Re: Garmin USB Addendum

From: Avia DBM (avia_dbm_at_abnormal.com)
Date: 06/20/04 

Date: Sun, 20 Jun 2004 18:59:55 +0000 (UTC)

Heinrich Pfeifer (n-spam@gartrip.de) wrote:
:
: "Avia DBM" <avia_dbm@abnormal.com> wrote in
: news:cb3eq4$15km$1@knotty.abnormal.com...
: > Thanks for your response. I cannot find HidD_GetHidGuid anywhere in
: my MSVC++V5, but I did find Jan Axelson's book.
:
: > The Garmin doc contains everything I need to know except how to get
: a HANDLE for use with ReadFile and WriteFile. Is this a big problem ?
:
: HidD_GetHidGuid and all other functions used by Jan Axelson are
: already in the setupapi.dll present on each Windows system. Jan
: Axelson shows how to define and how to use them.
:
: To find the handle for ReadFile, you must go through all the functions
: SetupDiGetClassDevs, SetupDiEnumDeviceInterfaces,
: SetupDiGetDeviceInterfaceDetail, CreateFile,
: SetupDiDestroyDeviceInfoList - not a quick job, but it works fine when
: done.
:
: --
:
: Heinrich
: http://www.gartrip.de
: mail: new<at>gartrip.de
:
Many thanks, Heinrich, I'll work on it now I know where I'm going.
Doc.
 

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