Re: IOCTL_MOUSE_QUERY_ATTRIBUTES usage?

From: Doron Holan [MS] (doronh_at_nospam.microsoft.com)
Date: 09/10/04 

Date: Thu, 9 Sep 2004 21:49:28 -0700

there is no ioctl value to change the settings. like maxim said, you can't
open it from user mode anyways

d 

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"Nuno Sousa" <nunofgs@gmail.com> wrote in message 
news:chr4rc$7c1@odbk17.prod.google.com...
> Thanks for the replies.
>
> My driver should be \\Device\lmouse. I tried that but bResult came
> False... it works with \\.\lmouse, but maybe that's not it.
>
> Regarding the WIN32 API, it might not do what I want. I intend to send
> actual control codes to the mouse driver to change certain settings.
> Doubt there's a API that does that... would make my life easier tho :)
>
> --
> Nuno Sousa
>
>
> Doron Holan [MS] wrote:
>> aer you sure bResult is true and that you actually created the handle
>
>> properly?  if \\.\lmouse is your driver,the driver needs to handle
> this
>> IOCTL separate in its control device object and not rely on the
> filter
>> device object.
>>
>> d
>>
>> --
>> Please do not send e-mail directly to this alias. this alias is for
>> newsgroup purposes only.
>> This posting is provided "AS IS" with no warranties, and confers no
> rights.
>>
>>
>> "Nuno Sousa" <nunofgs@gmail.com> wrote in message
>> news:chqjmj$qcc@odak26.prod.google.com...
>> > I'm very new to driver development, but I was trying to grab the
>> > information from my mouse. I wrote this in like 5 mins but I'm
> getting
>> > output like:
>> >
>> > MouseIdentifier = 52428
>> > NumberOfButtons = 52428
>> > SampleRate = 52428
>> > InputDataQueueLength = -858993460
>> >
>> >>From what I was reading at
>> >
> http://msdn.microsoft.com/library/default.asp?url=/library/en-us/intinput/hh/intinput/mref_078cb198-31ca-4b11-bc5b-33553bcb71a0.xml.asp
>> > I'm kind of working in the dark here, so was hoping someone could
> shed
>> > some light on this.
>> >
>> >
>> > Here's the code:
>> > ----------------------------
>> > #include <windows.h>
>> > #include <winioctl.h>
>> > #include <stdio.h>
>> > #include <ntddmou.h>
>> >
>> >
>> > int main() {
>> > HANDLE hDevice;
>> > BOOL bResult;
>> > DWORD junk;
>> > MOUSE_ATTRIBUTES ma;
>> >
>> > hDevice = CreateFile("\\\\.\\\\lmouse",
>> > GENERIC_READ,
>> > 0,
>> > NULL,
>> > OPEN_EXISTING,
>> > 0,
>> > NULL);
>> >
>> > if (hDevice == INVALID_HANDLE_VALUE)
>> > {
>> > return (FALSE);
>> > }
>> >
>> > bResult = DeviceIoControl(hDevice,
>> > IOCTL_MOUSE_QUERY_ATTRIBUTES,
>> > NULL, 0, // no input buffer
>> > &ma, sizeof(ma),     // output buffer
>> > &junk,                 // # bytes returned
>> > (LPOVERLAPPED) NULL);
>> >
>> >
>> >
>> > printf("MouseIdentifier = %u\n", ma.MouseIdentifier);
>> > printf("NumberOfButtons = %u\n", ma.NumberOfButtons);
>> > printf("SampleRate = %u\n", ma.SampleRate);
>> > printf("InputDataQueueLength = %ld\n", (ULONG)
>> > ma.InputDataQueueLength);
>> >
>> >  CloseHandle(hDevice);
>> >
>> > }
>> >
>