检测SD卡硬件的驱动器号 [英] Detect drive letter of SD card hardware

问题描述

是否可以在Windows上以编程方式检测SD卡的驱动器号?该方法是否支持内部和外部SD卡硬件?谢谢您的时间.

Is there a way to programatically detect the driver letter of an SD card(s) on Windows? Does the method support internal and external SD card hardware? Thank you for your time.

推荐答案

您可以尝试

You can try GetLogicalDriveStrings to get the drive letters and then use GetDriveType to see, whether a drive is removable or not. Then you can get more device information like this (example is for cd-rom but should show you the idea):

//handle to the drive to be examined
HANDLE hDevice = CreateFile(TEXT("\\\\.\\G:"), //Drive to open
GENERIC_READ|GENERIC_WRITE, //Access to the drive
FILE_SHARE_READ|FILE_SHARE_WRITE, //Share mode
NULL, //Security
OPEN_EXISTING,0, // no file attributes
NULL);

if (hDevice == INVALID_HANDLE_VALUE) return 0;

CDROM_TOC val; // table of contents for a generic CDROM
DWORD nBytesReturned;

BOOL bResult= DeviceIoControl(
hDevice,
IOCTL_CDROM_READ_TOC,//operation to perform
&val, sizeof(val),//no input buffer
&val, sizeof(val),//output buffer
&nBytesReturned,//#bytes returned
(LPOVERLAPPED) NULL);//synchronous I/O

CloseHandle(hDevice);

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