庆祝老婆生日，发布《C#枚举硬件设备（升级版）》源码
先取设备类型：
/// <summary> /// 设备类型 /// </summary> class DeviceClasses { public static Guid ClassesGuid; public const int MAX_SIZE_DEVICE_DESCRIPTION = 1000; public const int CR_SUCCESS = 0x00000000; public const int CR_NO_SUCH_VALUE = 0x00000025; public const int CR_INVALID_DATA = 0x0000001F; private const int DIGCF_PRESENT = 0x00000002; private const int DIOCR_INSTALLER = 0x00000001; private const int MAXIMUM_ALLOWED = 0x02000000; public const int DMI_MASK = 0x00000001; public const int DMI_BKCOLOR = 0x00000002; public const int DMI_USERECT = 0x00000004; [StructLayout(LayoutKind.Sequential)] class SP_DEVINFO_DATA { public int cbSize; public Guid ClassGuid; public int DevInst; public ulong Reserved; } [DllImport("cfgmgr32.dll")] private static extern UInt32 CM_Enumerate_Classes(UInt32 ClassIndex, ref Guid ClassGuid, UInt32 Params); [DllImport("setupapi.dll")] private static extern Boolean SetupDiClassNameFromGuidA(ref Guid ClassGuid, StringBuilder ClassName, UInt32 ClassNameSize, ref UInt32 RequiredSize); [DllImport("setupapi.dll")] private static extern IntPtr SetupDiGetClassDevsA(ref Guid ClassGuid, UInt32 Enumerator, IntPtr hwndParent, UInt32 Flags); [DllImport("setupapi.dll")] private static extern Boolean SetupDiDestroyDeviceInfoList(IntPtr DeviceInfoSet); [DllImport("setupapi.dll")] private static extern IntPtr SetupDiOpenClassRegKeyExA(ref Guid ClassGuid, UInt32 samDesired, int Flags, IntPtr MachineName, UInt32 Reserved); [DllImport("setupapi.dll")] private static extern Boolean SetupDiEnumDeviceInfo(IntPtr DeviceInfoSet, UInt32 MemberIndex, SP_DEVINFO_DATA DeviceInfoData); [DllImport("advapi32.dll")] private static extern UInt32 RegQueryValueA(IntPtr KeyClass, UInt32 SubKey, StringBuilder ClassDescription, ref UInt32 sizeB); /// <summary> /// 设备类型图标信息 /// </summary> [StructLayout(LayoutKind.Sequential)] public class SP_CLASSIMAGELIST_DATA { public int cbSize; public ImageList ImageList; public ulong Reserved; } public struct RECT { long left; long top; long right; long bottom; } /// <summary> /// 载入图片 /// </summary> /// <param name="hInstance"></param> /// <param name="Reserved"></param> /// <returns></returns> [DllImport("user32.dll")] public static extern int LoadBitmapW(int hInstance, ulong Reserved); /// <summary> /// 获取图标 /// </summary> /// <param name="ClassImageListData"></param> /// <returns></returns> [DllImport("setupapi.dll")] public static extern Boolean SetupDiGetClassImageList(out SP_CLASSIMAGELIST_DATA ClassImageListData); [DllImport("setupapi.dll")] public static extern int SetupDiDrawMiniIcon(Graphics hdc, RECT rc, int MiniIconIndex, int Flags); [DllImport("setupapi.dll")] public static extern bool SetupDiGetClassBitmapIndex(Guid ClassGuid, out int MiniIconIndex); [DllImport("setupapi.dll")] public static extern int SetupDiLoadClassIcon(ref Guid classGuid, out IntPtr hIcon, out int index); /// <summary> /// 枚举设备类型 /// </summary> /// <param name="ClassIndex"></param> /// <param name="ClassName"></param> /// <param name="ClassDescription"></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; } }
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为了 可用分 努力回帖!
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生日快乐，迟来的祝福。代码收藏。
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