检测SD卡硬件盘符
有没有办法在 Windows 上以编程方式检测 SD 卡的驱动程序号?该方法是否支持内部和外部 SD 卡硬件?感谢您的宝贵时间.
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
你可以试试GetLogicalDriveStrings 获取驱动器号，然后使用 GetDriveType 查看驱动器是否可移动.然后您可以获得更多这样的设备信息(示例是 cd-rom，但应该向您展示这个想法):
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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