Q128728: How Visual FoxPro Organizes and Accesses Wizards
Article: Q128728
Product(s): Microsoft FoxPro
Version(s): WINDOWS:3.0
Operating System(s):
Keyword(s):
Last Modified: 12-FEB-2000
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The information in this article applies to:
- Microsoft Visual FoxPro for Windows, version 3.0
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SUMMARY
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This article describes how Visual FoxPro knows that a Wizards exists and when to
use it.
MORE INFORMATION
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When you install Visual FoxPro, the _Wizard system memory variable is
initialized to point to the application that will function as the main
controller for all the wizards. By default, the variable contains WIZARD.APP,
installed in the main Visual FoxPro directory. This application is activated
each time you choose to run a wizard.
WIZARD.APP uses a registration table named WIZARD.DBF to store Information
regarding the various wizards and to determine which Wizard to run. This table
has the following structure:
Field Field Name Type Width Dec Index Collate Nulls
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1 NAME Character 45 No
2 DESCRIPT Memo 4 No
3 BITMAP Memo 4 No
4 TYPE Character 20 No
5 PROGRAM Memo 4 No
6 CLASSLIB Memo 4 No
7 CLASSNAME Memo 4 No
8 PARMS Memo 4 No
** Total ** 90
Each record in WIZARD.DBF represents a wizard. The contents of the Name field is
used as the text for the Wizard Selection dialog.
The Type field determines the Visual FoxPro File Type that the Wizard is
associated with. For example, if the Type is REPORT, then that Wizard will be
opened whenever you choose to create a new Report. If two or more wizards are of
the same Type, the Wizard Selection dialog is displayed when you choose to run a
wizard. The dialog lists the various wizards for the specific file type.
The contents of the Description field are displayed in the Description box of the
Wizard Selection dialog.
When the user runs a certain wizard, WIZARD.APP runs the program specified in the
Program field of the wizard. If the program is not in the Wizards directory, you
must specify the path. If the Program field is blank, an instance of the class,
as specified by the Classlib and Classname fields, is created.
The Parms field can be used to specify parameters sent to the Wizard when it is
executed. For example, WZREPORT.APP contains the Report, One-To-Many Report, and
Group/total Report Wizards. Therefore, depending on which wizard you select, the
Parms field is used to pass REPORT, 1MANY, or the GROUP parameters respectively
to WZREPORT.APP to determine which specific Report Wizard is to be activated.
Additional query words: VFoxWin
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Keywords :
Technology : kbVFPsearch kbAudDeveloper kbVFP300
Version : WINDOWS:3.0
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