注册表处理之注册表结构存储

注册表是一个树形结构，树形结构可根据递归来存储

实现步骤：

1. 首先自定义存储注册表信息的结构体

2.构造函数GetRegValueStruct根据主键和子键存储键项值

3.构造函数GetRegStruct根据主键和子键存储整个注册表结构

具体实现如下：

 

 

1. 首先自定义存储注册表信息的结构体

自定义存储结构体typedef struct __REG_VALUE_CTRL //存储键值的结构体{char szValueName[MAX_PATH];//键值名char szValue[MAX_PATH] ;//键值内容 __REG_VALUE_CTRL *pNext;} REG_VALUE_CTRL, *PREG_VALUE_CTRL;typedef struct __REG_INFO_CTRL //存储完整的注册表项结构体数据{// 注册表项键值结构体char szKeyName[MAX_PATH];//键名PREG_VALUE_CTRL pRegValueCtrl ;// 注册表项子项结构体__REG_INFO_CTRL *pSubKeyCtrl[MAX_SUB] ; }REG_INFO_CTRL, *PREG_INFO_CTRL; 

2.构造函数GetRegValueStruct根据主键和子键存储键项值

//根据主键和子键存储键项值PREG_VALUE_CTRL GetRegValueStruct(HKEY hMainKey, TCHAR SubKey[MAX_PATH]){PREG_VALUE_CTRL p,last,head;TCHAR temp[MAX_PATH]; HKEY hKey = NULL; TCHAR str[MAX_PATH] = {0};//存放读取出来的值DWORD num = sizeof(str),index = 0,rc; rc = RegOpenKeyEx(hMainKey,SubKey,0,KEY_ALL_ACCESS,&hKey); if(rc == ERROR_SUCCESS) { int n=0;head=last=NULL;p = (PREG_VALUE_CTRL)malloc(REGVALUELEN);//memset(str,'/0',sizeof(TCHAR)*260);memset(str,0,sizeof(TCHAR)*260);//存值while(RegEnumValue(hKey,index,str,&num,NULL,NULL,NULL,NULL)==0 ) {//首先遍历值，进行处理//printf("/t%s/n",str); //ZeroMemory(&str[strlen(str)+1],MAX_PATH-strlen(str)-1);char *name = wide2short(str);strcpy(p->szValueName,name);//读键值DWORD keyType;DWORD dwLength = 20;TCHAR buf[260];RegQueryValueEx(hKey,str,0,&keyType,(BYTE *)buf,&dwLength);char value[MAX_PATH] /*= {0}*/;memset(value, 0, MAX_PATH);sprintf(value, "%s", wide2short(buf));strcpy(p->szValue,value);index++; num = MAX_PATH; p->pNext=NULL;++n;if(n==1)head=p;elselast->pNext=p;last=p;p = (PREG_VALUE_CTRL)malloc(REGVALUELEN);} free(p);return head;}elsereturn NULL;} 

3.构造函数GetRegStruct根据主键和子键存储整个注册表结构

GetRegStruct根据主键和子键存储整个注册表结构void GetRegStruct(HKEY hMainKey, TCHAR SubKey[MAX_PATH], PREG_INFO_CTRL * psubkey_head){PREG_INFO_CTRL subkey_p, subkey_last;TCHAR temp[MAX_PATH]; HKEY hKey = NULL; TCHAR str[MAX_PATH];//存放读取出来的值DWORD num = sizeof(str),index = 0, initial_index = 0,rc; rc = RegOpenKeyEx(hMainKey,SubKey,0,KEY_ALL_ACCESS,&hKey); if(rc == ERROR_SUCCESS) { subkey_p = (PREG_INFO_CTRL)malloc(REGINFOSTRUCTLEN);strcpy(subkey_p->szKeyName,wide2short(SubKey));subkey_p->pRegValueCtrl = GetRegValueStruct(hMainKey, SubKey);//键值结构体 //初始化子键值for(int j = 0; j<MAX_SUB; j++){subkey_p->pSubKeyCtrl[j] = NULL;}while(RegEnumKeyEx(hKey,index,str,&num,NULL,NULL,NULL,NULL) == ERROR_SUCCESS) { //遍历子项后进行递归wcscpy(temp,SubKey);//这样做是必须的，不然通常情况下都会出现异常wcscat(temp,L"//"); wcscat(temp,str); GetRegStruct(hMainKey, temp,&(subkey_p->pSubKeyCtrl[index]));//递归 index++; num = MAX_PATH; } *psubkey_head = subkey_p;}else*psubkey_head = NULL;}