public static bool TryGetSerialPortName(HDEVINFO deviceInfoSet, ref SP_DEVINFO_DATA deviceInfoData, out string portName)
{
portName = null;
IntPtr hkey = NativeMethods.SetupDiOpenDevRegKey(deviceInfoSet, ref deviceInfoData);
if (hkey != (IntPtr)(-1))
{
try
{
char[] portNameChars = new char[64]; int portNameLength = 63 * 2;
if (0 == NativeMethods.RegQueryValueEx(hkey, "PortName", 0, IntPtr.Zero, portNameChars, ref portNameLength))
{
Array.Resize(ref portNameChars, portNameLength / 2);
string newPortName = NativeMethods.NTString(portNameChars);
if (newPortName.Length >= 4 && newPortName.StartsWith("COM"))
{
portName = newPortName;
}
}
}
finally
{
NativeMethods.RegCloseKey(hkey);
}
}
return(portName != null);
}
public static extern Boolean SetupDiGetDeviceInterfaceDetail(
HDEVINFO DeviceInfoSet,
ref SP_DEVICE_INTERFACE_DATA DeviceInterfaceData,
IntPtr DeviceInterfaceDetailData, //ref SP_DEVICE_INTERFACE_DETAIL_DATA
DWORD DeviceInterfaceDetailDataSize,
ref WORD RequiredSize,
IntPtr DeviceInfoData //ref SP_DEVINFO_DATA
);
public static bool TryGetDeviceRegistryProperty(HDEVINFO deviceInfoSet, ref SP_DEVINFO_DATA deviceInfoData, uint property, out string value)
{
value = null;
uint propertyDataType; char[] propertyValueChars = new char[64]; int propertyValueLength = 63 * 2;
if (SetupDiGetDeviceRegistryProperty(deviceInfoSet, ref deviceInfoData, property, out propertyDataType,
propertyValueChars, propertyValueLength, IntPtr.Zero))
{
if (propertyDataType == REG_SZ)
{
value = NativeMethods.NTString(propertyValueChars);
}
}
return(value != null);
}
private static string[] getHIDPath()
{
ArrayList pathList = new ArrayList();
Guid guid = new Guid();
HidD_GetHidGuid(ref guid);
// HIDに関する情報を持つ構造体の配列を取得する
HDEVINFO hDevInfo = SetupDiGetClassDevs(ref guid, IntPtr.Zero, IntPtr.Zero, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
SP_DEVICE_INTERFACE_DATA spid = new SP_DEVICE_INTERFACE_DATA();
spid.cbSize = (UInt32)Marshal.SizeOf(spid);
int i = 0;
// usbデバイスを列挙する。なくなったら0を返す。
while (SetupDiEnumDeviceInterfaces(hDevInfo, 0, ref guid, i++, ref spid))
{
ushort size = 0;
//デバイスインターフェース詳細情報のメモリサイズを取得する.
SetupDiGetDeviceInterfaceDetail(hDevInfo, ref spid, IntPtr.Zero, 0, ref size, IntPtr.Zero);
SP_DEVICE_INTERFACE_DETAIL_DATA detail = new SP_DEVICE_INTERFACE_DETAIL_DATA();
if (IntPtr.Size == 8) // for 64 bit operating systems
{
detail.cbSize = 8;
}
else
{
detail.cbSize = 4 + (uint)Marshal.SystemDefaultCharSize; // for 32 bit systems
}
ushort len = 0;
if (SetupDiGetDeviceInterfaceDetail(hDevInfo, ref spid, ref detail, size, ref len, IntPtr.Zero))
{
//デバイスへアクセスするためのパスが手に入った
pathList.Add(detail.DevicePath);
}
}
return((String[])pathList.ToArray(typeof(String)));
}
public static bool SetupDiGetDeviceInterfaceDetail(HDEVINFO deviceInfoSet,
ref SP_DEVICE_INTERFACE_DATA deviceInterfaceData,
out SP_DEVICE_INTERFACE_DETAIL_DATA deviceInterfaceDetailData)
{
deviceInterfaceDetailData = new NativeMethods.SP_DEVICE_INTERFACE_DETAIL_DATA();
deviceInterfaceDetailData.Size = IntPtr.Size == 8 ? 8 : (4 + Marshal.SystemDefaultCharSize);
if (NativeMethods.SetupDiGetDeviceInterfaceDetail(deviceInfoSet,
ref deviceInterfaceData, ref deviceInterfaceDetailData,
Marshal.SizeOf(deviceInterfaceDetailData) - 4, IntPtr.Zero, IntPtr.Zero))
{
return(true);
}
else
{
deviceInterfaceDetailData = default(SP_DEVICE_INTERFACE_DETAIL_DATA);
return(false);
}
}
public static extern bool SetupDiGetDeviceRegistryProperty(HDEVINFO deviceInfoSet,
ref SP_DEVINFO_DATA deviceInfoData,
uint property, out uint propertyDataType,
char[] buffer, int lengthInBytes, IntPtr lengthInBytesRequired);
public static extern bool SetupDiGetDeviceInterfaceDetail(HDEVINFO deviceInfoSet,
ref SP_DEVICE_INTERFACE_DATA deviceInterfaceData,
ref SP_DEVICE_INTERFACE_DETAIL_DATA deviceInterfaceDetailData,
int deviceInterfaceDetailDataSize, IntPtr requiredSize, IntPtr deviceInfoData);
public static extern bool SetupDiEnumDeviceInterfaces(HDEVINFO deviceInfoSet, ref SP_DEVINFO_DATA deviceInfoData,
[MarshalAs(UnmanagedType.LPStruct)] Guid interfaceClassGuid, int memberIndex,
ref SP_DEVICE_INTERFACE_DATA deviceInterfaceData);
public static extern bool SetupDiDestroyDeviceInfoList(HDEVINFO deviceInfoSet);
public static extern bool SetupDiGetDeviceInterfaceDetail(HDEVINFO deviceInfoSet,
ref SP_DEVICE_INTERFACE_DATA deviceInterfaceData,
ref SP_DEVICE_INTERFACE_DETAIL_DATA deviceInterfaceDetailData,
int deviceInterfaceDetailDataSize, IntPtr requiredSize, IntPtr deviceInfoData);
public static extern bool SetupDiEnumDeviceInterfaces(HDEVINFO deviceInfoSet, IntPtr deviceInfoData,
[MarshalAs(UnmanagedType.LPStruct)] Guid interfaceClassGuid, int memberIndex,
ref SP_DEVICE_INTERFACE_DATA deviceInterfaceData);
public static extern bool SetupDiDestroyDeviceInfoList(HDEVINFO deviceInfoSet);
public static extern int SerialDisplayAdvancedSettings(HWND ParentHwnd, HDEVINFO DeviceInfoSet, [NativeTypeName("PSP_DEVINFO_DATA")] void *DeviceInfoData);
public static extern IntPtr SetupDiOpenDevRegKey(HDEVINFO deviceInfoSet,
ref SP_DEVINFO_DATA deviceInfoData,
int scope = DICS_FLAG_GLOBAL,
int profile = 0,
int keyType = DIREG_DEV,
uint desiredAccess = KEY_READ);
public static extern bool SetupDiEnumDeviceInfo(HDEVINFO deviceInfoSet, int memberIndex,
ref SP_DEVINFO_DATA deviceInfoData);
public static extern IntPtr SetupDiOpenDeviceInterfaceRegKey(HDEVINFO deviceInfoSet,
ref SP_DEVICE_INTERFACE_DATA deviceInterfaceData,
uint reserved = 0,
uint desiredAccess = KEY_READ);
public static extern bool SetupDiEnumDeviceInterfaces(
HDEVINFO DeviceInfoSet, int DeviceInfoData, ref Guid InterfaceClassGuid,
int MemberIndex, ref SP_DEVICE_INTERFACE_DATA DeviceInterfaceData);
