Re: Memory card reader insertion/removal notification

Tech-Archive recommends: Fix windows errors by optimizing your registry

Let's look. Card insert is a media insert, not device insert (unlike USB
flash drive).
CdRom.sys driver has some ways of signalling the OS about the media insert.
Maybe the card reader's driver does this too - some WM_DEVICECHANGE code is
IIRC about the media insert.
But, if the card reader's driver has no such thing (it should call the
routine named something like IoNotifyVolumeEvent) - then polling is the only
way.

--
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
maxim@xxxxxxxxxxxxxxxx
http://www.storagecraft.com

"Eduardo Francos" <efrancos@xxxxxxxxxx> wrote in message
news:42cceeea$0$3140$8fcfb975@xxxxxxxxxxxxxxxxxx
> Maxim S. Shatskih wrote:
> > Polling once per second or 0.5 seconds is fine.
> >
>
> Right, it works. I could even go up to three to five seconds without
> loosing functionality but I'd really prefer a notification system


.

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