IsOpen() does not tell the actual status

[Anonymous]

In my C++ project i use Cyusb.lib
After I manually disconnect the Device,isOpen allways return true.So is there any function will tell me the actual status of the device?

       

i get the device status with win32 api createfile in your old version.and how can i cope with CCyUSBDevice?

[Anonymous]

Can you please create a technical support case with you application code for us to review ? You have mentioned that you are using an older version, can you check and report your observation with recent libraries available on our web.