[fpc-pascal] Get value of PPChar ?
fredvs
fiens at hotmail.com
Sun Apr 16 16:58:17 CEST 2017
Hello.
A C method is defined like this:
MPG123_EXPORT int mpg123_icy(mpg123_handle *mh, char **icy_meta);
and translated in Pascal with this:
function mpg123_icy(mh: Tmpg123_handle; var icy_meta: PPChar): integer;
cdecl;
OK, the function seems to work because the result = 0 (no error).
But how to retrieve the data icy_meta (PPChar) ?
var
theicytag : PPChar;
resu : integer;
...
resu := mpg123_icy(ahandle, theicytag);
if resu = 0 then writeln(theicytag^); --> raise exception + crash
resu := mpg123_icy(ahandle, theicytag);
if resu = 0 then writeln(theicytag^^); --> also raise exception + crash
Fre;D
-----
Many thanks ;-)
--
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