磁盘容量

#include <Windows.h>
#include <stdio.h>
int main()
{
    BOOL bResult;
    //        簇
    DWORD dwTotalClusters;
    //     扇区
    DWORD dwSectPerClust;
    //     字节
    DWORD dwBytesPerSect;
    //     空闲簇
    DWORD dwFreeClusters;
    bResult = GetDiskFreeSpace(TEXT("C:"),&dwSectPerClust,&dwBytesPerSect,&dwFreeClusters,&dwTotalClusters);
    if(bResult)
    {
        printf("使用GetDiskFreeSpace获取磁盘空间信息\n");
        printf("总簇的数量：\t\t\t%d\n",dwTotalClusters);
        printf("每簇的扇区数量：\t\t%d\n",dwSectPerClust);
        printf("每扇区的字节数：\t\t%d\n",dwBytesPerSect);
        printf("空闲簇数量：\t\t%d\n",dwFreeClusters);
        printf("磁盘总容量：\t\t\t%I64d\n",(DWORD64)dwTotalClusters*(DWORD64)dwSectPerClust*(DWORD64)dwBytesPerSect);
        printf("磁盘空闲容量：\t\t\t%I64d\n",(DWORD64)dwFreeClusters*(DWORD64)dwSectPerClust*(DWORD64)dwBytesPerSect);
    }

    printf("\n\n");

    DWORD64 qwFreeBytes, qwFreeBytesToCaller, qwTotalBytes;
    bResult = GetDiskFreeSpaceEx(TEXT("C:"),
        (PULARGE_INTEGER)&qwFreeBytesToCaller,
        (PULARGE_INTEGER)&qwTotalBytes,
        (PULARGE_INTEGER)&qwFreeBytes);
    if(bResult)
    {
        printf("磁盘总容量：\t\t\t%I64d\n", qwTotalBytes);
        printf("可用磁盘空闲容量：\t\t%I64d\n",qwFreeBytes);
        printf("磁盘空闲容量：\t\t\t%I64d\n", qwFreeBytesToCaller);
    }
    system("pause");
    return 0;
}