>How to check following error.
>
>Visual Class Library e:\..\users\dp\classes\samples.vcx has the following errors:
> Proc./Func. MAINHWND - Undefined
> Proc./Func. _WHTOHWND - Undefined
> Proc./Func. _WONTOP - Undefined
>
>I copied samples.vc* from VFP5's samples directory.
>After completion of Build EXE above message is displayed in .ERR file.
>
>Have I done anything wrong.
>
>We are using moverlist class from SAMPLES.VCX
>
>EXE works fine. But why above error is coming ?
>

Something is referencing some functions in the Visual FoxPro HWND control FOXHWND.OCX; as long as it's installed on the system, all that's missing are some external references which are being resolved at runtime. To get rid of the error messages when compiling, you need to add the appropriate EXTERNAL compiler directive. If you're going to distribute your app, make certain to include FOXHWND.OCX and register it on the target system; Setup Wizard should take care of this for you if you create your install using it and make certain to include the .OCX in the project.