DOCUMENT:Q36917 06-NOV-1999 [win16sdk] TITLE :INFO: DlgDirSelect() Has Undocumented Behavior PRODUCT :Microsoft Windows Software Development Kit PROD/VER:WINDOWS:3.0,3.1 OPER/SYS: KEYWORDS:kb16bitonly kbCtrl kbListBox kbSDKPlatform kbGrpDSUser ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows Software Development Kit (SDK) versions 3.0, 3.1 ------------------------------------------------------------------------------- SUMMARY ======= If you use DlgDirSelect() to get the selection from a list box and there is no selection, DlgDirSelect() returns zero and leaves the output string unchanged. Clicking in the white space after the last item in a list box is one reason there may not be a selection. Because DlgDirSelect() returns 0 (zero) when the selection is a file and 0 when there is no selection at all, using the return value alone is not enough to determine if there is a current selection. One way to determine if there is a selection is to send the LB_GETCURSEL message to the list box. If the return value is not LB_ERR from this message, there currently is a selected item in the list box. Additional query words: ====================================================================== Keywords : kb16bitonly kbCtrl kbListBox kbSDKPlatform kbGrpDSUser Technology : kbAudDeveloper kbWin3xSearch kbSDKSearch kbWinSDKSearch kbWinSDK300 kbWinSDK310 Version : WINDOWS:3.0,3.1 Issue type : kbinfo ============================================================================= 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.