Re: QXXRTVDA - Monitoring for missing data area?

On 2011/6/16 6:15 PM, James Lampert wrote:

My C is a bit rusty at the moment.

Is there a way, when calling QXXRTVDA, to avoid having it crash your
program if the data area it's looking for isn't there?

The QWCRDTAA API has an error code parameter, and might be easier to use in the long run.

For QXXRTVDA, you could use a direct monitor handler.

#include <except.h>
...

#pragma exception_handler(errLab, 0, 0, _C2_MH_ESCAPE)
{
ok = 0;
QXXRTVDA (parms);
ok = 1;
}
errLab:
#pragma disable_handler

if (ok)
{
process the data area value
}