Library Code

At the Library page there are some ready-made Functions (UDF), Classes and Constants that serve a double purpose. First, most of these can be used immediately and be very useful and second, can be seen as examples in various aspects in using the CalcIt language. Classes that are wrappers of existing APIs may are not full implementations (at the moment) and only of the most important of their features.

Generally I will try to document the Library code with comments inside the code itself. Here I will present some Classes that can be used immediately with great value.

• ODBC. Wrapper of the ODBC API. Can be used to access any database that has an ODBC driver.
• CQuery. Uses ODBC in a more simplified and user friendly interface. Executes prepared statements. Many CQuery instances can be created in a code with only one Database connection.
• C1Query. Inherits from CQuery and is simpler to use in a code which uses only one prepared SQL statement
• CODBCForm & CODBCFormGrid. These two Classes produce a Form where is simple and easy to execute SQL statements against an ODBC database and see immediately the returned results. The first Class uses a ctrMEMO control as output media and the second uses ctrGRID.
• CSocketInit, CSocket, C1Socket. For sockets programming. Do test and checks in a TCP/IP network.
• CAssoc. Implements associative arrays using red-black tree algorithm. This kind of arrays it uses a key of any numeric or alphanumeric value to access the array element. This is in contrast of Normal Calcit arrays that they use a numeric index which represents the absolute position of the element in the array.
• CArray. Implements 2D array.
• CDiff. Merges two text files
• CMemAlloc. Allocates memory using Win32 API. No need for explicit freeing of the memory.
• CFileIO. File IO using the Win32API.
• CTextIO. Reading and Writing text files in line to line basis.
• CInternet. Accessing the Internet through HTTP and FTP protocols. Create download scripts. At times more powerful and useful than a Download Manager.
• CConfig. Save the size and position of your Forms so the next time you rerun a CalcIt Application this will appear exactly in the place left the last time.