Working with Procedures and Functions

Visual FoxPro includes a wide range of native functions that you can use to perform data manipulation or other operations. Functions in Visual FoxPro perform operations on data and return results with a specific type. You can also create procedures and functions to store code that performs frequently or commonly used routines in your programs.

In This Section

• User-Defined Procedures and Functions
  Introduces procedures and functions that you can define and create in Visual FoxPro.

• Parameters in Procedures and Functions
  Describes how data passes to procedures and functions for processing.

• How to: Create Procedures and Functions
  Explains how to create procedures and functions.

• How to: Call Procedures and Functions
  Explains how to call native functions as well as user-defined functions and procedures.

• Verifying Data Passed to Procedures and Functions
  Describes ways to verify that correct data passes to procedures and functions.

• Returning Data from Procedures and Functions
  Describes how to return data from procedures and functions.

Reference

• Functions
  Lists functions available in Visual FoxPro.

Related Sections

• Passing Data to Parameters
  Describes how data passes to parameters by reference or by value.

• Working with Programs
  Introduces how to create and work with Visual FoxPro programs.

• Programming in Visual FoxPro
  Describes aspects of programming, such as basic programming concepts, working with programs, object-oriented programming, and optimizing applications, in Visual FoxPro.