/// <summary>
/// 获取所有连接HID的设备
/// </summary>
/// <param name="deviceList">返回所有连接HID的设备</param>
private void GetDeviceList(ref List <string> deviceList)
{
Guid HIDGuid = Guid.Empty;
windowsApi.GetDeviceGuid(ref HIDGuid); //获取HID的全局GUID
IntPtr HIDInfoSet = windowsApi.GetClassDevOfHandle(HIDGuid); //获取包含所有HID接口信息集合的句柄
if (HIDInfoSet != IntPtr.Zero)
{
SP_DEVICE_INTERFACE_DATA interfaceInfo = new SP_DEVICE_INTERFACE_DATA();
interfaceInfo.cbSize = Marshal.SizeOf(interfaceInfo);
//检测集合的每个接口
for (uint index = 0; index < MAX_USB_DEVICES; index++)
{
//获取接口信息
if (!windowsApi.GetEnumDeviceInterfaces(HIDInfoSet, ref HIDGuid, index, ref interfaceInfo))
{
continue;
}
int buffsize = 0;
//获取接口详细信息；第一次读取错误，但可取得信息缓冲区的大小
windowsApi.GetDeviceInterfaceDetail(HIDInfoSet, ref interfaceInfo, IntPtr.Zero, ref buffsize);
//接受缓冲
IntPtr pDetail = Marshal.AllocHGlobal(buffsize);
SP_DEVICE_INTERFACE_DETAIL_DATA detail = new WindowsAPI.SP_DEVICE_INTERFACE_DETAIL_DATA();
detail.cbSize = Marshal.SizeOf(typeof(Test_tool4product_line.WindowsAPI.SP_DEVICE_INTERFACE_DETAIL_DATA));
Marshal.StructureToPtr(detail, pDetail, false);
if (windowsApi.GetDeviceInterfaceDetail(HIDInfoSet, ref interfaceInfo, pDetail, ref buffsize))//第二次读取接口详细信息
{
deviceList.Add(Marshal.PtrToStringAuto((IntPtr)((int)pDetail + 4)));
}
Marshal.FreeHGlobal(pDetail);
}
}
//删除设备信息并释放内存
windowsApi.DestroyDeviceInfoList(HIDInfoSet);
}
/// <summary>
/// 获取所有连接HID的设备
/// </summary>
/// <param name="deviceList">返回所有连接HID的设备</param>
private void GetDeviceList(ref List<string> deviceList)
{
Guid HIDGuid = Guid.Empty;
windowsApi.GetDeviceGuid(ref HIDGuid);//获取HID的全局GUID
IntPtr HIDInfoSet = windowsApi.GetClassDevOfHandle(HIDGuid);//获取包含所有HID接口信息集合的句柄
if (HIDInfoSet != IntPtr.Zero)
{
SP_DEVICE_INTERFACE_DATA interfaceInfo = new SP_DEVICE_INTERFACE_DATA();
interfaceInfo.cbSize = Marshal.SizeOf(interfaceInfo);
//检测集合的每个接口
for (uint index = 0; index < MAX_USB_DEVICES; index++) {
//获取接口信息
if (!windowsApi.GetEnumDeviceInterfaces(HIDInfoSet, ref HIDGuid, index, ref interfaceInfo))
continue;
int buffsize=0;
//获取接口详细信息；第一次读取错误，但可取得信息缓冲区的大小
windowsApi.GetDeviceInterfaceDetail(HIDInfoSet,ref interfaceInfo,IntPtr.Zero, ref buffsize);
//接受缓冲
IntPtr pDetail = Marshal.AllocHGlobal(buffsize);
SP_DEVICE_INTERFACE_DETAIL_DATA detail = new WindowsAPI.SP_DEVICE_INTERFACE_DETAIL_DATA();
detail.cbSize = Marshal.SizeOf(typeof(Test_tool4product_line.WindowsAPI.SP_DEVICE_INTERFACE_DETAIL_DATA));
Marshal.StructureToPtr(detail, pDetail, false);
if (windowsApi.GetDeviceInterfaceDetail(HIDInfoSet, ref interfaceInfo, pDetail, ref buffsize))//第二次读取接口详细信息
deviceList.Add(Marshal.PtrToStringAuto((IntPtr)((int)pDetail + 4)));
Marshal.FreeHGlobal(pDetail);
}
}
//删除设备信息并释放内存
windowsApi.DestroyDeviceInfoList(HIDInfoSet);
}
