PRB: Menu Appears, Then Application Exits to Operating System

• Microsoft Visual FoxPro for Windows, version 3.0
• Microsoft FoxPro for MS-DOS, versions 2.0, 2.5x, 2.6x
• Microsoft FoxPro for Windows, versions 2.5x, 2.6x
• Microsoft FoxPro for Macintosh, versions 2.5x, 2.6a
• Microsoft Visual FoxPro for Macintosh, version 3.0b

SYMPTOMS

The Microsoft FoxPro menu program works in the development version of FoxPro. However, if you are using the distribution version of the files (a stand-alone executable), the menu appears, then the application exits to the main operating system environment, either MS-DOS, Windows or the Macintosh desktop.

CAUSE

When a menu is generated, running the .MPR file does not put you in an event loop or a wait state.

RESOLUTION

Incorporate a Foundation READ command into the application.

NOTE: Although the Foundation READ can be used in Visual FoxPro, the preferred method is to incorporate a READ EVENT.

MORE INFORMATION

Foundation READ

To incorporate a foundation READ command in an application, do the following:

1. In FoxPro 2.x, in the Setup section of the menu or program, include the following code:

         PUBLIC m.xxx
         m.xxx = .F.
   

   In Visual FoxPro, in the Cleanup section of the menu or program, include the following code prior to any other code:

                 READ EVENTS
   
   

2. In FoxPro 2.x, in the Cleanup section of the menu or program, include the following code prior to any other code:

         READ VALID m.xxx
   

3. In FoxPro 2.x, execute the following code when the user chooses the Quit menu option:

         m.xxx = .T.
         CLEAR READ ALL
   

   In Visual FoxPro, execute the following code when the user chooses the Quit menu option:

                 CLEAR EVENTS
   
   

REFERENCES

FoxPro for Windows Distribution Kit "User's Guide," page 12. FoxPro for MS-DOS Distribution Kit "User's Guide," page 10.