> I get these errors without editing any values. Here is the load data
> callback.
>
> Err pcMainTable::LoadData( Word row, Word column, Boolean editable,
> VoidHand *data, WordPtr dataOffset,
> WordPtr dataSize, FieldPtr fld )
This callback doesn't match the parameter list for the code called by the
system... it wants a function that matches
Err TableLoadDataFuncType (
void *tableP, Int16 row, Int16 column,
Boolean editable, MemHandle *dataH, Int16 *dataOffset,
Int16 *dataSize, FieldPtr fld)
Your callback function has a different signature, leading with a hidden
"this" parameter, then all the parameters that are expected. In your first
line, you're calling a method, which could be written as
TablePtr table = this->GetHandle();
but your "this" value is actually already the handle to the table, so you're
doing really odd stuff.
Callbacks to C++ member functions really need static members so you don't
have the implicit "this" pointer messing up the function signature. I
looked at doing something like this, but in order to do it right, you need
an extra data structure that would map table handles to your table wrapper
object.
--ben
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