Compression handling

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Detailed Description

Functions for compression handling.

Functions
int	gx_gzcompress (gxHANDLE handle, void *target, int *tgtlen, const void *source, int srclen, int level)
	Compresses a memory area.
int	gx_gzcompressd (void *target, int *tgtlen, const void *source, int srclen, int level)
	Compresses a memory area.
int	gx_gzcompress (void *target, int *tgtlen, const void *source, int srclen, int level)
	Compresses a memory area.
int	gx_gzuncompress (gxHANDLE handle, void *target, int *tgtlen, const void *source, int srclen)
	Decompresses a compressed data from memory.
int	gx_gzuncompressd (void *target, int *tgtlen, const void *source, int srclen)
	Decompresses a compressed data from memory.
int	gx_gzuncompress (void *target, int *tgtlen, const void *source, int srclen)
	Decompresses a compressed data from memory.
int	gx_creategz (gxHANDLE handle, const wchar_t *filename, int level, int strategy)
	Creates a .gz file (Unicode version).
int	gx_creategza (gxHANDLE handle, const char *filename, int level, int strategy)
	Creates a .gz file (ASCII version).
int	gx_creategz (gxHANDLE handle, const char *filename, int level, int strategy)
	Creates a .gz file (ASCII version).
int	gx_opengz (gxHANDLE handle, const wchar_t *filename)
	Opens the .gz file (Unicode version).
int	gx_opengza (gxHANDLE handle, const char *filename)
	Opens the .gz file (ASCII version).
int	gx_opengz (gxHANDLE handle, const char *filename)
	Opens the .gz file (ASCII version).
int	gx_closegz (gxHANDLE handle)
	Closes an opened or created .gz file.
int	gx_readgz (gxHANDLE handle, void *buffer, int *buflen)
	Reads data from an opened .gz file.
int	gx_writegz (gxHANDLE handle, const void *buffer, int buflen)
	Writes data to a created .gz file.
int	gx_createzip (gxHANDLE handle, const wchar_t *filename, int mode)
	Creates a ZIP file (Unicode version).
int	gx_createzipa (gxHANDLE handle, const char *filename, int mode)
	Creates a ZIP file (ASCII version).
int	gx_createzip (gxHANDLE handle, const char *filename, int mode)
	Creates a ZIP file (ASCII version).
int	gx_openzip (gxHANDLE handle, const wchar_t *filename)
	Opens a ZIP file (Unicode version).
int	gx_openzipa (gxHANDLE handle, const char *filename)
	Opens a ZIP file (ASCII version).
int	gx_openzip (gxHANDLE handle, const char *filename)
	Opens a ZIP file (ASCII version).
int	gx_createzipinmemory (gxHANDLE handle, int mode)
	Creates a ZIP file in memory.
int	gx_getzipinmemory (gxHANDLE handle, void **pbuffer, int *pbuflen)
	Get the created ZIP file in memory.
int	gx_openzipinmemory (gxHANDLE handle, void *buffer, int buflen)
	Opens a ZIP file in memory.
int	gx_closezip (gxHANDLE handle, const wchar_t *comment)
	It closes an opened/created ZIP file (Unicode version).
int	gx_closezipa (gxHANDLE handle, const char *comment)
	It closes an opened/created ZIP file (ASCII version).
int	gx_closezip (gxHANDLE handle, const char *comment=(const char *) 0)
	It closes an opened/created ZIP file (ASCII version).
int	gx_getzipinfo (gxHANDLE handle, struct GX_PARM_GETZIPINFO *info)
	Gives informations about the opened ZIP file.
int	gx_getzipcomment (gxHANDLE handle, wchar_t *target, int *tlen)
	Reads the comment from the archive (Unicode version).
int	gx_getzipcommenta (gxHANDLE handle, char *target, int *tlen)
	Reads the comment from the archive (ASCII version).
int	gx_getzipcomment (gxHANDLE handle, char *target, int *tlen)
	Reads the comment from the archive (ASCII version).
int	gx_createfileinzip (gxHANDLE handle, struct GX_PARM_CREATEFILEINZIPW *cfz)
	Creates a file in the archive (Unicode version).
int	gx_createfileinzipa (gxHANDLE handle, struct GX_PARM_CREATEFILEINZIP *cfz)
	Creates a file in the archive (ASCII version).
int	gx_createfileinzip (gxHANDLE handle, struct GX_PARM_CREATEFILEINZIP *cfz)
	Creates a file in the archive (ASCII version).
int	gx_writetofileinzip (gxHANDLE handle, const void *buffer, int buflen)
	Writes data to the current file in the archive.
int	gx_closefileinzip (gxHANDLE handle)
	Closes the current file in the archive.
int	gx_firstfileinzip (gxHANDLE handle, GX_ZIPFILEDETINFOW *finfo)
	Sets marker to the first file in the archive (Unicode version).
int	gx_firstfileinzipa (gxHANDLE handle, GX_ZIPFILEDETINFO *finfo)
	Sets marker to the first file in the archive.
int	gx_firstfileinzip (gxHANDLE handle, GX_ZIPFILEDETINFO *finfo)
	Sets marker to the first file in the archive.
int	gx_nextfileinzip (gxHANDLE handle, GX_ZIPFILEDETINFOW *finfo)
	Sets marker to the next file in the archive (Unicode version).
int	gx_nextfileinzipa (gxHANDLE handle, GX_ZIPFILEDETINFO *finfo)
	Sets marker to the next file in the archive.
int	gx_nextfileinzip (gxHANDLE handle, GX_ZIPFILEDETINFO *finfo)
	Sets marker to the next file in the archive.
int	gx_locatefileinzip (gxHANDLE handle, GX_ZIPFILEDETINFOW *finfo, const wchar_t *filename, int casesensitivity)
	Sets marker to the specified file in the archive (Unicode version).
int	gx_locatefileinzipa (gxHANDLE handle, GX_ZIPFILEDETINFO *finfo, const char *filename, int casesensitivity)
	Sets marker to the specified file in the archive (ASCII version).
int	gx_locatefileinzip (gxHANDLE handle, GX_ZIPFILEDETINFO *finfo, const char *filename, int casesensitivity)
	Sets marker to the specified file in the archive (ASCII version).
int	gx_fileinfoinzip (gxHANDLE handle, GX_ZIPFILEDETINFOW *finfo)
	Gives information about a marked file in the archive (Unicode version).
int	gx_fileinfoinzipa (gxHANDLE handle, GX_ZIPFILEDETINFO *finfo)
	Gives information about a marked file in the archive (ASCII version).
int	gx_fileinfoinzip (gxHANDLE handle, GX_ZIPFILEDETINFO *finfo)
	Gives information about a marked file in the archive (ASCII version).
int	gx_openfileinzip (gxHANDLE handle, int *method, int *level, const wchar_t *password)
	Opens a marked file in the archive (Unicode version).
int	gx_openfileinzipa (gxHANDLE handle, int *method, int *level, const char *password)
	Opens a marked file in the archive.
int	gx_openfileinzip (gxHANDLE handle, int *method, int *level, const char *password=(const char *) 0)
	Opens a marked file in the archive.
int	gx_readfromfileinzip (gxHANDLE handle, void *target, int *tlen)
	It reads a content from a marked file in the archive.
int	gx_calculatezipcrc (gxHANDLE handle, unsigned int *crc, const void *buffer, int buflen)
	Calculates CRC-32 value from the specified buffer.
int	gx_calculatezipcrcd (unsigned int *crc, const void *buffer, int buflen)
	Calculates CRC-32 value from the specified buffer.
int	gx_calculatezipcrc (unsigned int *crc, const void *buffer, int buflen)
	Calculates CRC-32 value from the specified buffer.
int	gx_getinitialzipcrc (gxHANDLE handle, unsigned int *crc)
	Returns the initial CRC.
int	gx_getinitialzipcrcd (unsigned int *crc)
	Returns the initial CRC.
int	gx_getinitialzipcrc (unsigned int *crc)
	Returns the initial CRC.
int	gx_readlexfieldzip (gxHANDLE handle, void *buffer, int *buflen)
	Reads the local extra field of the marked file in the archive.

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Function Documentation

int gx_gzcompress	(	gxHANDLE	handle,
		void *	target,
		int *	tgtlen,
		const void *	source,
		int	srclen,
		int	level
	)			[inline]

Compresses a memory area.

Parameters:

	handle	Handle of an opened ZLIB module.
	target	Pointer to an allocated area where the function writes the compressed data.
	tgtlen	Length of the allocated area. The function updates it with the length of the compressed data.
	source	Pointer to an uncompressed data.
	srclen	Length of the uncompressed data.
	level	Compression level 0-9 (see GX_ZLEVELS).

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxGZip::Compress(), and gx_gzcompressd().

int gx_gzcompressd	(	void *	target,
		int *	tgtlen,
		const void *	source,
		int	srclen,
		int	level
	)			[inline]

Compresses a memory area.

Parameters:

	target	Pointer to an allocated area where the function writes the compressed data.
	tgtlen	Length of the allocated area. The function updates it with the length of the compressed data.
	source	Pointer to an uncompressed data.
	srclen	Length of the uncompressed data.
	level	Compression level 0-9 (see GX_ZLEVELS).

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_direct(), and gx_gzcompress().

Referenced by gx_gzcompress().

int gx_gzcompress	(	void *	target,
		int *	tgtlen,
		const void *	source,
		int	srclen,
		int	level
	)			[inline]

Compresses a memory area.

Parameters:

	target	Pointer to an allocated area where the function writes the compressed data.
	tgtlen	Length of the allocated area. The function updates it with the length of the compressed data.
	source	Pointer to an uncompressed data.
	srclen	Length of the uncompressed data.
	level	Compression level 0-9 (see GX_ZLEVELS).

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_gzcompressd().

int gx_gzuncompress	(	gxHANDLE	handle,
		void *	target,
		int *	tgtlen,
		const void *	source,
		int	srclen
	)			[inline]

Decompresses a compressed data from memory.

Parameters:

	handle	Handle of an opened ZLIB module.
	target	Pointer to an allocated area where the function writes the uncompressed data.
	tgtlen	Length of the allocated area. The function updates it with the length of the uncompressed data.
	source	Pointer to a compressed data.
	srclen	Length of the compressed 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().

Referenced by gx_gzuncompressd(), and gxGZip::Uncompress().

int gx_gzuncompressd	(	void *	target,
		int *	tgtlen,
		const void *	source,
		int	srclen
	)			[inline]

Decompresses a compressed data from memory.

Parameters:

	target	Pointer to an allocated area where the function writes the uncompressed data.
	tgtlen	Length of the allocated area. The function updates it with the length of the uncompressed data.
	source	Pointer to a compressed data.
	srclen	Length of the compressed data.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_direct(), and gx_gzuncompress().

Referenced by gx_gzuncompress().

int gx_gzuncompress	(	void *	target,
		int *	tgtlen,
		const void *	source,
		int	srclen
	)			[inline]

Decompresses a compressed data from memory.

Parameters:

	target	Pointer to an allocated area where the function writes the uncompressed data.
	tgtlen	Length of the allocated area. The function updates it with the length of the uncompressed data.
	source	Pointer to a compressed data.
	srclen	Length of the compressed data.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_gzuncompressd().

int gx_creategz	(	gxHANDLE	handle,
		const wchar_t *	filename,
		int	level,
		int	strategy
	)			[inline]

Creates a .gz file (Unicode version).

Use it when you can compress data into a single file.

Parameters:

	handle	Handle of an opened ZLIB module.
	filename	Path and name of the .gz file.
	level	Compression level (see GX_ZLEVELS).
	strategy	Compression strategy (see GX_ZSTRATEGIES).

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxGZip::Create().

int gx_creategza	(	gxHANDLE	handle,
		const char *	filename,
		int	level,
		int	strategy
	)			[inline]

Creates a .gz file (ASCII version).

Use it when you can compress data into a single file.

Parameters:

	handle	Handle of an opened ZLIB module.
	filename	Path and name of the .gz file.
	level	Compression level (see GX_ZLEVELS).
	strategy	Compression strategy (see GX_ZSTRATEGIES).

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxGZip::Create(), and gx_creategz().

int gx_creategz	(	gxHANDLE	handle,
		const char *	filename,
		int	level,
		int	strategy
	)			[inline]

Creates a .gz file (ASCII version).

Use it when you can compress data into a single file.

Parameters:

	handle	Handle of an opened ZLIB module.
	filename	Path and name of the .gz file.
	level	Compression level (see GX_ZLEVELS).
	strategy	Compression strategy (see GX_ZSTRATEGIES).

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_creategza().

int gx_opengz	(	gxHANDLE	handle,
		const wchar_t *	filename
	)			[inline]

Opens the .gz file (Unicode version).

Parameters:

	handle	Handle of an opened ZLIB module.
	filename	Path and name of the .gz file.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxGZip::Open().

int gx_opengza	(	gxHANDLE	handle,
		const char *	filename
	)			[inline]

Opens the .gz file (ASCII version).

Parameters:

	handle	Handle of an opened ZLIB module.
	filename	Path and name of the .gz file.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gx_opengz(), and gxGZip::Open().

int gx_opengz	(	gxHANDLE	handle,
		const char *	filename
	)			[inline]

Opens the .gz file (ASCII version).

Parameters:

	handle	Handle of an opened ZLIB module.
	filename	Path and name of the .gz file.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_opengza().

int gx_closegz

(

gxHANDLE

handle

)

[inline]

Closes an opened or created .gz file.

Parameters:

handle

Handle of an opened ZLIB module.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxGZip::Close().

int gx_readgz	(	gxHANDLE	handle,
		void *	buffer,
		int *	buflen
	)			[inline]

Reads data from an opened .gz file.

Parameters:

	handle	Handle of an opened ZLIB module.
	buffer	Pointer to an allocated area where the function reads data.
	buflen	Length of the allocated area, the function updates it with length of unpacked 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().

Referenced by gxGZip::Read().

int gx_writegz	(	gxHANDLE	handle,
		const void *	buffer,
		int	buflen
	)			[inline]

Writes data to a created .gz file.

Parameters:

	handle	Handle of an opened ZLIB module.
	buffer	Pointer to an unpacked data.
	buflen	Length of the unpacked 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().

Referenced by gxGZip::Write().

int gx_createzip	(	gxHANDLE	handle,
		const wchar_t *	filename,
		int	mode
	)			[inline]

Creates a ZIP file (Unicode version).

Parameters:

	handle	Handle of an opened ZLIB module.
	filename	Path and name of the ZIP file.
	mode	Create mode (see GX_CREATEZIPMODES).

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::Create().

int gx_createzipa	(	gxHANDLE	handle,
		const char *	filename,
		int	mode
	)			[inline]

Creates a ZIP file (ASCII version).

Parameters:

	handle	Handle of an opened ZLIB module.
	filename	Path and name of the ZIP file.
	mode	Create mode (see GX_CREATEZIPMODES).

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::Create(), and gx_createzip().

int gx_createzip	(	gxHANDLE	handle,
		const char *	filename,
		int	mode
	)			[inline]

Creates a ZIP file (ASCII version).

Parameters:

	handle	Handle of an opened ZLIB module.
	filename	Path and name of the ZIP file.
	mode	Create mode (see GX_CREATEZIPMODES).

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_createzipa().

int gx_openzip	(	gxHANDLE	handle,
		const wchar_t *	filename
	)			[inline]

Opens a ZIP file (Unicode version).

Parameters:

	handle	Handle of an opened ZLIB module.
	filename	Path and name of the ZIP file.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::Open().

int gx_openzipa	(	gxHANDLE	handle,
		const char *	filename
	)			[inline]

Opens a ZIP file (ASCII version).

Parameters:

	handle	Handle of an opened ZLIB module.
	filename	Path and name of the ZIP file.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gx_openzip(), and gxZip::Open().

int gx_openzip	(	gxHANDLE	handle,
		const char *	filename
	)			[inline]

Opens a ZIP file (ASCII version).

Parameters:

	handle	Handle of an opened ZLIB module.
	filename	Path and name of the ZIP file.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_openzipa().

int gx_createzipinmemory	(	gxHANDLE	handle,
		int	mode
	)			[inline]

Creates a ZIP file in memory.

Parameters:

	handle	Handle of an opened ZLIB module.
	mode	Create mode (see GX_CREATEZIPMODES).

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::CreateZipInMemory().

int gx_getzipinmemory	(	gxHANDLE	handle,
		void **	pbuffer,
		int *	pbuflen
	)			[inline]

Get the created ZIP file in memory.

Parameters:

	handle	Handle of an opened ZLIB module.
	pbuffer	Pointer to the ZIP file in memory.
	pbuflen	Pointer to the length of the ZIP file in memory.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::GetZipInMemory().

int gx_openzipinmemory	(	gxHANDLE	handle,
		void *	buffer,
		int	buflen
	)			[inline]

Opens a ZIP file in memory.

Parameters:

	handle	Handle of an opened ZLIB module.
	buffer	The ZIP file in memory.
	buflen	The length of the ZIP file in memory.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::OpenZipInMemory().

int gx_closezip	(	gxHANDLE	handle,
		const wchar_t *	comment
	)			[inline]

It closes an opened/created ZIP file (Unicode version).

Parameters:

	handle	Handle of an opened ZLIB module.
	comment	Comment string for the ZIP file.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::Close().

int gx_closezipa	(	gxHANDLE	handle,
		const char *	comment
	)			[inline]

It closes an opened/created ZIP file (ASCII version).

Parameters:

	handle	Handle of an opened ZLIB module.
	comment	Comment string for the ZIP file.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::Close(), and gx_closezip().

int gx_closezip	(	gxHANDLE	handle,
		const char *	comment = (const char *)0
	)			[inline]

It closes an opened/created ZIP file (ASCII version).

Parameters:

	handle	Handle of an opened ZLIB module.
	comment	Comment string for the ZIP file.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_closezipa().

int gx_getzipinfo	(	gxHANDLE	handle,
		struct GX_PARM_GETZIPINFO *	info
	)			[inline]

Gives informations about the opened ZIP file.

Parameters:

	handle	Handle of an opened ZLIB module.
	info	Pointer to an information structure where the function fills it.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::GetCommentLength(), gxZip::GetInfo(), and gxZip::GetNEntries().

int gx_getzipcomment	(	gxHANDLE	handle,
		wchar_t *	target,
		int *	tlen
	)			[inline]

Reads the comment from the archive (Unicode version).

Parameters:

	handle	Handle of an opened ZLIB module.
	target	Pointer to an allocated area where the function writes the comment string.
	tlen	Length of the allocated area in characters.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::GetComment().

int gx_getzipcommenta	(	gxHANDLE	handle,
		char *	target,
		int *	tlen
	)			[inline]

Reads the comment from the archive (ASCII version).

Parameters:

	handle	Handle of an opened ZLIB module.
	target	Pointer to an allocated area where the function writes the comment string.
	tlen	Length of the allocated area.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::GetCommentA(), and gx_getzipcomment().

int gx_getzipcomment	(	gxHANDLE	handle,
		char *	target,
		int *	tlen
	)			[inline]

Reads the comment from the archive (ASCII version).

Parameters:

	handle	Handle of an opened ZLIB module.
	target	Pointer to an allocated area where the function writes the comment string.
	tlen	Length of the allocated area.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_getzipcommenta().

int gx_createfileinzip	(	gxHANDLE	handle,
		struct GX_PARM_CREATEFILEINZIPW *	cfz
	)			[inline]

Creates a file in the archive (Unicode version).

Parameters:

	handle	Handle of an opened ZLIB module.
	cfz	Pointer to the description structure.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::CreateFile().

int gx_createfileinzipa	(	gxHANDLE	handle,
		struct GX_PARM_CREATEFILEINZIP *	cfz
	)			[inline]

Creates a file in the archive (ASCII version).

Parameters:

	handle	Handle of an opened ZLIB module.
	cfz	Pointer to the description structure.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::CreateFile(), and gx_createfileinzip().

int gx_createfileinzip	(	gxHANDLE	handle,
		struct GX_PARM_CREATEFILEINZIP *	cfz
	)			[inline]

Creates a file in the archive (ASCII version).

Parameters:

	handle	Handle of an opened ZLIB module.
	cfz	Pointer to the description structure.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_createfileinzipa().

int gx_writetofileinzip	(	gxHANDLE	handle,
		const void *	buffer,
		int	buflen
	)			[inline]

Writes data to the current file in the archive.

Parameters:

	handle	Handle of an opened ZLIB module.
	buffer	Pointer to data.
	buflen	Length of data in bytes.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::WriteToFile().

int gx_closefileinzip

(

gxHANDLE

handle

)

[inline]

Closes the current file in the archive.

Parameters:

handle

Handle of an opened ZLIB module.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::CloseFile().

int gx_firstfileinzip	(	gxHANDLE	handle,
		GX_ZIPFILEDETINFOW *	finfo
	)			[inline]

Sets marker to the first file in the archive (Unicode version).

Parameters:

	handle	Handle of an opened ZLIB module.
	finfo	Pointer to the information structure. The function will fill it.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::FirstFile().

int gx_firstfileinzipa	(	gxHANDLE	handle,
		GX_ZIPFILEDETINFO *	finfo
	)			[inline]

Sets marker to the first file in the archive.

Parameters:

	handle	Handle of an opened ZLIB module.
	finfo	Pointer to the information structure. The function will fill it.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gx_firstfileinzip().

int gx_firstfileinzip	(	gxHANDLE	handle,
		GX_ZIPFILEDETINFO *	finfo
	)			[inline]

Sets marker to the first file in the archive.

Parameters:

	handle	Handle of an opened ZLIB module.
	finfo	Pointer to the information structure. The function will fill it.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_firstfileinzipa().

int gx_nextfileinzip	(	gxHANDLE	handle,
		GX_ZIPFILEDETINFOW *	finfo
	)			[inline]

Sets marker to the next file in the archive (Unicode version).

Parameters:

	handle	Handle of an opened ZLIB module.
	finfo	Pointer to the information structure. The function will fill it.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::NextFile().

int gx_nextfileinzipa	(	gxHANDLE	handle,
		GX_ZIPFILEDETINFO *	finfo
	)			[inline]

Sets marker to the next file in the archive.

Parameters:

	handle	Handle of an opened ZLIB module.
	finfo	Pointer to the information structure. The function will fill it.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gx_nextfileinzip().

int gx_nextfileinzip	(	gxHANDLE	handle,
		GX_ZIPFILEDETINFO *	finfo
	)			[inline]

Sets marker to the next file in the archive.

Parameters:

	handle	Handle of an opened ZLIB module.
	finfo	Pointer to the information structure. The function will fill it.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_nextfileinzipa().

int gx_locatefileinzip	(	gxHANDLE	handle,
		GX_ZIPFILEDETINFOW *	finfo,
		const wchar_t *	filename,
		int	casesensitivity
	)			[inline]

Sets marker to the specified file in the archive (Unicode version).

Parameters:

	handle	Handle of an opened ZLIB module.
	finfo	Pointer to the information structure. The function will fill it.
	filename	Name of the file in the archive.
	casesensitivity	Case sensitivity signification. It can be: 1: comparision is case sensitive (like wcscmp) 2: comparision is not case sensitive (like wcscmpi/wcscasecmp) 0: the default case sensitivity of the operation system (like 1 on Unix, 2 on Windows)

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::LocateFile().

int gx_locatefileinzipa	(	gxHANDLE	handle,
		GX_ZIPFILEDETINFO *	finfo,
		const char *	filename,
		int	casesensitivity
	)			[inline]

Sets marker to the specified file in the archive (ASCII version).

Parameters:

	handle	Handle of an opened ZLIB module.
	finfo	Pointer to the information structure. The function will fill it.
	filename	Name of the file in the archive.
	casesensitivity	Case sensitivity signification. It can be: 1: comparision is case sensitive (like strcmp) 2: comparision is not case sensitive (like strcmpi/strcasecmp) 0: the default case sensitivity of the operation system (like 1 on Unix, 2 on Windows)

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gx_locatefileinzip(), and gxZip::LocateFile().

int gx_locatefileinzip	(	gxHANDLE	handle,
		GX_ZIPFILEDETINFO *	finfo,
		const char *	filename,
		int	casesensitivity
	)			[inline]

Sets marker to the specified file in the archive (ASCII version).

Parameters:

	handle	Handle of an opened ZLIB module.
	finfo	Pointer to the information structure. The function will fill it.
	filename	Name of the file in the archive.
	casesensitivity	Case sensitivity signification. It can be: 1: comparision is case sensitive (like strcmp) 2: comparision is not case sensitive (like strcmpi/strcasecmp) 0: the default case sensitivity of the operation system (like 1 on Unix, 2 on Windows)

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_locatefileinzipa().

int gx_fileinfoinzip	(	gxHANDLE	handle,
		GX_ZIPFILEDETINFOW *	finfo
	)			[inline]

Gives information about a marked file in the archive (Unicode version).

Parameters:

	handle	Handle of an opened ZLIB module.
	finfo	Pointer to the information structure. The function will fill it.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::FileInfo(), gxZip::GetFileComment(), gxZip::GetFileDetInfo(), gxZip::GetFileInfo(), and gxZip::GetFileName().

int gx_fileinfoinzipa	(	gxHANDLE	handle,
		GX_ZIPFILEDETINFO *	finfo
	)			[inline]

Gives information about a marked file in the archive (ASCII version).

Parameters:

	handle	Handle of an opened ZLIB module.
	finfo	Pointer to the information structure. The function will fill it.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::GetFileCommentA(), gxZip::GetFileNameA(), and gx_fileinfoinzip().

int gx_fileinfoinzip	(	gxHANDLE	handle,
		GX_ZIPFILEDETINFO *	finfo
	)			[inline]

Gives information about a marked file in the archive (ASCII version).

Parameters:

	handle	Handle of an opened ZLIB module.
	finfo	Pointer to the information structure. The function will fill it.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_fileinfoinzipa().

int gx_openfileinzip	(	gxHANDLE	handle,
		int *	method,
		int *	level,
		const wchar_t *	password
	)			[inline]

Opens a marked file in the archive (Unicode version).

Parameters:

	handle	Handle of an opened ZLIB module.
	method	Pointer to an integer. The function will update it to the compression method.
	level	Pointer to an integer. The function will update it to the compression level.
	password	Password string if the file is encoded. It can be NULL.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::OpenFile().

int gx_openfileinzipa	(	gxHANDLE	handle,
		int *	method,
		int *	level,
		const char *	password
	)			[inline]

Opens a marked file in the archive.

Parameters:

	handle	Handle of an opened ZLIB module.
	method	Pointer to an integer. The function will update it to the compression method.
	level	Pointer to an integer. The function will update it to the compression level.
	password	Password string if the file is encoded. It can be NULL.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gx_openfileinzip(), and gxZip::OpenFile().

int gx_openfileinzip	(	gxHANDLE	handle,
		int *	method,
		int *	level,
		const char *	password = (const char *)0
	)			[inline]

Opens a marked file in the archive.

Parameters:

	handle	Handle of an opened ZLIB module.
	method	Pointer to an integer. The function will update it to the compression method.
	level	Pointer to an integer. The function will update it to the compression level.
	password	Password string if the file is encoded. It can be NULL.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_openfileinzipa().

int gx_readfromfileinzip	(	gxHANDLE	handle,
		void *	target,
		int *	tlen
	)			[inline]

It reads a content from a marked file in the archive.

Parameters:

	handle	Handle of an opened ZLIB module.
	target	Pointer to an allocated area.
	tlen	Length of the allocated area in bytes.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::ReadFromFile().

int gx_calculatezipcrc	(	gxHANDLE	handle,
		unsigned int *	crc,
		const void *	buffer,
		int	buflen
	)			[inline]

Calculates CRC-32 value from the specified buffer.

Parameters:

	handle	Handle of an opened ZLIB module.
	crc	The initial CRC-32 value (gx_getinitialzipcrc()), the function will be updated it.
	buffer	Pointer to data.
	buflen	Length of the data in bytes.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::CalculateCRC(), and gx_calculatezipcrcd().

int gx_calculatezipcrcd	(	unsigned int *	crc,
		const void *	buffer,
		int	buflen
	)			[inline]

Calculates CRC-32 value from the specified buffer.

Parameters:

	crc	The initial CRC-32 value (gx_getinitialzipcrc()), the function will be updated it.
	buffer	Pointer to data.
	buflen	Length of the data in bytes.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_calculatezipcrc(), and gx_direct().

Referenced by gx_calculatezipcrc().

int gx_calculatezipcrc	(	unsigned int *	crc,
		const void *	buffer,
		int	buflen
	)			[inline]

Calculates CRC-32 value from the specified buffer.

Parameters:

	crc	The initial CRC-32 value (gx_getinitialzipcrc()), the function will be updated it.
	buffer	Pointer to data.
	buflen	Length of the data in bytes.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_calculatezipcrcd().

int gx_getinitialzipcrc	(	gxHANDLE	handle,
		unsigned int *	crc
	)			[inline]

Returns the initial CRC.

Parameters:

	handle	Handle of an opened ZLIB module.
	crc	Pointer to an area, the function will be updated it.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::GetInitialCRC(), and gx_getinitialzipcrcd().

int gx_getinitialzipcrcd

(

unsigned int *

crc

)

[inline]

Returns the initial CRC.

Parameters:

crc

Pointer to an area, the function will be updated it.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_direct(), and gx_getinitialzipcrc().

Referenced by gx_getinitialzipcrc().

int gx_getinitialzipcrc

(

unsigned int *

crc

)

[inline]

Returns the initial CRC.

Parameters:

crc

Pointer to an area, the function will be updated it.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_getinitialzipcrcd().

int gx_readlexfieldzip	(	gxHANDLE	handle,
		void *	buffer,
		int *	buflen
	)			[inline]

Reads the local extra field of the marked file in the archive.

Parameters:

	handle	Handle of an opened ZLIB module.
	buffer	Pointer to data.
	buflen	Length of the data in bytes.

Returns:

On error false is returned and the error code/string in the GX system is set appropriately ( see gx_geterror() ).

References gx_call().

Referenced by gxZip::ReadLocalExtraField().