Building an external visual user object – PB Docs 2021

To build an external visual user object

1. In the Properties view, click the Browse button next to the
   LibraryName box.

2. In the Select Custom Control DLL dialog box, select the DLL
   that defines the user object and click OK.

3. In the Properties view, enter the following information, as
   necessary, and click OK:

   • The class name registered in the DLL

     Information about the class name is usually provided by
     the vendor of the purchased DLL.

   • Text in the Text box

     This will be displayed only if the object has a text
     style property.

   • Display properties (border and scroll bars)

   • Decimal values for the style bits associated with the
     class

     Information about style bits is usually provided by the
     vendor of the purchased DLL. PowerBuilder will OR these values
     with the values selected in the display properties for the
     control.

4. Declare any functions, structures, or variables you need to
   declare for the user object.

   You can declare functions, structures, and variables for the
   user object in the Script view. Information about functions is
   usually provided by the vendor of the purchased DLL.

5. Declare any needed events for the user object.

   For information about user events, see Communicating between a window and a user
   object.

6. In the Script view, create and compile the scripts for the
   user object.

   For more information on events associated with external
   visual user objects, see Events in user
   objects.

7. Save the user object.

   See Saving a user
   object.