[英]How to Push data from C# to ZeroMQ and Pull from Node.JS or vice-versa?
[英]How to identify HID Device with information from BluetoothDeviceInfo or vice-versa
我正在尝试编写一个程序,使与Windows配对的Wiimotes的管理更加简单和自动化。 该程序使用WiimoteLib (使用hidsdi.h和setupapi.h )连接到Wiimote设备,并使用 32feet (使用Windows Bluetooth API )自动配对/ 取消配对设备。 配对器/取消配对器的代码基于Wiipair 。 目前,该过程有些颠簸且缓慢,但是可以正常工作。 (但仅适用于一位Wiimote)
问题是我的蓝牙设备配对/取消配对模块没有关于如何识别HID设备(由Wiimote类使用)是否为同一设备的信息。 如果蓝牙设备已被强制关闭或未配对,我希望能够向Wiimote类发出警报,以便它可以正常断开连接。 反之亦然,当HID设备断开连接时,我希望Wiimote提醒配对器/取消配对器,以便可以选择取消配对Bluetooth设备(假设您计划关闭Wiimote)。
如果我只想访问一个Wiimote,那么这不是什么大问题,但是我希望能够访问多个Wiimotes,并能够通过使用其HID信息和蓝牙信息来区分它们。 我已经在使用自己的P / Invoke来弥补32feet所欠缺的区域,因此再使用也不是问题。
这是我的配对器的主要代码。 (尽管我不确定是否真的必要):
(注意: IsDiscoverable()
, ToPin()
和ToMacAddress()
都是扩展方法。)
// Once this is true, the Wiimote will
// attempt to connect to an HID device.
public bool IsAnyDeviceAvailable { get; private set; }
private void PairTask(CancellationToken token) {
// Setup automatic authentication
BluetoothWin32Authentication auth = new BluetoothWin32Authentication(OnHandleRequests);
while (!token.IsCancellationRequested)
PairLoop(token);
}
private void PairLoop(CancellationToken token) {
// Get a copy of known addresses since
// these are added to in another task.
BluetoothAddress[] addresses;
lock (knownAddresses)
addresses = KnownAddresses.ToArray();
bool available = false;
foreach (BluetoothAddress address in addresses) {
if (token.IsCancellationRequested)
return;
BluetoothDeviceInfo device = new BluetoothDeviceInfo(address);
if (device.Connected) {
if (!available && !IsAnyDeviceAvailable) {
lock (knownAddresses)
IsAnyDeviceAvailable = true;
}
available = true;
continue;
}
if (device.Remembered) {
RemoveDevice(device, token);
}
else if (device.IsDiscoverable() && !device.Authenticated) {
if (PairDevice(device, token, available))
available = true;
}
token.WaitHandle.WaitOne(500);
}
if (!available && IsAnyDeviceAvailable) {
Trace.WriteLine("No more devices connected");
lock (knownAddresses)
IsAnyDeviceAvailable = false;
}
}
private void RemoveDevice(BluetoothDeviceInfo device, CancellationToken token) {
token.WaitHandle.WaitOne(1000);
if (BluetoothSecurity.RemoveDevice(device.DeviceAddress)) {
Trace.WriteLine($"Wiimote removed: {device.DeviceAddress.ToMacAddress()}");
token.WaitHandle.WaitOne(2000);
}
}
private bool PairDevice(BluetoothDeviceInfo device, CancellationToken token,
bool available)
{
string pin = device.DeviceAddress.ToPin();
try {
if (BluetoothSecurity.PairRequest(device.DeviceAddress, pin)) {
Trace.WriteLine($"Wiimote authenticated: {device.DeviceAddress.ToMacAddress()}");
token.WaitHandle.WaitOne(1000);
// Calling this before and after seems to help unsure
// the device works when paired programmatically.
Guid[] services = device.InstalledServices;
device.SetServiceState(Uuids.HumanInterfaceDeviceServiceClass_UUID, true, true);
services = device.InstalledServices;
Trace.WriteLine($"Wiimote paired: {device.DeviceAddress.ToMacAddress()}");
token.WaitHandle.WaitOne(8000);
if (!available && !IsAnyDeviceAvailable) {
Trace.WriteLine("First device has been connected");
lock (knownAddresses)
IsAnyDeviceAvailable = true;
}
return true;
}
else {
Trace.WriteLine($"Wiimote authentication failed: {device.DeviceAddress.ToMacAddress()}");
}
}
catch {
Trace.WriteLine($"Wiimote pairing failed: {device.DeviceAddress.ToMacAddress()}");
}
return false;
}
private void OnHandleRequests(object sender, BluetoothWin32AuthenticationEventArgs e) {
e.Confirm = true;
}
您无需与Wiimote配对。 与Wiimote配对仅做一件事:Wiimote记住配对设备的MAC,然后可以将其运行并连接到它(太Wii或其他设备)。 但是,它在Windows上无法使用,因此不需要配对。 如果需要配对,请使用旧式PIN配对。 PIN是按反向字节顺序的Wiimote MAC。
使用BluetoothSetServiceState将您的Wiimote作为HID设备添加到系统中。
以下代码显示了如何通过其MAC查找Wiimote HID(该代码取自我们的无线通信库 ,其中包括对Wiimote的支持)。
m_fInstalled = true;
Sleep(1000);
CwclStringList* Wiis = new CwclStringList();
m_sDevicePath = WCL_EMPTY_STR;
DWORD dwTik = GetTickCount();
while (m_sDevicePath == WCL_EMPTY_STR && GetTickCount() - dwTik < 20000)
if (EnumHID(*Wiis) == WCL_E_SUCCESS)
{
CwclString sAddress = GetBluetoothParams()->GetAddress();
CwclString sAdr = sAddress.Mid(1, 2) + sAddress.Mid(4, 2) + sAddress.Mid(7, 2) + sAddress.Mid(10, 2) + sAddress.Mid(13, 2) + sAddress.Mid(16, 2);
HKEY hKey;
CwclString aRegKey(WCL_WII_REG_KEY);
DWORD dwRes = RegOpenKey(HKEY_LOCAL_MACHINE, aRegKey, &hKey);
if (dwRes != ERROR_SUCCESS)
aRegKey = CwclString(WCL_WII_REG_KEY_NEW);
dwRes = RegOpenKey(HKEY_LOCAL_MACHINE, aRegKey, &hKey);
if (dwRes == ERROR_SUCCESS)
{
DWORD dwNdx = 0;
WCHAR szSubKeyName[512];
DWORD dwSubKeySize = sizeof(szSubKeyName);
ZeroMemory(szSubKeyName, dwSubKeySize);
while (RegEnumKeyEx(hKey, dwNdx, szSubKeyName, &dwSubKeySize, NULL, NULL, NULL, NULL) == ERROR_SUCCESS)
{
CwclString sSubKeyStr = CwclString(szSubKeyName);
if (sSubKeyStr.Find(sAdr) >= 0)
{
CwclString sSubKeyPath = aRegKey + L"\\" + sSubKeyStr;
HKEY hSubKey;
dwRes = RegOpenKey(HKEY_LOCAL_MACHINE, sSubKeyPath, &hSubKey);
if (dwRes == ERROR_SUCCESS)
{
WCHAR szValue[512];
DWORD dwValueSize = sizeof(szValue);
ZeroMemory(szValue, dwValueSize);
dwRes = RegQueryValueEx(hSubKey, L"ParentIdPrefix", NULL, NULL, (LPBYTE)szValue, &dwValueSize);
if (dwRes == ERROR_SUCCESS)
{
CwclString sValueStr = CwclString(szValue);
for (INT_PTR i = 0; i < Wiis->GetCount(); i++)
if (Wiis->GetItems(i).Find(sValueStr) >= 0)
{
m_sDevicePath = Wiis->GetItems(i);
break;
}
}
RegCloseKey(hSubKey);
}
}
if (m_sDevicePath != WCL_EMPTY_STR)
break;
dwSubKeySize = sizeof(szSubKeyName);
ZeroMemory(szSubKeyName, dwSubKeySize);
dwNdx++;
}
RegCloseKey(hKey);
}
}
一旦获得DevicePath,就可以使用CreateFile打开HID设备的句柄。
我忘了添加EnumHid函数。 这里是
int CwclWiimote::EnumHID(CwclStringList& rWiis)
{
if (!wclIsTransportAvailable(trBluetooth))
return WCL_E_TRANSPORT_NOT_AVAILABLE;
GUID Guid;
HidD_GetHidGuid(&Guid);
HDEVINFO hDevInfo = SetupDiGetClassDevs(&Guid, NULL, 0, DIGCF_DEVICEINTERFACE);
if (hDevInfo == INVALID_HANDLE_VALUE)
return WCL_E_INTERNAL;
SP_DEVICE_INTERFACE_DATA diData;
ZeroMemory(&diData, sizeof(SP_DEVICE_INTERFACE_DATA));
diData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
rWiis.Clear();
DWORD dwIndex = 0;
PSP_DEVICE_INTERFACE_DETAIL_DATA_W diDetail;
while (SetupDiEnumDeviceInterfaces(hDevInfo, NULL, &Guid, dwIndex, &diData))
{
DWORD dwSize = 0;
SetupDiGetDeviceInterfaceDetail(hDevInfo, &diData, NULL, 0, &dwSize, NULL);
diDetail = (PSP_DEVICE_INTERFACE_DETAIL_DATA_W)LocalAlloc(LPTR, dwSize);
if (diDetail)
{
ZeroMemory(diDetail, dwSize);
diDetail->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA_W);
if (SetupDiGetDeviceInterfaceDetail(hDevInfo, &diData, diDetail, dwSize, &dwSize, NULL))
{
HANDLE hHandle = CreateFile(diDetail->DevicePath, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL);
if (hHandle != INVALID_HANDLE_VALUE)
{
HIDD_ATTRIBUTES Attrib;
ZeroMemory(&Attrib, sizeof(HIDD_ATTRIBUTES));
Attrib.Size = sizeof(HIDD_ATTRIBUTES);
if (HidD_GetAttributes(hHandle, &Attrib))
if (Attrib.VendorID == WCL_WII_VID && (Attrib.ProductID == WCL_WII_PID || Attrib.ProductID == WCL_WII_PID_NEW))
{
CwclString Str = diDetail->DevicePath;
rWiis.Add(Str);
}
CloseHandle(hHandle);
}
}
LocalFree((HLOCAL)diDetail);
}
dwIndex++;
}
SetupDiDestroyDeviceInfoList(hDevInfo);
return WCL_E_SUCCESS;
}
为了检测Wiimote断开连接,当从Wiimote读取HID数据包时,我们在ReadFile上使用了错误。 该方法适用于任何蓝牙驱动程序(所有关于MS的驱动程序)。 但是,对于MS,您还可以使用HCI_DISCONNECT标志来处理WM_DEVICE_CHANGE。
在那里使用的常量:
#define WCL_WII_VID 0x057E
#define WCL_WII_PID 0x0306
#define WCL_WII_PID_NEW 0x0330
#define WCL_WII_REG_KEY (L"SYSTEM\\CurrentControlSet\\Enum\\BTHENUM\\{00001124-0000-1000-8000-00805f9b34fb}_VID&0002057e_PID&0306")
#define WCL_WII_REG_KEY_NEW (L"SYSTEM\\CurrentControlSet\\Enum\\BTHENUM\\{00001124-0000-1000-8000-00805f9b34fb}_VID&0002057e_PID&0330")
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