C C++编程常用代码块

1.二维动态数组

int **twoDArr = new int*[row];for(int i = 0 ; i < row; i++){twoDArr[i] = new int[len];for(int j = 0; j < len; j++)twoDArr[row][len] = setValue(row, len);}for(int j = 0 ; j < row; j++){delete[] twoDArr[j];twoDArr[j] = NULL;}delete[] twoDArr;twoDArr = NULL;

 

2.设置高权限

void SetPrivileges(){HANDLE hToken = NULL;LUID privNameValue;TOKEN_PRIVILEGES privileges;DWORD dwRet;if (OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken)){if (LookupPrivilegeValue(NULL, SE_DEBUG_NAME, &privNameValue )){privileges.PrivilegeCount = 1;privileges.Privileges[0].Luid = privNameValue;privileges.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;if (!AdjustTokenPrivileges(hToken, false, &privileges, sizeof(privileges), NULL, &dwRet) ||GetLastError() == ERROR_NOT_ALL_ASSIGNED){ShowError(NULL,"Could not set %s privilege",SE_DEBUG_NAME);}}if (LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &privNameValue)){privileges.PrivilegeCount = 1;privileges.Privileges[0].Luid = privNameValue;privileges.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;if (!AdjustTokenPrivileges(hToken, false, &privileges, sizeof(privileges), NULL, &dwRet) || GetLastError() == ERROR_NOT_ALL_ASSIGNED){ShowError(NULL, "Could not set %s privilege",SE_SHUTDOWN_NAME);}}}}

 

3.获得window版本

char* GetWindowsVersion(LPOSVERSIONINFO winVersion){char* pOs = new char[3];winVersion->dwOSVersionInfoSize = sizeof(OSVERSIONINFO);GetVersionEx(winVersion);char buffre[4];if (!winVersion){MessageBox(NULL, "kong", TEXT("S"), MB_OK);}if (winVersion->dwMajorVersion == 4){if (winVersion->dwMinorVersion == 0){if (winVersion->dwPlatformId == VER_PLATFORM_WIN32_WINDOWS) pOs = "95";if (winVersion->dwPlatformId == VER_PLATFORM_WIN32_NT) pOs = "NT";}else if (winVersion->dwMinorVersion == 10) pOs = "98";else if (winVersion->dwMinorVersion == 90) pOs = "ME";}else if (winVersion->dwMajorVersion == 5) {if (winVersion->dwMinorVersion == 0) pOs = "2000";else if (winVersion->dwMinorVersion == 1) pOs = "XP";}return pOs;}