DOCUMENT:Q216587 22-MAR-2000 [foxpro] TITLE :BUG: Previewing Report Writer Causes Memory Leak PRODUCT :Microsoft FoxPro PROD/VER:WINDOWS:5.0,5.0a,6.0 OPER/SYS: KEYWORDS:kbReportWriter kbvfp500aBUG kbvfp600bug kbVS600sp3 kbGrpDSFox ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Visual FoxPro for Windows, versions 5.0, 5.0a, 6.0 ------------------------------------------------------------------------------- SYMPTOMS ======== Issuing a REPORT FORM PREVIEW with the Status Bar set ON causes Visual FoxPro to leak one memory handle each time you close the Preview window. RESOLUTION ========== Issue a SET STATUS BAR OFF before previewing the report. STATUS ====== Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. The Visual Studio 6.0 Service Pack 3 readme erroneously lists this bug as being fixed. Service Pack 3 did not fix this bug. MORE INFORMATION ================ Steps to Reproduce Behavior --------------------------- 1. Create a report, called mytest, containing a label in the Detail line saying "Test." (This is not a field from a table.) 2. Open the Employee table and place the following code in a program and run it: SET STATUS BAR ON FOR i=1 to 10 ? SYS(1011) REPORT FORM mytest.frx PREVIEW NEXT 3. Run the program. 4. When the Preview window appears, close it. As the code runs, the notice that the number of memory handles increases by one after the first few iterations of the For.. Next loop. The problem occurs regardless of whether you close the window using the Close button on the toolbar or the Close box of the Preview form window. The SYS(1011) function is used to determine how many memory handles are being used up by a process within FoxPro. This is an undocumented SYS function. Additional query words: KBDSE ====================================================================== Keywords : kbReportWriter kbvfp500aBUG kbvfp600bug kbVS600sp3 kbGrpDSFox Technology : kbVFPsearch kbAudDeveloper kbVFP500 kbVFP600 kbVFP500a Version : WINDOWS:5.0,5.0a,6.0 Issue type : kbbug Solution Type : kbpending ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2000.