--- Mike Montalvo wrote:
> The following code compiled fine using the 3.1 SDK.
>
> Handle hErrorStringsRsrc;
> ...
> hErrorStringsRsrc = (char**)DmGetResource('tSTL',
> ErrorCodesStringList); // get the resource
> ...
> What the heck is an _opaque*?
Basically, it means "you're not supposed to look at
it". It's not transparent. No peeking!
Your previous code was relying on the fact that a
Handle was just a pointer to a pointer. You cast the
Handle returned by DmGetResource with (char **), but
then assign it to a Handle. Kind of sloppy looking.
Normally, you would do something like:
Char ** cPP;
cPP = (Char **)SomethingYouCanCastToCharStarStar();
But, you shouldn't be casting MemHandles to anything
because they are "opaque". Most often, what you do
with a MemHandle is lock it to get a pointer and cast
that pointer to a type that you can use.
> ...
> I get "Illegal type" error on the last line
> (the StrLen). It highlights the last "]".
Right. Your code isn't going to work now, even though
it might have worked before.
Why not just use SysStringByIndex()? For example:
UInt16 len;
Char strP(kMAXLEN);
// get the length of the string at a particular
index
SysStringByIndex( ErrorCodesStringList, x, strP,
kMAXLEN );
len = StrLen(strP);
SysStringByIndex() has been there since the Palm OS
2.0 New Feature Set.
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