar_t *  filename,
gxVARIANT  fields 
) [static]

Saves the minutiae to a file.

Parameters:
handle Handle of the fpsapi module.
filename The name of the file where to save the data.
Returns:
On error false is returned and the error code/string in the GX system is set appropriately. ( see gx_geterror() )

References gx_call().

static int fps_fingerminutiatofilea ( gxHANDLE  handle,
const char *  filename,
gxVARIANT  fields 
) [static]

Saves the minutiae to a file (ASCII version).

Parameters:
handle Handle of the fpsapi module.
filename The name of the file where to save the data.
Returns:
On error false is returned and the error code/string in the GX system is set appropriately. ( see gx_geterror() )

References gx_call().

static int fps_nistfingerquality ( gxHANDLE  handle,
int *  quality,
int  position 
) [static]

Returns the NIST Finger Image Quality value from a finger.

Parameters:
handle Handle of the fpsapi module.
quality NIST Finger Image Quality value.
position The finger position. The possible values are defined in the FPS_POSITION enumeration.
Returns:
On error false is returned and the error code/string in the GX system is set appropriately. ( see gx_geterror() )

References gx_call().


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