How to read a raw disk without locking/dismounting the volume, using Win32 API?

This StackOverflow question has an answer that requires the volume to be locked/dismounted, but it seems this is not necessarily required. When I use the hex editor HxD (Tools > Open disk) to open a volume (logical disks) or a physical disk, I can open C: and even the SSD it is in seamlessly. I can keep using the C drive without problems, and HxD updates its content.

Also, when I use MSVC, with fopen("\\\\.\\D:", "rb") and fgetc(), I am able to read the first byte of the raw disk/volume D:. This also happens with MinGW, which I think links to MSVC's library.

So, how can I do this using the Win32 API? Or is MSVC doing sinister things that are not normally done by the Win32 API?

As @RbMm said, CreateFile("\\\\.\\D:", ...) can make it just as fopen("\\\\.\\D:", "rb"). This is nothing related to MinGW and MSVC.

When using the flag FILE_FLAG_NO_BUFFERING, which is implicit for devices, the size and offset of data must be a multiple of the sector size. For example,

#include <windows.h>
#include <stdio.h>

#define SECTOR_SIZE 512

int main()
{
        HANDLE hFile;
        unsigned char buf[SECTOR_SIZE];
        DWORD rd;
        hFile = CreateFile(
                "\\\\.\\D:", 
                /* "GENERIC_WRITE" for writing access. */
                GENERIC_READ,
                /* Necessary to allow other programs to read and write to the
                 * device.
                 */
                FILE_SHARE_READ | FILE_SHARE_WRITE,
                NULL,
                OPEN_EXISTING,
                FILE_ATTRIBUTE_NORMAL,
                NULL
        );
        if (hFile == INVALID_HANDLE_VALUE) {
                fprintf(stderr, "Cuuld not open file: %lu\n", GetLastError());
                return 1;
        }

        if (ReadFile(hFile, buf, SECTOR_SIZE, &rd, NULL) == FALSE) {
                fprintf(stderr, "Could not read file: %lu\n", GetLastError());
                CloseHandle(hFile);
                return 1;
        }
        for (size_t i = 0; i < SECTOR_SIZE; i++)
                printf("%X ", buf[i]);

        CloseHandle(hFile);
        return 0;
}