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Rob · Guest

Hello All,

I have a SDK I am using via a type library.

It seems to throw either EOleException or EOleSysError exception types.

I get the error code by doing something like this:

try
//Do someting
except
on E:EOleException do
begin
ErrNo := HResultToErrorNumber( E.ErrorCode);
//I have to do get the error description for over 100 codes
case ErrNo of
5001:
begin
ShowMessage( 'A stupid error message');
end
....
end;
end;
end;

The SDK documentation give a Error Code and corresponding Error Message
for every exception it generates. It also states this:

/*All methods and properties of objects in Scanning Services return an
HRESULT (as all COM objects do). An OLE/COM HRESULT is a bit-packed
structure whose members may be de-referenced using macros provided by
OLE. COM objects in Scanning Services also support the IErrorInfo
interface. This interface exposes methods such as GetDescription,
allowing clients to extract error details from OLE/COM servers.*/

Finally, my question is how to get the error description without having
to do what I have shown in my code sample because there are many
exceptions that my be raised via the SDK?

Thanks,

Rob

Rob · Guest

Is this the right group in which to post this question?