J
Jordi Pocurull
I've a child and I want to prevent he could open the CD. I want to open it
trough the keyboard.
I have XP Profesional
trough the keyboard.
I have XP Profesional
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N
NoNoBadDog!
Since it is a mechanical connection to an electronic switch, it will not be
possible to disable it unless one either does surgery on the unit, or
applies a cover in some manner that would prevent contact with the switch.
Bobby
possible to disable it unless one either does surgery on the unit, or
applies a cover in some manner that would prevent contact with the switch.
Bobby
P
Peter R. Fletcher
But the switch is not, in fact, directly connected to the eject motor,
and it is certainly possible to disable it in software - many CD
burning utilities do this. I don't know the answer to the OP's
question, but I am pretty sure that there is must be a way to do what
he wants, short of hardware modifications.
Please respond to the Newsgroup, so that others may benefit from the exchange.
Peter R. Fletcher
and it is certainly possible to disable it in software - many CD
burning utilities do this. I don't know the answer to the OP's
question, but I am pretty sure that there is must be a way to do what
he wants, short of hardware modifications.
Since it is a mechanical connection to an electronic switch, it will not be
possible to disable it unless one either does surgery on the unit, or
applies a cover in some manner that would prevent contact with the switch.
Bobby
Please respond to the Newsgroup, so that others may benefit from the exchange.
Peter R. Fletcher
N
NoNoBadDog!
The feature you are talking about only works when the drive is "burning". I
know of no application or utility that would allow what the OP was asking
about (prevent opening the drive permanently using the switch).
Bobby
know of no application or utility that would allow what the OP was asking
about (prevent opening the drive permanently using the switch).
Bobby
P
Peter R. Fletcher
I don't either. My point was that your original response, suggesting
that this was _impossible_, short of hardware changes, was not
correct.
Please respond to the Newsgroup, so that others may benefit from the exchange.
Peter R. Fletcher
that this was _impossible_, short of hardware changes, was not
correct.
The feature you are talking about only works when the drive is "burning". I
know of no application or utility that would allow what the OP was asking
about (prevent opening the drive permanently using the switch).
Bobby
Please respond to the Newsgroup, so that others may benefit from the exchange.
Peter R. Fletcher
N
NoNoBadDog!
Depends...My answer was that there is not anything that can prevent the use
of the button on the front of the drive all the time. My point was that it
could not be done with software. If you read my post, I stated that the
"button" closes a circuit that initiates the opening or closing of the
drive. It could be rendered inoperative by disabling the circuit, or by
disabling the "button" physically in some manner, so that it could not be
depressed, thus closing the circuit. My post was not "wrong", despite your
misinterpretation. When the drive is "locked" by an application, it is due
to a subset of the commands that the drive hardware recognizes. The command
to lock the drive tray cannot be set to permanently lock the tray. The OP
was asking if anyone knew a way to only use the "eject" command (right click
on the drive icon) as the only method to open the tray. My answer is
correct in context to the question asked. Your contention that my answer is
wrong is erroneous, as it does not apply to the scenario we are dealing
with.
Bobby
of the button on the front of the drive all the time. My point was that it
could not be done with software. If you read my post, I stated that the
"button" closes a circuit that initiates the opening or closing of the
drive. It could be rendered inoperative by disabling the circuit, or by
disabling the "button" physically in some manner, so that it could not be
depressed, thus closing the circuit. My post was not "wrong", despite your
misinterpretation. When the drive is "locked" by an application, it is due
to a subset of the commands that the drive hardware recognizes. The command
to lock the drive tray cannot be set to permanently lock the tray. The OP
was asking if anyone knew a way to only use the "eject" command (right click
on the drive icon) as the only method to open the tray. My answer is
correct in context to the question asked. Your contention that my answer is
wrong is erroneous, as it does not apply to the scenario we are dealing
with.
Bobby
P
Peter R. Fletcher
But I maintain that it _could_ be done with software! The hooks are
all there in the BIOS and OS. The apparent fact that (as far as you
and I know) noone has written a utility to do it doesn't mean that it
can't be done, nor indeed that it hasn't been done (since I don't
claim anything approaching omniscience, and I assume you don't,
either). When you try to eject a disk, _either_ by pressing the eject
button _or_ by issuing a software command, a sequence of events takes
place which normally includes a request to the BIOS/OS to "give
permission" for the disk to be ejected. The system interrupts which
manage this are not used in DOS, so "permission" is always granted,
but Windows does take them over and use them, and one can get access
to them and modify their behaviour through various Windows APIs, or
even (though I grant that few sane people would try to do it this way)
by writing a special device driver for the CD-ROM.
BTW, there is no question that software - at least, defective software
- can "permanently" lock a drive tray. I have experienced a couple of
instances where defective Windows CD-Burning software has effectively
locked my CD drive - the only cure being to power down the system and
restart in DOS.
Please respond to the Newsgroup, so that others may benefit from the exchange.
Peter R. Fletcher
all there in the BIOS and OS. The apparent fact that (as far as you
and I know) noone has written a utility to do it doesn't mean that it
can't be done, nor indeed that it hasn't been done (since I don't
claim anything approaching omniscience, and I assume you don't,
either). When you try to eject a disk, _either_ by pressing the eject
button _or_ by issuing a software command, a sequence of events takes
place which normally includes a request to the BIOS/OS to "give
permission" for the disk to be ejected. The system interrupts which
manage this are not used in DOS, so "permission" is always granted,
but Windows does take them over and use them, and one can get access
to them and modify their behaviour through various Windows APIs, or
even (though I grant that few sane people would try to do it this way)
by writing a special device driver for the CD-ROM.
BTW, there is no question that software - at least, defective software
- can "permanently" lock a drive tray. I have experienced a couple of
instances where defective Windows CD-Burning software has effectively
locked my CD drive - the only cure being to power down the system and
restart in DOS.
Depends...My answer was that there is not anything that can prevent the use
of the button on the front of the drive all the time. My point was that it
could not be done with software. If you read my post, I stated that the
"button" closes a circuit that initiates the opening or closing of the
drive. It could be rendered inoperative by disabling the circuit, or by
disabling the "button" physically in some manner, so that it could not be
depressed, thus closing the circuit. My post was not "wrong", despite your
misinterpretation. When the drive is "locked" by an application, it is due
to a subset of the commands that the drive hardware recognizes. The command
to lock the drive tray cannot be set to permanently lock the tray. The OP
was asking if anyone knew a way to only use the "eject" command (right click
on the drive icon) as the only method to open the tray. My answer is
correct in context to the question asked. Your contention that my answer is
wrong is erroneous, as it does not apply to the scenario we are dealing
with.
Bobby
Please respond to the Newsgroup, so that others may benefit from the exchange.
Peter R. Fletcher
Sidi http://www.samopal.com/news/274.html
One problem - after Stand-by -> Wake-up it doesn't protect drive any more
One problem - after Stand-by -> Wake-up it doesn't protect drive any more