Skip to main content.



PX_new3 -- create new instance of Paradox file


#include <paradox.h>

pxdoc_t* PX_new3(void (*errorhandler)(pxdoc_t *p, int type, const char *msg, void *para), void* (*allocproc)(pxdoc_t *p, size_t size, const char *caller), void* (*reallocproc)(pxdoc_t *p, void *mem, size_t size, const char *caller), void (*freeproc)(pxdoc_t *p, void *mem), void *errorhandler_user_data)


Creates a new instance of a Paradox file. This function, PX_new(3) or PX_new2(3) must be called before any other functions. If the caller has its own error and memory management functions they can be passed.

In opposition to PX_new2(3) this function has an extra parameter errorhandler_user_data which is a pointer to user data which is passed to the error handler function as the fourth parameter. This could be used to pass e.g. a widget pointer where error message are to be output, or a context which otherwise had to passed to the error handler through a global variable.


Returns a pointer to an internal representation of a Paradox file or NULL on failure.


This manual page was written by Uwe Steinmann .

Latest News

Released version 0.6.6

April 07, 2016

This release fixes some more typos in the documentation.

Released version 0.6.5

Jannuary 11, 2012

pxlib isn't dead, its development has just slowed down. This release fixes some typos and optimizes the configuration process.

Released version 0.6.2

September 19, 2007

This one fixes a long lasting bug on 64 bit architectures. It also is compilable in a mingw environment and Visual C++ with the help of cmake.

Released version 0.6.1

March 29, 2006

There were some bugs related to the changes of the last release. This version fixes them. Besides that the following has changed:

  • Much better support for secondary indexes
  • PX_insert_record() and PX_update_record() treat null values propperly
  • PX_delete_record() now updates the internal index without corrupting it.
  • Various man page updates.
  • Auto increment fields of type pxfAutoInc.
  • Fixed some compile errors and warnings.
  • Fixed various small bugs and memory leaks.

Released version 0.6.0

February 6, 2006

This version includes some major changes to the api while retaining compatible to older versions. If you use the new functions expect bugs but also a much simplier record handling.

  • Databases can be read and written after opening with PX_open_xxx()
  • Use a cache for reading encrypted blobs
  • Added new functions PX_delete_record(), PX_update_record(), PX_insert_record(), PX_retrieve_record()
  • reading and writing encrypted blob files is more efficient.
  • No more than 64 blobs will be stored in blocks of type 3
  • Fixed various small bugs and memory leaks.

Released version 0.5.1

August 11, 2005

  • fixed bug when reading header of blob (Thanks to Giovanni Giacobbi)
  • fixes bug when reading blobs of a certain size from an encrypted .mb file.
  • reading and writing encrypted blob files is more efficient.

Released version 0.5.0

July 14, 2005

  • support for encrypted databases and blob files

New web site

02 Feb 05

After a long time the web site has been overhauled with much more information about pxlib.