VS2017简单的HID设备枚举工程及源码

#include <windows.h> #include <stdio.h> #include <winnt.h> #include <errno.h> #include <time.h> #include <string.h> #include <hidsdi.h> #include <setupapi.h> /*********************************************************************************************************************/ // 模块宏定义 /*********************************************************************************************************************/ #define OVERLAP_MODE 0 /* 是否要启用重叠异步模式打开HID设备文件 */ /*********************************************************************************************************************/ // 函数功能：主函数 - 用来列举出系统中所有可用的HID设备信息，并尝试打开他们获取其属性(有可能会打开失败) // 输入参数： // 输出参数： // 返回参数： /*********************************************************************************************************************/ int main(int argc, char** argv) { int deviceNo; bool result; HANDLE hidHandle; GUID hidGuid; ULONG requiredLength; SP_DEVICE_INTERFACE_DATA devInfoData; deviceNo = 0; hidHandle = NULL; devInfoData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); printf("Begin to list all HID device...\r\n\r\n"); /* HidD_GetHidGuid routine returns the device interfaceGUID for HIDClass devices - from MS */ HidD_GetHidGuid(&hidGuid); printf("Get HID Guid: Data1[0x%X]. Data2[0x%X]. Data3[0x%X]. Data4[0x%X%X%X%X%X%X%X%X]\r\n", hidGuid.Data1, hidGuid.Data2, hidGuid.Data3, hidGuid.Data4[0], hidGuid.Data4[1], hidGuid.Data4[2], hidGuid.Data4[3], hidGuid.Data4[4], hidGuid.Data4[5], hidGuid.Data4[6], hidGuid.Data4[7]); /* SetupDiGetClassDevs返回一个包含本机上所有被请求的设备信息的设备信息集句柄 */ /* SetupDiGetClassDevs function returns a handle to a device information set that contains requested device information elements for a local computer - from MS */ HDEVINFO hDevInfo = SetupDiGetClassDevs(&hidGuid, NULL, NULL, (DIGCF_PRESENT | DIGCF_DEVICEINTERFACE)); if (hDevInfo == INVALID_HANDLE_VALUE) { printf("Fatal Error: SetupDiGetClassDevs Fail!!!\r\n"); return 1; } SetLastError(NO_ERROR); /* 首先清空错误代码，以便于后面的使用 */ while (1) { printf("\r\ntry deviceNo %d.\r\n", deviceNo); /* The SetupDiEnumDeviceInterfaces function enumerates the device interfaces that are contained in a device information set - from MS */ result = SetupDiEnumInterfaceDevice(hDevInfo, 0, &hidGuid, deviceNo, &devInfoData); if ((result == false) || (GetLastError() == ERROR_NO_MORE_ITEMS)) { /* 出现ERROR_NO_MORE_ITEMS错误表示已经找完了所有的设备 */ printf("No More Item Left!!!\r\n\r\n"); break; } else { printf("----Get devInfoData: cbSize[%d]. Flags[0x%.2X]. InterfaceClassGuid([0x%X] [0x%X] [0x%X] [0x%X%X%X%X%X%X%X%X])\r\n", devInfoData.cbSize, devInfoData.Flags, devInfoData.InterfaceClassGuid.Data1, devInfoData.InterfaceClassGuid.Data2, devInfoData.InterfaceClassGuid.Data3, devInfoData.InterfaceClassGuid.Data4[0], devInfoData.InterfaceClassGuid.Data4[1], devInfoData.InterfaceClassGuid.Data4[2], devInfoData.InterfaceClassGuid.Data4[3], devInfoData.InterfaceClassGuid.Data4[4], devInfoData.InterfaceClassGuid.Data4[5], devInfoData.InterfaceClassGuid.Data4[6], devInfoData.InterfaceClassGuid.Data4[7]); } /* The SetupDiGetDeviceInterfaceDetail function returns details about a device interface - From MS */ requiredLength = 0; /* 先将变量置零，以便于下一步进行获取 */ SetupDiGetInterfaceDeviceDetail(hDevInfo, &devInfoData, NULL, 0, &requiredLength, NULL); /* 第一次调用，为了获取requiredLength */ PSP_INTERFACE_DEVICE_DETAIL_DATA devDetail = (SP_INTERFACE_DEVICE_DETAIL_DATA *)malloc(requiredLength); /* 根据获取到的长度申请动态内存 */ devDetail->cbSize = sizeof(SP_INTERFACE_DEVICE_DETAIL_DATA); /* 先对变量进行部分初始化 */ result = SetupDiGetInterfaceDeviceDetail(hDevInfo, &devInfoData, devDetail, requiredLength, NULL, NULL); /* 第二次调用，为了获取devDetail */ if (result == false) { printf("Fatal Error: SetupDiGetInterfaceDeviceDetail fail!!!\r\n"); free(devDetail); SetupDiDestroyDeviceInfoList(hDevInfo); return 1; } else { printf("----Get devDetail: cbSize[%d] DevicePath[%s]\r\n", devDetail->cbSize, devDetail->DevicePath); } if (OVERLAP_MODE == 1) { hidHandle = CreateFile(devDetail->DevicePath, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL); } else { hidHandle = CreateFile(devDetail->DevicePath, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL); } free(devDetail); if (hidHandle == INVALID_HANDLE_VALUE) { /* 系统会将部分HID设备设置成独占模式 */ printf("CreateFile fail!!! dev maybe in_use. continue to try next one...\r\n"); ++deviceNo; continue; } _HIDD_ATTRIBUTES hidAttributes; result = HidD_GetAttributes(hidHandle, &hidAttributes); /* 获取HID设备的属性 */ if (result == false) { printf("Fatal Error: HidD_GetAttributes fail!!!\r\n"); CloseHandle(hidHandle); SetupDiDestroyDeviceInfoList(hDevInfo); return 1; } else { printf("----Get hidAttributes: Size[%d]. VersionNumber[%d]. ProductID[0x%X]. VendorID[0x%X]\r\n", hidAttributes.Size, hidAttributes.VersionNumber, hidAttributes.ProductID, hidAttributes.VendorID); } CloseHandle(hidHandle); ++deviceNo; } /* The SetupDiDestroyDeviceInfoList function deletes a device information set and frees all associated memory - From MS */ SetupDiDestroyDeviceInfoList(hDevInfo); printf("Search is Over!!! find %d HID_Dev altogether in your computer...\r\n\r\n", deviceNo); printf("任务完成，按任意键退出...\r\n"); getchar(); getchar(); return 0; }