PRB: Cannot Call Suspend with the On Shutdown Command

Last reviewed: December 16, 1996
Article ID: Q160919
The information in this article applies to:
  • Microsoft Visual FoxPro for Windows, versions 3.0, 3.0b, 5.0

SYMPTOMS

When you type the Suspend command in an On Shutdown procedure, the following error message appears:

   CANCEL or SUSPEND is not allowed.

In order to quit Visual FoxPro, the On Shutdown command must be cleared by typing the "ON SHUTDOWN" (without quotation marks) command in the Command window.

CAUSE

This behavior is by design.

RESOLUTION

Place the Suspend command in an event that occurs before Visual FoxPro actually begins to shutdown, as in the Destroy event of a form.

MORE INFORMATION

When you exit Visual FoxPro, you trigger the On Shutdown command. Once Visual FoxPro begins removing itself from memory, you cannot type the Suspend command.

Steps to Reproduce Behavior

  1. Create a program called Test.prg.

  2. Type the following two lines of code:

          ON SHUTDOWN SUSPEND
          QUIT
    

  3. Run the program and the error message appears.

  4. Type the following command in the Command window and press Enter:

          ON SHUTDOWN
    


KBCategory: kbprg kbprb
KBSubcategory: FxprgGeneral
Additional reference words: 3.00 3.00b 5.00 VFoxWin kbdsd



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Last reviewed: December 16, 1996
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