[Lazarus] VirtualTreeView, Absoluteindex example on freepascal.org

[wkitty42 at windstream.net]

On Thursday, September 12, 2013 11:36 AM, Jürgen Hestermann <juergen.hestermann at gmx.de> wrote: 
>I didn't look at the code, but usually          index = -1 means that the item was not found. So maybe          AbsoluteIndex's result should actually be signed? 
              
>     And how would it ever reach the value -1? 

it starts off there? i regularly set the result value to -1 before running thru a routine... if there is success, the result value is set to a good value otherwise it retains its -1 value...

>     Obviously there is no code that sets it to this value, 
>     otherwise it would not compile with Cardinal type.

that is something else altogether ;)

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