is the usb inserted and the driver loaded, delphi programming
Posted on 2011-03-08
a USB device is inserted into usb port on WinXP computer. in reponse the operating system loads the necessary drivers.
My program is communicating to this usb device using the loaded driver. My problem is to determine if the device has been inserted into the USB and/or if the driver is loaded by the operating system.
If I just go ahead and access the driver before it is initialized I get an access violation. also I need to find a mechanism to detect if the user has removed the device again.