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Creating an Event Procedure
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 Creating an Event Procedure
 
 ■ The code you write to respond to form or control events is called an
   "event procedure." Each object (form or control) has a set of predefined
   events that it can recognize. You write event procedures only for those
   events for which you want a form or control to respond.
   See: Controls Summary  Object Events Summary
 
 ■ Form modules are private: event and general procedures contained within
   cannot be called from external modules or procedures. In addition, form
   modules do not allow executable code at the model level. Code modules, on
   the other hand, are public: general procedures contained within can be
   called from other modules or procedures. Executable code is allowed at
   the module level of code modules.
 
 ■ To define an event procedure for a form or control:
 
   1. From the Edit menu, choose Event Procedures
 
   2. Select the target form or control
 
   3. Select the event you wish to write code for
 
   4. Choose Edit in Active or Edit in New
 
   5. Enter the code you want in the template provided
      Follow Basic guidelines for entering and editing code and declarations.
      See: Guidelines for Entering and Editing Code
 
   6. Repeat steps 2 to 4 as necessary to write additional event procedures
 
 ■ Use this syntax to write an event procedure:
 
         SUB objectname_eventname (parameters)
              local variable and constant definitions
              statements
         END SUB
 
 ■ Instead of using the template provided by Visual Basic, you can also
   create an event procedure by choosing New Sub from the Edit menu.
 
 ■ If you change the CtlName of a control after writing a procedure for it,
   you must also change the name of the procedure to match the name of the
   control. Otherwise, Visual Basic won't be able to match the control to
   the procedure.
 
 See: Creating a General Procedure
      Tutorial: Writing Event-Driven Programs