Code

FdoIExpressionCapabilities * expressionCapabilities;

FdoInt32 numExpressionTypes = 0;

        // this is an enumerated type
      

FdoExpressionType * expressionTypes;

FdoInt32 numFunctionDefinitions = 0;

FdoFunctionDefinitionCollection * functions;

FdoFunctionDefinition * functionDefinition;

FdoString * functionName;

FdoString * functionDescription;

FdoInt32 numArgumentDefinitions = 0;

FdoReadOnlyArgumentDefinitionCollection * arguments;

FdoArgumentDefinition * argumentDefinition;

FdoString * argumentName;

FdoString * argumentDescription;

FdoDataType argumentType;

expressionCapabilities = connection->GetExpressionCapabilities();

        // this returns a list of expression types
      

expressionTypes = expressionCapabilities->GetExpressionTypes();

        // loop through the expression Types
      

functions = expressionCapabilities->GetFunctions();

numFunctionDefinitions = functions->GetCount();

for (int i = 0; i < numFunctionDefinitions; i++) {

  functionDefinition = functions->GetItem(i);

  functionName = functionDefinition->GetName();

  functionDescription = functionDefinition->GetDescription();

  arguments = functionDefinition->GetArguments();

  numArgumentDefinitions = arguments->GetCount();

  for ( int j = 0; j < numArgumentDefinitions; j++) {

    argumentDefinition = arguments->GetItem(j);

    argumentName = argumentDefinition->GetName();

    argumentDescription = argumentDefinition->GetDescription();

    argumentType = argumentDefinition->GetDataType();

  }

}