GetDiskFreeSpace与GetDiskFreeSpaceEx获取磁盘空间信息总结

人亦已歌 · 发表于 2023-2-15 21:56:07

#include <stdio.h>
#include <Windows.h>
#include <stdlib.h>
#define BUFSIZE 1024

int main(){
        DWORD lpSectorsPerCluster;
        DWORD lpBytesPerSector;
        DWORD lpNumberOfFreeClusters;
        DWORD lpTotalNumberOfCluster;

        GetDiskFreeSpace(TEXT("D:"),
          &lpSectorsPerCluster,
          &lpBytesPerSector,
          &lpNumberOfFreeClusters,
          &lpTotalNumberOfCluster);
        printf("GetDiskFreeSpace获取的磁盘容量信息\n");
        printf("每簇的扇区数量%d\n",lpSectorsPerCluster);
        printf("每扇区的字节数%d\n",lpBytesPerSector);
        printf("空闲的簇数量%d\n",lpNumberOfFreeClusters);
        printf("总簇数%d\n",lpTotalNumberOfCluster);
        printf("磁盘容量%I64d\n",(DWORD64)lpTotalNumberOfCluster*(DWORD64)lpSectorsPerCluster*(DWORD64)lpBytesPerSector);
        printf("空闲容量%I64d\n\n\n\n",(DWORD64)lpNumberOfFreeClusters*(DWORD64)lpSectorsPerCluster*(DWORD64)lpBytesPerSector);
        
        
        DWORD lpFreeBytesAvailableToCaller;
        DWORD lpTotalNumberOfBytes;
        DWORD lpTotalNumberOfFreeBytes;

        GetDiskFreeSpaceEx(TEXT("D:"), //获取不准确
                (PULARGE_INTEGER)&lpFreeBytesAvailableToCaller,
                (PULARGE_INTEGER)&lpTotalNumberOfBytes,
                (PULARGE_INTEGER)&lpTotalNumberOfFreeBytes
        );
        printf("GetDiskFreeSpaceEx获取的磁盘容量信息\n");
        printf("总容量字节数%I64d\n",lpTotalNumberOfBytes);
        printf("可用空闲字节数%I64d\n",lpFreeBytesAvailableToCaller);
        printf("总空闲字节数%I64d\n",lpTotalNumberOfFreeBytes);

        system("pause");
        return 0;
}