https://bugs.winehq.org/show_bug.cgi?id=28141
--- Comment #6 from Vincent Povirk madewokherd@gmail.com --- Can someone check whether the delphitwain example program works on Windows? I don't see how it could, based on the source code.
The library passes an application window to MSG_ENABLEDS, which doesn't pass messages via MSG_PROCESSEVENT. Given that, I don't see how it can get the MSG_XFERREADY notification.