IOCTL_HID_POLL

Request the HID class driver to poll a device for status.

Parameters

hDevice

Handle to the HID class device.

dwIoControlCode

IOCTL_HID_POLL

lpInBuffer

NULL

nInBufferSize

Not used

lpOutBuffer

NULL

nOutBufferSize

Not used.

lpBytesReturned

Not used.

lpOverlapped

NULL

Remarks

This I/O control code is not strictly necessary for the Windows CE HID class driver, because USB device status is collected automatically by the USB host controller driver (HCD). This I/O control code is defined in Windows CE only for compatibility with Windows NT. Processing for this code can simply return success without doing any work.