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驱动器盘符的接口类型

发布于 2024-09-08 00:19:05 字数 80 浏览 1 评论 0原文

关于获取卷的设备接口类型（给定驱动器号（例如 G:））有什么建议吗？具体来说，我正在寻找一种不依赖于 WMI 的解决方案。

谢谢。

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夜访吸血鬼 2024-09-15 00:19:05

您可以使用 GetDriveType 获取驱动器盘符的基本接口类型（即：可移动设备、CDROM、RAMDisk），另请参阅该页面底部的最终评论，了解有关可移动设备的更多信息。另请查看 SetupDiGetDeviceRegistryProperty 和 < a href="https://learn.microsoft.com/en-us/windows/win32/api/ioapiset/nf-ioapiset-deviceiocontrol" rel="nofollow noreferrer">DeviceIoControl

她是我最好的例子可以想出（未经测试，因为我没有 WDK/DDK）

bool IsUSBDevice(const char* szDrivePath, bool& bRemovable)
{
    if(GetDriveType(szDrivePath) != DRIVE_REMOVABLE)
        return false;
        
    HANDLE hDevice = CreateFile(szDrivePath,0,FILE_SHARE_READ|FILE_SHARE_WRITE,NULL,OPEN_EXISTING,0,NULL);
    if(hDevice == INVALID_HANDLE_VALUE)
        return false;

    STORAGE_PROPERTY_QUERY pQuery = {0};
    pQuery.PropertyId = StorageDeviceProperty;
    pQuery.QueryType = PropertyStandardQuery;

    STORAGE_DEVICE_DESCRIPTOR pDeviceDesc = {0};
    pDeviceDesc.Size = sizeof(pDeviceDesc);
    DWORD dwWritten = 0;
    if(DeviceIoControl(hDevice,IOCTL_STORAGE_QUERY_PROPERTY,&pQuery,sizeof(STORAGE_PROPERTY_QUERY),pDeviceDesc,sizeof(pDeviceDesc),&dwWritten,NULL))
    {
        CloseHandle(hDevice);
        return ((bRemovable = pDeviceDesc.RemovableMedia) && pDeviceDesc.BusType == BusTypeUsb);
    }
    else
        CloseHandle(hDevice);
           
    return false; 
}

You can use GetDriveType to get the basic interface type(ie: removable device, CDROM, RAMDisk) for the drive letter, also see the final comment at the bottom of that page for a little more info on removable devices. Also check out SetupDiGetDeviceRegistryProperty and DeviceIoControl

Her is the best example I can come up with(untested as I don't have the WDK/DDK)

bool IsUSBDevice(const char* szDrivePath, bool& bRemovable)
{
    if(GetDriveType(szDrivePath) != DRIVE_REMOVABLE)
        return false;
        
    HANDLE hDevice = CreateFile(szDrivePath,0,FILE_SHARE_READ|FILE_SHARE_WRITE,NULL,OPEN_EXISTING,0,NULL);
    if(hDevice == INVALID_HANDLE_VALUE)
        return false;

    STORAGE_PROPERTY_QUERY pQuery = {0};
    pQuery.PropertyId = StorageDeviceProperty;
    pQuery.QueryType = PropertyStandardQuery;

    STORAGE_DEVICE_DESCRIPTOR pDeviceDesc = {0};
    pDeviceDesc.Size = sizeof(pDeviceDesc);
    DWORD dwWritten = 0;
    if(DeviceIoControl(hDevice,IOCTL_STORAGE_QUERY_PROPERTY,&pQuery,sizeof(STORAGE_PROPERTY_QUERY),pDeviceDesc,sizeof(pDeviceDesc),&dwWritten,NULL))
    {
        CloseHandle(hDevice);
        return ((bRemovable = pDeviceDesc.RemovableMedia) && pDeviceDesc.BusType == BusTypeUsb);
    }
    else
        CloseHandle(hDevice);
           
    return false; 
}

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