Keyboard Filter and kbfiltr
in [Win32 Kernel]
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From: soviet_bloke on 23 Sep 2006 14:57 Maxim, > No you cannot. In fact, you can, but it does not necessarily mean that you should..... Anton Bassov Maxim S. Shatskih wrote: > > but I was thinking that I could easily attach it to the keyboard class > > driver by doing something like: > > > > CCHAR ntNameBuffer[64] = "\\Device\\KeyboardClass0"; > > STRING ntNameString; > > UNICODE_STRING uKeyboardDeviceName; > > RtlInitAnsiString( &ntNameString, ntNameBuffer ); > > RtlAnsiStringToUnicodeString( &uKeyboardDeviceName, &ntNameString, > >TRUE > > ); > > IoAttachDevice(pKeyboardDeviceObject,&uKeyboardDeviceName,&devExt- > >pKeyboardDevice); > > No you cannot. Use PnP instead and UpperFilters registration, forget > IoAttachDevice for PnP stacks. > > -- > Maxim Shatskih, Windows DDK MVP > StorageCraft Corporation > maxim(a)storagecraft.com > http://www.storagecraft.com
From: Jon on 23 Sep 2006 18:02 Hey Maxim, > No you cannot. Use PnP instead and UpperFilters registration, forget > IoAttachDevice for PnP stacks. Would you be able to provide an example of what an UpperFilters registration would look like for PnP? I have two books that I am currently reading; Device Driver Development by Peter V. and Windows driver model by Walter Oney. I couldn't find an example inside either one of these books. Would there be one inside the WDK? Thanks
From: Maxim S. Shatskih on 23 Sep 2006 20:28 > > No you cannot. > > In fact, you can, but it does not necessarily mean that you should..... Yes, you can use the hammer for screws and the screwdriver for nails, but for what? -- Maxim Shatskih, Windows DDK MVP StorageCraft Corporation maxim(a)storagecraft.com http://www.storagecraft.com
From: Maxim S. Shatskih on 23 Sep 2006 20:30 > Would you be able to provide an example of what an UpperFilters > registration would look like for PnP? Scan your SYSTEM registry for "kbdclass". Note - the UpperFilters field is MULTI_SZ. The driver SC database key names are listed there, and the order of them is - the former in the UpperFilters list is the upper in the devnode. -- Maxim Shatskih, Windows DDK MVP StorageCraft Corporation maxim(a)storagecraft.com http://www.storagecraft.com
From: anton bassov on 23 Sep 2006 21:51 Maxim, > > In fact, you can, but it does not necessarily mean that you should..... > > Yes, you can use the hammer for screws and the screwdriver for nails, but for > what? The problem is that, when you say "you cannot do it" and the OP knows that he *CAN*, it automatically invalidates your advice in his eyes - after all, you don't explain things to him simply by saying NO, do you??? However, when you tell him "actually, you can, but doing things this way is just unreasonable - it is like using hammer for screws", it gives him a second thought...... Anton Bassov Maxim S. Shatskih wrote: > > > No you cannot. > > > > In fact, you can, but it does not necessarily mean that you should..... > > Yes, you can use the hammer for screws and the screwdriver for nails, but for > what? > > -- > Maxim Shatskih, Windows DDK MVP > StorageCraft Corporation > maxim(a)storagecraft.com > http://www.storagecraft.com
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