FIX: Calling AINSTANCE in Loop Causes Memory Leak (191671)


The information in this article applies to:

  • Microsoft Visual FoxPro for Windows 5.0
  • Microsoft Visual FoxPro for Windows 5.0a
This article was previously published under Q191671

SYMPTOMS

Repeatedly calling the AINSTANCE function cause a memory leak in Visual FoxPro 5.0x.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. This bug has been corrected in Visual FoxPro 6.0.

MORE INFORMATION

Each iteration of the AINSTANCE() function causes a 276 byte memory leak in user object memory as measured by SYS(1016).

Steps to Reproduce Behavior

Create a program containing the following code and run the program: 
   CLEAR
   SET TALK OFF
   ox=CREATEOBJECT("form")
   ox.ADDOBJECT("command1","commandbutton")

   ox.SHOW

   ACTIVATE  SCREEN
   FOR i=1 TO 100
      =AINSTANCE(ss,"form")
      ? SYS(1016)
   ENDFOR
Modification Type:MajorLast Reviewed:8/24/1999
Keywords:kbbug KB191671
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