ABS function i RAP

rbuser

Hi!

It seems that ABS function is not supported directly. How to avoid that
except writing code like:
if aValue<0 then
aValue:=aValue*-1

Am I missing something?
Benjamin

The difference between theory and practice is that in theory there is no
difference between theory and practice, but in practice there is....

nardmoseley

You can easily extend RAP to include the ABS function by writing a
pass-through function and registering it with RAP. See the following
article.

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Article: Extending RAP
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There are two very simple and powerful techniques to extend the capabilities
of RAP infinitely. These are summarized below and covered in more detail in
the RAP.hlp online help. Demos and tutorials are installed to
RBuilder\Demos\RAP. The tutorial text is located in RAP.hlp.


1. RAP Pass-Through Functions

These are functions that appear in the Language tab of RAP's Code Toolbox.
These functions are written in Delphi and can be called from RAP. RAP's
pass-through function architecture enable's developers to add new built-in
functions to RAP's code toolbox.

2. Extend RAP's RTTI

RAP's Run-time Type information defines what classes and properties can be
accessed via RAP. By default the published properties of any class that is
registered with Delphi's RegisterClass procedure is recognized by RAP. In
addition many of the public properties and methods of ReportBuilder classes
are exposed.







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Nard Moseley
Digital Metaphors
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