C++ 读写注册表
最近做项目的原因，要用到C++操作注册表的程序，结果找网上的博客，发现没有一个对的，路径好多的符号写反了。。。于是把自己能用的代码放上来。
代码：
1 #include <iostream> 2 #include <algorithm> 3 #include <cmath> 4 #include <vector> 5 #include <string> 6 #include <cstring> 7 #include <atlbase.h> 8 #include <Windows.h> 9 #pragma warning(disable:4996) 10 using namespace std; 11 12 void read_dword()//读取操作表,其类型为DWORD 13 { 14 HKEY hKEY;//定义有关的键，在查询结束时关闭 15 //打开与路径data_Set相关的hKEY 16 17 LPCTSTR data_set = _T("Software\\Chicony\\Lenovo1"); 18 19 //访问注册表，hKEY则保存此函数所打开的键的句柄 20 if (ERROR_SUCCESS == ::RegOpenKeyEx(HKEY_CURRENT_USER, data_set, 0, KEY_READ, &hKEY)) 21 { 22 DWORD dwValue;//长整型数据，如果是字符串数据用char数组 23 DWORD dwSize = sizeof(DWORD); 24 DWORD dwType = REG_DWORD; 25 26 if (::RegQueryValueEx(hKEY, _T("123"), 0, &dwType, (LPBYTE)&dwValue, &dwSize) != ERROR_SUCCESS) 27 { 28 cout << "错误：无法查询有关的注册表信息" << endl; 29 } 30 31 cout << dwValue << endl; 32 } 33 ::RegCloseKey(hKEY); 34 } 35 36 void read_reg_sz()//读取操作表,其类型为REG_SZ 37 { 38 HKEY hkey; 39 LPCTSTR data_set = _T("Software\\Chicony\\Lenovo1"); 40 41 if (ERROR_SUCCESS == ::RegOpenKeyEx(HKEY_CURRENT_USER, data_set, 0, KEY_READ, &hkey)) 42 { 43 char dwValue[256]; 44 DWORD dwSzType = REG_SZ; 45 DWORD dwSize = sizeof(dwValue); 46 if (::RegQueryValueEx(hkey, _T("wangchong"), 0, &dwSzType, (LPBYTE)&dwValue, &dwSize) != ERROR_SUCCESS) 47 { 48 cout << "无法查询有关的注册表信息" << endl; 49 } 50 cout << dwValue<< endl; 51 } 52 ::RegCloseKey(hkey); 53 } 54 55 void write_dword()//在\Software\\Chicony\\Lenovo1文件夹下写入一个test111的子键，设置其名称为Name，其值为6 56 { 57 HKEY hkey;//定义有关的hkey，在查询结束时要关闭 58 HKEY hTempKey; 59 60 DWORD dwValue = 6; 61 DWORD dwSize = sizeof(DWORD); 62 DWORD dwType = REG_DWORD; 63 64 LPCTSTR data_set= _T("Software\\Chicony\\Lenovo1"); 65 if (ERROR_SUCCESS == RegOpenKeyEx(HKEY_CURRENT_USER, data_set, 0, KEY_SET_VALUE, &hkey)) 66 { 67 if (ERROR_SUCCESS == ::RegCreateKey(hkey, _T("test111"), &hTempKey)) 68 { 69 if (ERROR_SUCCESS != ::RegSetValueEx(hTempKey, _T("Name"), 0, REG_DWORD, (CONST BYTE*)&dwValue, sizeof(DWORD))) 70 { 71 cout <<"写入注册表失败"<< endl; 72 } 73 } 74 } 75 ::RegCloseKey(hkey); 76 } 77 78 void write_reg_sz() 79 { 80 HKEY hkey; 81 HKEY hTempKey; 82 char m_name_set[256]="China"; 83 84 DWORD len = strlen(m_name_set) + 1; 85 LPCTSTR data_set = _T("Software\\Chicony\\Lenovo1"); 86 if (ERROR_SUCCESS == ::RegOpenKeyEx(HKEY_CURRENT_USER, data_set, 0, KEY_SET_VALUE, &hkey)) 87 { 88 if (ERROR_SUCCESS == ::RegCreateKey(hkey,_T("test1112"),&hTempKey)) 89 { 90 if (ERROR_SUCCESS!=::RegSetValueEx(hTempKey,_T("Name"),0,REG_SZ,(const BYTE*)m_name_set,len)) 91 { 92 cout << "写入错误" << endl; 93 } 94 } 95 } 96 ::RegCloseKey(hkey); 97 } 98 99 void write_binary() 100 { 101 HKEY hkey; 102 HKEY hTempKey; 103 BYTE m_name[10]; 104 memset(m_name, 0, sizeof(m_name)); 105 m_name[0] = 0xff; 106 m_name[1] = 0xac; 107 m_name[2] = 0x05; 108 m_name[3] = 0x4e; 109 110 LPCTSTR data_set= _T("Software\\Chicony\\Lenovo1"); 111 if (ERROR_SUCCESS == ::RegOpenKeyEx(HKEY_CURRENT_USER, data_set, 0, KEY_SET_VALUE, &hkey)) 112 { 113 if (ERROR_SUCCESS==::RegCreateKey(hkey,_T("test111"),&hTempKey)) 114 { 115 if (ERROR_SUCCESS != ::RegSetValueEx(hTempKey, _T("Name"), 0, REG_BINARY, (unsigned char *)m_name, 5)) 116 { 117 cout << "写入错误" << endl; 118 } 119 } 120 } 121 ::RegCloseKey(hkey); 122 } 123 124 void delete_value() 125 { 126 HKEY hkey; 127 LPCTSTR data_set = _T("Software\\Chicony\\Lenovo1\\test1112"); 128 129 if (ERROR_SUCCESS == ::RegOpenKeyEx(HKEY_CURRENT_USER, data_set, 0, KEY_SET_VALUE, &hkey)) 130 { 131 if (ERROR_SUCCESS != ::RegDeleteValue(hkey, _T("Name"))) 132 { 133 cout << "删除错误" << endl; 134 } 135 } 136 ::RegCloseKey(hkey); 137 } 138 139 void delete_key() 140 { 141 HKEY hkey; 142 LPCTSTR data_set = _T("Software\\Chicony\\Lenovo1"); 143 144 if (ERROR_SUCCESS == ::RegOpenKeyEx(HKEY_CURRENT_USER, data_set, 0, KEY_SET_VALUE, &hkey)) 145 { 146 if (ERROR_SUCCESS != ::RegDeleteKey(hkey,"test1112")) 147 { 148 cout << "删除错误" << endl; 149 } 150 } 151 ::RegCloseKey(hkey); 152 } 153 154 int main() 155 { 156 read_dword(); 157 read_reg_sz(); 158 write_reg_sz(); 159 write_binary(); 160 delete_value(); 161 delete_key(); 162 system("pause"); 163 return 0; 164 }
效果：
