To use any of the field types, you must #include the header file that enables the use of that field type. The field type header files contain all the function prototypes and declarations needed to enter data of that type into a field on a data form. Table 7.1 lists the header file that you must #include to use each field type.
Designer: If you generate your main program from within the Designer, the necessary header files are included automatically.
Code: You are responsible for including the necessary header files in your code.
