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harbour-core/harbour/doc/harbext.txt
2000-03-23 01:41:28 +00:00

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/*
* $Id$
*/
/* $DOC$
* $FUNCNAME$
* Harbour Extensions
* $CATEGORY$
* Document
* $ONELINER$
* Harbour Extensions
* $DESCRIPTION$
*<b>Language extensions:</b> </par>
*--------------------
*
** Class generation and management. </par>
*
* Clipper only allowed creation of objects from a few standard
* classes. </par>
* In Harbour, you can create your own classes--complete with
* Methods, Instance Variables, Class Variables and Inheritance.
* Entire applications can be designed and coded in Object Oriented
* style. </par>
*
** @<FunctionName>() </par>
* Returns the pointer (address) to a function. </par>
*
* The returned value is not useful to application-level programming, but
* is used at a low level to implement object oriented coding.
* (Internally, a class method is a static function and there is no
* symbol for it, so it is accessed via its address). </par>
*
** Class TGetList </par>
* Object oriented support for GetLists management. </par>
*
** ProcName() support for class Method names. </par>
* Class Methods can be retrieved from the call stack. </par>
*
** Memory() has new return values. </par>
* See hbmemory.ch </par>
*
** Transform() --> new function in format string </par>
* @0 Make a zero padded string out of the number. </par>
*
** SToD() --> dDate </par>
* New function that converts a yyyymmdd string to a Date value. </par>
*
** Optional Compile Time STRONG TYPE declaration (and compile time TYPE
* MISMATCH warnings) </par> </par>
*
* Example: LOCAL/STATIC Var AS ... </par>
*
** The Harbour debugger provides new interesting classes: </par>
* - Class TDbWindow could be the foundation for a generic multiplatform </par>
* - Class TForm </par>
* - Class TDbMenu implement both pulldown and popup menus. </par>
*
*
*
*<b>RTL enhanced functionality:</b> </par>
*--------------------------- </par>
*
*- Directory( <cMask>, <cFlags>, <lEightDotThree> ) </par>
* The 3rd parameter is a Harbour (optional) parameter and indicates that on
* those platforms that support long filenames, that you wish to receive what
* would be considered the dos equivalant 8.3 name.
* Could affect Adir() and Dir if they were modified to take advantage
* of it - currently, they will return long names if the os supports it. </par>
*
*- DiskSpace( <nDrive>, <nType> ) </par>
* The second parameter is a Harbour (optional) parameter and indicates the
* type of diskinfo being requested. See en/diskspac.txt for info. </par>
*
* $END$
*/