public static extern bool SetupDiDestroyClassImageList(ref SP_CLASSIMAGELIST_DATA classImageListData);
/// <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 extern bool SetupDiGetClassImageIndex(ref SP_CLASSIMAGELIST_DATA classImageListData, ref Guid classGuid, out int imageIndex);
public static extern Boolean SetupDiGetClassImageList(out SP_CLASSIMAGELIST_DATA ClassImageListData);
public static extern bool SetupDiDestroyClassImageList (ref SP_CLASSIMAGELIST_DATA classImageListData);
public static extern bool SetupDiGetClassImageIndex (ref SP_CLASSIMAGELIST_DATA classImageListData, ref Guid classGuid, out int imageIndex);
/// <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 extern Boolean SetupDiGetClassImageList(out SP_CLASSIMAGELIST_DATA ClassImageListData);
