DOCUMENT:Q161900 26-AUG-1999 [foxpro] TITLE :FIX: Clicking from ListBox on Form to Command Window Gives GPF PRODUCT :Microsoft FoxPro PROD/VER:5.0 OPER/SYS: KEYWORDS:kberrmsg kbprogramming kbvfp kbvfp500aFIX kbvfp500bugkbbuglist kbfixlist ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Visual FoxPro for Windows, version 5.0 ------------------------------------------------------------------------------- SYMPTOMS ======== Repetitive clicking between a multi-line Editbox control on a form, where the Editbox contains many rows of data, and the Command window results in an operating system-level error. A dialog box appears that states the following: This program has performed an illegal operation and will be shut down. STATUS ====== Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article. fix MORE INFORMATION ================ Steps to Reproduce Behavior --------------------------- 1. Copy and paste the following code into a program named Test.prg in Microsoft Visual FoxPro version 5.0 running on Windows 95: ************************************************** *-- Program: test.prg *-- Code to illustrate page fault in *-- Visual FoxPro for Windows 5.0 PUBLIC oForm oForm = CREATEOBJECT("testform") oForm.Show ************************************************** *-- Form: testform *-- ParentClass: form *-- BaseClass: form * DEFINE CLASS testform AS FORM Top = 0 Left = 0 DoCreate = .T. Caption = "Testform Form" Name = "testform" ADD OBJECT edit1 AS editbox WITH ; Height = 217, ; Left = 12, ; Top = 12, ; Width = 121, ; Name = "Edit1" PROCEDURE Click KEYBOARD REPLICATE("a"+CHR(13), 60 ) ENDPROC ENDDEFINE * *-- EndDefine: testform ************************************************** 2. Run the program by issuing the following command in the Command window: DO TEST.PRG 3. With the mouse, click four or five times in the gray area of the form. 4. Click in the Command window. Additional query words: ====================================================================== Keywords : kberrmsg kbprogramming kbvfp kbvfp500aFIX kbvfp500bug kbbuglist kbfixlist Technology : kbVFPsearch kbAudDeveloper kbVFP500 Version : 5.0 Issue type : kbbug Solution Type : kbfix ============================================================================= 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 1999.