获取GPT 分区信息

最新推荐文章于 2023-05-19 22:27:00 发布

Andy-Action-Now

最新推荐文章于 2023-05-19 22:27:00 发布

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CC 4.0 BY-SA版权

分类专栏： WIndows API

本文链接：https://blog.youkuaiyun.com/daddy_long_legs/article/details/11602769

该博客介绍了如何使用IOCTL_DISK_GET_PARTITION_INFO_EX控制代码从设备中获取磁盘分区的详细信息。它涉及到DeviceIoControl函数的使用，参数解释以及在不同类型的磁盘上支持的情况，特别提到了在64位系统上对GUID分区表(GPT)的支持。

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IOCTL_DISK_GET_PARTITION_INFO_EX control code
Retrieves extended information about the type, size, and nature of a disk partition.
To perform this operation, call the DeviceIoControl function with the following parameters.

BOOL DeviceIoControl(
  (HANDLE) hDevice,                 // handle to a partition
  IOCTL_DISK_GET_PARTITION_INFO_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
);

Parameters
hDevice
A handle to the disk device from which partition information is retrieved. To retrieve a device handle, call the CreateFile function.
dwIoControlCode
The control code for the operation. Use IOCTL_DISK_GET_PARTITION_INFO_EX for this operation.