/// <summary>
/// 通过设备类型枚举设备信息
/// </summary>
/// <param name="DeviceIndex"></param>
/// <param name="ClassName"></param>
/// <param name="DeviceName"></param>
/// <returns></returns>
public static int EnumerateDevices(UInt32 DeviceIndex, string ClassName, StringBuilder DeviceName, StringBuilder DeviceID, StringBuilder Mfg, StringBuilder IsInstallDrivers)
{
UInt32 RequiredSize = 0;
Guid guid = Guid.Empty;
Guid[] guids = new Guid[1];
IntPtr NewDeviceInfoSet;
SP_DEVINFO_DATA DeviceInfoData = new SP_DEVINFO_DATA();
bool res = SetupDiClassGuidsFromNameA(ClassName, ref guids[0], RequiredSize, ref RequiredSize);
if (RequiredSize == 0)
{
//类型不正确
DeviceName = new StringBuilder("");
return(-2);
}
if (res == false)
{
guids = new Guid[RequiredSize];
res = SetupDiClassGuidsFromNameA(ClassName, ref guids[0], RequiredSize, ref RequiredSize);
if (!res || RequiredSize == 0)
{
//类型不正确
DeviceName = new StringBuilder("");
return(-2);
}
}
//通过类型获取设备信息
NewDeviceInfoSet = SetupDiGetClassDevsA(ref guids[0], 0, IntPtr.Zero, DIGCF_PRESENT);
if (NewDeviceInfoSet.ToInt32() == -1)
{
//设备不可用
DeviceName = new StringBuilder("");
return(-3);
}
DeviceInfoData.cbSize = 28;
//正常状态
DeviceInfoData.DevInst = 0;
DeviceInfoData.ClassGuid = System.Guid.Empty;
DeviceInfoData.Reserved = 0;
res = SetupDiEnumDeviceInfo(NewDeviceInfoSet,
DeviceIndex, DeviceInfoData);
if (!res)
{
//没有设备
SetupDiDestroyDeviceInfoList(NewDeviceInfoSet);
DeviceName = new StringBuilder("");
return(-1);
}
DeviceName.Capacity = MAX_DEV_LEN;
DeviceID.Capacity = MAX_DEV_LEN;
Mfg.Capacity = MAX_DEV_LEN;
IsInstallDrivers.Capacity = MAX_DEV_LEN;
if (!SetupDiGetDeviceRegistryPropertyA(NewDeviceInfoSet, DeviceInfoData,
SPDRP_FRIENDLYNAME, 0, DeviceName, MAX_DEV_LEN, IntPtr.Zero))
{
res = SetupDiGetDeviceRegistryPropertyA(NewDeviceInfoSet,
DeviceInfoData, SPDRP_DEVICEDESC, 0, DeviceName, MAX_DEV_LEN, IntPtr.Zero);
if (!res)
{
//类型不正确
SetupDiDestroyDeviceInfoList(NewDeviceInfoSet);
DeviceName = new StringBuilder("");
return(-4);
}
}
//设备ID
bool resHardwareID = SetupDiGetDeviceRegistryPropertyA(NewDeviceInfoSet,
DeviceInfoData, SPDRP_HARDWAREID, 0, DeviceID, MAX_DEV_LEN, IntPtr.Zero);
if (!resHardwareID)
{
//设备ID未知
DeviceID = new StringBuilder("");
DeviceID.Append("未知");
}
//设备供应商
bool resMfg = SetupDiGetDeviceRegistryPropertyA(NewDeviceInfoSet,
DeviceInfoData, SPDRP_MFG, 0, Mfg, MAX_DEV_LEN, IntPtr.Zero);
if (!resMfg)
{
//设备供应商未知
Mfg = new StringBuilder("");
Mfg.Append("未知");
}
//设备是否安装驱动
bool resIsInstallDrivers = SetupDiGetDeviceRegistryPropertyA(NewDeviceInfoSet,
DeviceInfoData, SPDRP_DRIVER, 0, IsInstallDrivers, MAX_DEV_LEN, IntPtr.Zero);
if (!resIsInstallDrivers)
{
//设备是否安装驱动
IsInstallDrivers = new StringBuilder("");
}
//释放当前设备占用内存
SetupDiDestroyDeviceInfoList(NewDeviceInfoSet);
return(0);
}
/// <summary>
/// 枚举设备类型
/// </summary>
/// <param name="ClassIndex"></param>
/// <param name="ClassName">设备类型名称</param>
/// <param name="ClassDescription">设备类型说明</param>
/// <param name="DevicePresent"></param>
/// <returns></returns>
public static int EnumerateClasses(UInt32 ClassIndex, StringBuilder ClassName, StringBuilder ClassDescription, ref bool DevicePresent)
{
Guid ClassGuid = Guid.Empty;
IntPtr NewDeviceInfoSet;
UInt32 result;
SP_DEVINFO_DATA DeviceInfoData = new SP_DEVINFO_DATA();
bool resNam = false;
UInt32 RequiredSize = 0;
result = CM_Enumerate_Classes(ClassIndex, ref ClassGuid, 0);
DevicePresent = false;
SP_CLASSIMAGELIST_DATA imagelist = new SP_CLASSIMAGELIST_DATA();
if (result != CR_SUCCESS)
{
return((int)result);
}
resNam = SetupDiClassNameFromGuidA(ref ClassGuid, ClassName, RequiredSize, ref RequiredSize);
if (RequiredSize > 0)
{
ClassName.Capacity = (int)RequiredSize;
resNam = SetupDiClassNameFromGuidA(ref ClassGuid, ClassName, RequiredSize, ref RequiredSize);
}
NewDeviceInfoSet = SetupDiGetClassDevsA(ref ClassGuid, 0, IntPtr.Zero, DIGCF_PRESENT);
if (NewDeviceInfoSet.ToInt32() == -1)
{
DevicePresent = false;
return(0);
}
UInt32 numD = 0;
DeviceInfoData.cbSize = 28;
DeviceInfoData.DevInst = 0;
DeviceInfoData.ClassGuid = System.Guid.Empty;
DeviceInfoData.Reserved = 0;
Boolean res1 = SetupDiEnumDeviceInfo(
NewDeviceInfoSet,
numD,
DeviceInfoData);
if (!res1)
{
DevicePresent = false;
return(0);
}
SetupDiDestroyDeviceInfoList(NewDeviceInfoSet);
IntPtr KeyClass = SetupDiOpenClassRegKeyExA(
ref ClassGuid, MAXIMUM_ALLOWED, DIOCR_INSTALLER, IntPtr.Zero, 0);
if (KeyClass.ToInt32() == -1)
{
DevicePresent = false;
return(0);
}
UInt32 sizeB = MAX_SIZE_DEVICE_DESCRIPTION;
ClassDescription.Capacity = MAX_SIZE_DEVICE_DESCRIPTION;
UInt32 res = RegQueryValueA(KeyClass, 0, ClassDescription, ref sizeB);
if (res != 0)
{
ClassDescription = new StringBuilder(""); //No device description
}
DevicePresent = true;
ClassesGuid = DeviceInfoData.ClassGuid;
return(0);
}
public static int EnumerateClasses(UInt32 ClassIndex,
ref StringBuilder ClassName, StringBuilder ClassDescription,
ref bool DevicePresent)
{
Guid ClassGuid = Guid.Empty;
IntPtr NewDeviceInfoSet;
SP_DEVINFO_DATA DeviceInfoData;
UInt32 result;
StringBuilder name = new StringBuilder("");
bool resNam = false;
UInt32 RequiredSize = 0;
IntPtr ptr;
result = CM_Enumerate_Classes(ClassIndex, ref ClassGuid, 0);
ClassName = new StringBuilder("");
DevicePresent = false;
//incorrect device class:
if (result == CR_INVALID_DATA)
{
return(-2);
}
//device class is absent
if (result == CR_NO_SUCH_VALUE)
{
return(-1);
}
//bad param. - fatal error
if (result != CR_SUCCESS)
{
return(-3);
}
name.Capacity = 0;
resNam = SetupDiClassNameFromGuidA(ref ClassGuid, name, RequiredSize,
ref RequiredSize);
if (RequiredSize > 0)
{
name.Capacity = (int)RequiredSize;
resNam = SetupDiClassNameFromGuidA(ref ClassGuid, name,
RequiredSize, ref RequiredSize);
}
NewDeviceInfoSet = SetupDiGetClassDevsA(
ref ClassGuid,
0,
IntPtr.Zero,
DIGCF_PRESENT);
if (NewDeviceInfoSet.ToInt32() == -1)
{
DevicePresent = false;
ClassName = name;
return(0);
}
IntPtr KeyClass = SetupDiOpenClassRegKeyExA(
ref ClassGuid, MAXIMUM_ALLOWED, DIOCR_INSTALLER, IntPtr.Zero, 0);
if (KeyClass.ToInt32() == -1)
{
DevicePresent = false;
ClassName = name;
return(0);
}
UInt32 sizeB = 1000;
String abcd = "";
StringBuilder CD = new StringBuilder("");
ClassDescription.Capacity = 1000;
UInt32 res = RegQueryValueA(KeyClass, 0, ClassDescription, ref sizeB);
if (res != 0)
{
ClassDescription = new StringBuilder("");
}
SetupDiDestroyDeviceInfoList(NewDeviceInfoSet);
ClassName = name;
DevicePresent = true;
return(0);
}