PRB: Loops of @..SAY <General field> Causes GPF

The information in this article applies to:

• Microsoft Visual FoxPro for Windows, versions 3.0, 3.0b, 5.0

SYMPTOMS

WARNING: The information in this article has not been confirmed or tested by Microsoft. Some or all of the information in this article has been taken from unconfirmed customer reports. ANY USE BY YOU OF THE INFORMATION PROVIDED IN THIS ARTICLE IS AT YOUR OWN RISK. Microsoft provides this information "as is" without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability and/or fitness for a particular purpose.

Looping @...SAY <general field contain embedded pictures> might cause a General Protection Fault (GPF) in Windows 3.1 and Windows for Workgroups, and it might trigger one of the following error messages:

   VFP caused an invalid page fault in module kernal32.dll at <address>"
   under Windows 95

   -or-

   Application Error : Access violation : <address> under Winnt3.51

WORKAROUND

Instead of displaying a Picture from the general field, issue the following command:

   @...SAY <Picture File name> Bitmap

STATUS

Microsoft is researching this behavior and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

Steps to Reproduce Behavior

1. Create a Table (name it Test) with a general field (name it Pic).

2. Embed a .bmp file into the general field Pic.

3. Execute the program as follows:

         CLOSE data
         SELECT 0
         USE Test
         DO while .t.
         @ 1,1 SAY Pic
         ENDDO