I'd write the option as part of the compilied code, not handled by the
precompilier. You can include TblSetSelection in the same code that is
executed on Palm OS5 and OS2 just as long as you don't make the call on OS2.
// place this in your app startup code
CurrentOSVersion = GetTheOSVersion(...)
// Later...
if(CurrentOSVersion >= 4)
TblSetSelection (...)
else
// my funky set selection code
----- Original Message -----
From: "LionScribe" <[EMAIL PROTECTED]>
Newsgroups: palm-dev-forum
To: "Palm Developer Forum" <[EMAIL PROTECTED]>
Sent: Thursday, April 29, 2004 8:47 PM
Subject: Making sure your programs works with older OS
> Is there any way, at compile time, to verify that you are using
implemented
> functions for your desired OS. For example, can I make sure that
> TblSetSelection is not used if I am trying to be compatible with OS 3.5,
and
> that compile fails if it's used.
> I understand, that you can try using older include files, but that
> complicates things.
> If there is no way, I would suggest using a simple define header,
something
> like this;
>
> #define MIN_COMPATIBLE_OS 3.5
> #if (MIN_COMPATIBLE_OS < 4)
> #define TblSetSelection TblSetSelectionNeedsOS4
> #endif
>
> Any other suggestions?
> LionScribe
>
>
>
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