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Article #9649Re: How to determine that CD-drive is empty?
From: Simon Macneall
Date: Sun, 27 Jun 2004 23:36
Date: Sun, 27 Jun 2004 23:36
37 lines
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2590 bytes
On Fri, 25 Jun 2004 01:05:25 -0700, Bob Gonder <notbg@notmindspring.invalid> wrote: > > Is IDiscRecorder of any help? > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/devio/base/idiscrecorder.asp > See also > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/devio/base/rsm_media_change_detection.asp?frame=true > Hmm.. both XP solutions..... > > > Also see > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/devio/base/detecting_media_insertion_or_removal.asp?frame=true > Talks about WM_DEVICECHANGE > And > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/devio/base/device_management_control_codes.asp?frame=true > > Thanks for the links... WM_DEVICECHANGE will only tell you if a disc is inserted, not the tray close with no disc. Also to use it you have to assume a state at application launch (ie, assume that there is no disc in the drive until you get told otherwise). I tried the device management control a week or so ago, using IOCTL_CHANGER_GET_STATUS I could also only tell if there was a disc in the drive or not, not the actualy tray state. I'll have a play with the IDiscRecorder amd Removable Storage Manager stuff, but it isn't overly likely that the drive we will be trying to open/close is a recorder, and while our main deployment will be XP, we have to work on 2k as well... Thanks Simon
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X-Google-Thread: 10cc67,d00920f15dfe8a59 X-Google-Attributes: gid10cc67,public X-Google-Language: ENGLISH,ASCII-7-bit Newsgroups: borland.public.cppbuilder.nativeapi Subject: Re: How to determine that CD-drive is empty? References: <40da83a0$1@newsgroups.borland.com> <40dab6f4$1@newsgroups.borland.com> <40dabd59$1@newsgroups.borland.com> <opr94ibay12nqexn@lightyear> <opr94juib12nqexn@lightyear> <40dbc351$1@newsgroups.borland.com> <opr940rkqc2nqexn@lightyear> <74mnd0t561o702vk69e3mugo3jjndn3n85@4ax.com> Message-ID: <opr9907xlv2nqexn@lightyear> Date: Mon, 28 Jun 2004 07:36:59 +0800 From: "Simon Macneall" <macneall@iinet-dot-net-dot-au> Content-Type: text/plain; format=flowed; delsp=yes; charset=iso-8859-15 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit User-Agent: Opera M2/7.51 (Win32, build 3798) NNTP-Posting-Host: 203.153.243.50 X-Trace: newsgroups.borland.com 1088379287 203.153.243.50 (27 Jun 2004 16:34:47 -0700) Lines: 37 Path: arc1-ca.pugleaf.net!g2news1.google.com!news2.google.com!proxad.net!proxad.net!npeer.de.kpn-eurorings.net!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mail