DOCUMENT:Q129636 15-MAY-2001 [vbwin] TITLE :PRB: "Ambiguous name detected" Compile-Time Error in VB 4.0 PRODUCT :Microsoft Visual Basic for Windows PROD/VER::4.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Visual Basic Professional Edition, 16-bit, for Windows, version 4.0 - Microsoft Visual Basic Professional Edition, 32-bit, for Windows, version 4.0 - Microsoft Visual Basic Enterprise Edition, 16-bit, for Windows, version 4.0 - Microsoft Visual Basic Enterprise Edition, 32-bit, for Windows, version 4.0 ------------------------------------------------------------------------------- SYMPTOMS ======== Better type checking in Microsoft Visual Basic version 4.0 causes it to return a compile-time error message when you declare two functions (or subroutines) with the same name in the same module or form. This is a change in behavior from Microsoft Visual Basic version 3.0. The error message returned is: Ambiguous name detected: STATUS ====== This behavior is by design. MORE INFORMATION ================ Steps to Reproduce Behavior --------------------------- 1. Start a new project in Visual Basic. Form1 is created by default. 2. Add the following code to the general declarations section of Form1: Private Declare Function GetSystemDirectory Lib "Kernel" _ (ByVal strBuffer As String, ByVal intSize As Integer) As Integer Private Declare Function GetSystemDirectory% Lib "Kernel" _ (ByVal lpBuffer$, ByVal nSize%) 3. Attempt to run the application by pressing the F5 key. Visual Basic will not run the application. Instead you will get this error message: Ambiguous name detected: GetSystemDirectory Additional query words: 4.00 vb4win vb4all ====================================================================== Keywords : Technology : kbVBSearch kbAudDeveloper kbVB400Search kbVB400 kbVB16bitSearch Version : :4.0 Issue type : kbprb ============================================================================= 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 2001.