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Home » Topics » WinFax Support Forums » WinFax SDK/DDE Software Development » How to detect “line busy” failures?
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If a fax attempt fails due to “line busy”, “no answer”, etc., how can my VB-6 program detect this? In each case, the Send() method returns a 0 and so does the GetLastError method. However, the fax attempt appears in the Send Log as having failed. What am I missing?
There is an undocumented error code listing in the downloads section. You might want to check that out
How does .Send’s eventID correlate with .GetMessageErrorCode’s messageID?
it is part of the SDKLog function, once the event has failed in the log you can get this info from that specific event
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