At 4:46 PM -0600 2000/02/16, Robert Graber wrote:
>Well, if you try that code you should get a fatal exception, just like I
>did. I am thinking that the problem is in the call to FldGetAttributes.
>The OS call expects to send back a pointer to the Attributes in the second
>parameter, not accept an address.
No, the function copies the field's attributes into the memory area pointed to by the
attrP you pass to the routine. It does not return a pointer to the attributes.
FldGetAttributes is little more than:
void FldGetAttributes (const FieldType * fldP, FieldAttrPtr attrP)
{
*attrP = fldP->attr;
}
The fatal exception is (probably) the result of passing an invalid fldP to the
routine. Hook up a debugger, run this on a Debug ROM, and the problem(s) should become
obvious. A good C pointer refresher might help too... var parameters are a bit
trickier if you're used to Pascal-style parameter syntax (pass by value vs. pass by
reference).
Regards,
Jim Schram
3Com/Palm Computing
Partner Engineering
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