Connect to CDB

See also

Visual Basic for Applications - Examples

• Read the node properties

• Single span girder

Problem Description

To connect to the CDB, the project must be configured (see Configure project). The example below shows how to connect to the CDB.

Problem Solution

An example can be found by following:

C:\<sofistik_installation>\2023\SOFiSTiK 2023\interfaces\examples\c++\connect_to_cdb

The folder contains:

• connect_to_cdb.sln (folder)

• connect_to_cdb_vcxproj

• main.cpp

Open the Visual Studio Solution .sln and change the fileName path in the main.cpp

char* fileName = "S:\\test\\cdbPath.cdb";

C++ - Connect to CDB

int main()
{
   // In this example debug 64bit dlls are used (Visual Studio Platform 64bit)

   // Connect to CDB
   // int sof_cdb_init  ( char* FileName, int Index);

   /*
   Index = 0     initialise CDBASE and open scratch data base only
   Index > 0     open an existing data base with exactly tis index
                        (STATUS=UNKNOWN) = somehow obsolete call, use 99!
   Index = 99    test if NAME is a valid database and open the base
                        if possible. Return with the assigned index.
                        If the file does not exist, it will be created.
   Index = 97    open the database via pvm
                        Return with the assigned index.
   Index = 96    open a scratch database, filename is the path to
                        use or NULL.
   Index = 95    open in read-only mode
   Index = 94    create a new data base (STATUS=NEW)
   */
   int index = 99;
   char* fileName = "S:\\test\\cdbPath.cdb";
   int ie = sof_cdb_init(fileName, index);
   if (ie < 0)
   {
      cout << "ERROR: Index= " << ie << " < 0 - see clib1.h for meaning of error codes" << endl;
      cout << "Press any <key> to close the program";
      system("pause");
      return(0);
   }
   else if(ie == 0)
   {
      cout << "ERROR: Index= " << ie << " - The File is not a database" << endl;
      cout << "Press any <key> to close the program";
      system("pause");
      return(0);
   }

   // Get Status
   // int sof_cdb_status  (int ie);
   cout << "The CDB Status: " << sof_cdb_status(ie) << endl;

   // Close the CDB
   // int sof_cdb_close  (int ie);
   sof_cdb_close(0);
   cout << "The CDB Status after closing: " << sof_cdb_status(ie) << endl;

   system("pause");
   return 0;
}