C++ Windows获取插入/删除移动盘的盘符

最新推荐文章于 2024-07-02 15:32:10 发布

原创最新推荐文章于 2024-07-02 15:32:10 发布 · 612 阅读

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#c++

由于未提供博客具体内容，推测该博客围绕C++展开，C++是后端开发常用语言，在软件开发等信息技术领域有广泛应用。

    //外设消息定义
    DEV_BROADCAST_HDR *dev = (DEV_BROADCAST_HDR *)lParam;
    DEV_BROADCAST_VOLUME *dev_vol;
    DWORD unitmask;
    char label[4] = { 0, ':', '\\', 0 };
    DISK_INFO diskinfo;
    UINT disktype;
    int i;
    int ret;
    switch (wParam)
    {
		case DBT_DEVICEARRIVAL:// 插入消息
		{
			switch (dev->dbch_devicetype)
			{
			case DBT_DEVTYP_VOLUME:
			{
				dev_vol = (DEV_BROADCAST_VOLUME *)dev;
				unitmask = dev_vol->dbcv_unitmask;
				for (i = 0; i < 26 && unitmask; i++)
				{
					if (unitmask & 0x01)
					{
						label[0] = 'A' + i;
						label[2] = 0;
						switch (dev_vol->dbcv_flags)
						{
						case 0:
							//U盘被插入 卷标为label
							break;
						default:
							break;
						}
					}
					unitmask >>= 1;
				}
			}
			break;
			}
		}
		break;
        case DBT_DEVICEREMOVECOMPLETE:
		{
            //设备卸载或者拔出
			switch (dev->dbch_devicetype)
			{
			case DBT_DEVTYP_VOLUME:
			{
				dev_vol = (DEV_BROADCAST_VOLUME *)dev;
				unitmask = dev_vol->dbcv_unitmask;
				for (i = 0; i < 26 && unitmask; i++)
				{
					if (unitmask & 0x01) {
						label[0] = 'A' + i;
						label[2] = 0;
						switch (dev_vol->dbcv_flags)
						{
						case 0:
							//U盘被拔出 卷标为label
							break;
						default:
							break;
						}
					}
					unitmask >>= 1;
				}
			}
			break;
			}
		}
		break;
    }