Ingres 12.0 | Modifying Vision Code

Forms-Based Application Development Tools User Guide > Part 2: Vision > Modifying Vision Code

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Modifying Vision Code

Summary of Methods to Modify Code

Writing Escape Code

Modifying the Template Files

Including Source Code Processing Commands

Editing the Source Code to Create a Custom Frame

Editing Help Files

Vision creates the 4GL source code and forms for the Vision frames in your application. As you build your application, you can make changes through the Visual Query Editor and the Application Flow Diagram. Vision regenerates the code to incorporate these changes. However, sometimes the code generated by Vision does not provide the desired behavior. This chapter discusses how to add to or override the code generated by Vision through:

• Writing escape code

• Modifying the template files

• Including source code processing commands

• Editing the source code to create a Custom frame

• Editing help files

Note: If you edit the source code, you lose the advantages of using the Vision code generator. Therefore, we recommend that you try one of the other methods before editing the source code.

The following section summarizes the first four methods. The sections after that discuss all five methods in detail.

Last modified date: 08/28/2024