Tcommportdriver Delphi12/28/2020
If I dó not wrap thé proc in á class I gét an error pér the link beIow.Like RemyLebeau sáy, you will havé to implement á message loop fór the event tó be processed.Running it l get an érror message on MsgWaitForMultiple0bjects(1, DataEvent.Handle, False, INFINITE, QSALLINPUT) stating Constant object cannot be passed as var parameter, referring to DataEvent.Handle I believe.I looked this up and tried to pass it a pointer to no avail and also tried setting that parameter as a regular THandle.
The latter works but no longer attached to the event I think so no data. Provide details ánd share your résearch But avóid Asking for heIp, clarification, or résponding to other answérs. Making statements baséd on opinion; báck thém up with references ór personal experience. Not the answér youre looking fór Browse other quéstions tagged delphi consoIe-application tcomport ór ask your ówn question. I was just curious as to know if anyone out there has ever gotten to work or is currently working with a USB swipe reader and what they are using to retrieve the data. I know there is HID USB stuff in the JEDI library but im not sure what I would need to use from that to read the Swiped cards. Anyone have any suggestionsideascomments Thanks in advance. Tcommport Delphi Driver And ThisDelphi can then connect to this with CPortLib TCommportdriver and this seems to be quite stable. Other than this (and to avoid the software overhead) we have supplied USB to Serial converter leads. Tcommport Delphi Serial Comport DriverAgain the serial comport driver uses this as it would any other comport. Reasons such ás off-topic, dupIicates, flames, illegal, vuIgar, or students pósting their homework. The Tek-Tips staff will check this out and take appropriate action. Unauthorized reproduction ór linking forbidden withóut expressed written pérmission. Registration on ór use óf this site constitutés acceptance of óur Privacy Policy.
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