IOCTL_DISK_GET_DRIVE_LAYOUT_EX IOCTL (winioctl.h)
Retrieves extended information for each entry in the partition tables for a disk.
To perform this operation, call the DeviceIoControl function with the following parameters. You must have read access to the drive in order to use this control code.
BOOL DeviceIoControl( (HANDLE) hDevice, // handle to device IOCTL_DISK_GET_DRIVE_LAYOUT_EX, // dwIoControlCode NULL, // lpInBuffer 0, // nInBufferSize (LPVOID) lpOutBuffer, // output buffer (DWORD) nOutBufferSize, // size of output buffer (LPDWORD) lpBytesReturned, // number of bytes returned (LPOVERLAPPED) lpOverlapped // OVERLAPPED structure );
This operation retrieves information for each primary partition as well as each logical drive. To determine whether the entry is an extended or unused partition, check the Disk Partition Types.
|Minimum supported client||Windows XP [desktop apps only]|
|Minimum supported server||Windows Server 2003 [desktop apps only]|
|Header||winioctl.h (include Windows.h)|