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IOCTL_DISK_DEVICE_INFO (Compact 2013)

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3/26/2014

This I/O control message returns storage information to block device drivers. Send this message with DeviceIoControl.

Syntax

BOOL DeviceIoControl(
    HANDLE hDevice,           // handle to device
    DWORD dwIoControlCode,    // use IOCTL_DISK_DEVICE_INFO
    LPVOID lpInBuffer,        // pointer to input buffer
    DWORD nInBufferSize,      // input buffer size
    LPVOID lpOutBuffer,       // pointer to output buffer
    DWORD nOutBufferSize,     // output buffer size
    LPDWORD lpBytesReturned,  // number of bytes returned
    OVERLAPPED lpOverlapped   // pointer to OVERLAPPED structure
);

Parameters

  • hDevice
    [in] Handle to the device.
  • dwIoControlCode
    [in] Control code for the operation. Use IOCTL_DISK_DEVICE_INFO for this operation.
  • nInBufferSize
    [in] Specifies the size of the STORAGEDEVICEINFO structure in lpInBuffer.
  • lpOutBuffer
    Not used. Set to NULL.
  • nOutBufferSize
    Not used. Set to zero.
  • lpBytesReturned
    Pointer to a DWORD to receive total bytes returned.
  • lpOverlapped
    Not used.

Return Values

Returns TRUE if successful; otherwise, returns FALSE.

Remarks

To get extended error information, call GetLastError. GetLastError may return other standard error messages as appropriate.

Requirements

Header

diskio.h

See Also

Reference

Block Driver IOCTLs
DeviceIoControl

Other Resources

STORAGEDEVICEINFO