ava.io.IOException:at com.codeminders.hidapi.HIDManager.listDevices(Native Method) about javahidapi HOT 5 OPEN

Hi I'm a bit lost :-)

One question:

javahidapi 32 bits dll does work with XP (32bits) installed in 64 hardware 
computer? No I suppose because seems to be why I've got an error calling 
listDevices method.

I installed VS 2008 in OS WinXP in 64 hardware computer: 
I didn't found x64 option for 64 bits compilation of javahidapi. Someone could 
tell me how to do it? Windows OS too ahve to be 64bits?

Thx!!!

To compile project in x64 using  VS 2008 you need install  x64 compiler. By 
default this compiler does not installed. You need to use VS installation  in 
order to do this

[deleted comment]

Hi,

thank you very much. I installed x64 compiler and I compiled it with success.

I tried lib and works with Windows XP with x64 arch computer.
It fails with Windows 7 (Home Premium) BUT does work with Windows 7 in virtual 
machine installes on Linux x64 (Fedora 17).

With Windows 7 Premium 64 bits I've got same error as below:

java.io.IOException:
        at com.codeminders.hidapi.HIDManager.listDevices(Native Method)
        at cbgp.hdi.AdministradorHDI.getInstance(AdministradorHDI.java:67)
        at cbgp.CodigoBarrasGP.main(CodigoBarrasGP.java:92)

Any idea?

Hi,

I've got it but it's an horrible task to complete... I suggest you should fix 
it.

If you same error is "so simple" to fix it... :s

1) create env var "devmgr_show_nonpresent_devices" put it value "1"
2) open Device Manager
3) Menu click on View then show hidden devices
4) uninstall all the faded entries (Generic USB Hub, USB devices, etc.) and 
close window
5) Search file INFCACHE.1 (commonly in C:\window\system32 or 
C:\Windows\System32\Driver Store) and DELETE IT. It will force Windows to 
regenerate a new one with actualized cache


Barbarian way to find a work around. 3 days without sleeping.

Hope it could help!!!