Upgrading from Indy9 to Indy10

Translating the source code to Indy10 only took about an hour. It would be nice if there were a more comprehensive upgrade guide, rather than having to google one piece after another to figure things out, and pulling up grep to search the source code to figure out what include is needed now.

Here’s a summary of a few of the changes I encountered needing (hope this helps someone save some time!)

• POP3.MaxLineLength becomes Pop.IOHandler.MaxLineLength (watch out for IOHandler being null though)
• wsOK moved, add uses IdIMap4
• Pop3.Connect(Timeout) breaks into two commands, Pop3.ConnectTimeout := TimeOut; Pop3.Connect()
• StoredPathName not found. Change TIdAttachment to TIdAttachmentFile
• POP.Capture(Dest); moved to POP.IOHandler.Capture(Dest);
• Signatures of OnWork and OnProcessWork changed. Change const Integer param to Int64 (not const)
• EIDSocketError not found. Import/uses IdStack
• CommaSeperatedToStringList not found. Add import/uses IdGlobalProtocols
• TIdText not found. Add import IdText

But when all was said and done, that didn’t fix my disconnect problem. Looking a little more into why it was crashing disconnecting, I changed closing the connection from being conditional on the correct response to unconditional, and instantly, things start working and I have email showing up in my client! Yay.