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IOCTL_CHANGER_GET_STATUS IOCTL (winioctl.h)

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Retrieves the current status of the specified device.

To perform this operation, call the DeviceIoControl function with the following parameters.

BOOL DeviceIoControl(
  (HANDLE) hDevice,             // handle to device
  IOCTL_CHANGER_GET_STATUS,     // dwIoControlCode
  NULL,                         // lpInBuffer
  0,                            // nInBufferSize
  NULL,                         // lpOutBuffer
  0,                            // nOutBufferSize
  (LPDWORD) lpBytesReturned,    // number of bytes returned
  (LPOVERLAPPED) lpOverlapped   // OVERLAPPED structure
);

Requirements

Requirement Value
Minimum supported client Windows XP
Minimum supported server Windows Server 2003
Header winioctl.h (include Windows.h)

See also