>Hi All,
>
>I'm using VFP 6.0 and accessing data through a .dll. I've created a test program in which I've included delibrate errors to see if how the .dll responds. I want to intercept these error and continue. Since they are not VFP errors ON ERROR and ON ERROR Resume Next doesn't appear to work. How can I intercept these errors and continue on to the next test? TIA.
>
>Regards,
>
Hi Paige,

Typically, the return value of a DLL indicates the success or failure. These generally, in Win32, fall into two types. Either the function returns ERROR_SUCCESS (0) or it'll return 0 if the function fails. In this latter case, this value equates to Boolean FALSE, and the function is defined as returning a "BOOL". In this case, usually you would call GetLastError() to retrieve the error code. This is a generalization, however, since quite a number of functions don't follow this convention.

Now if you're creating a VFP DLL, you could expose an error number property, that you could check immediately after the call. What you'd do is set this value on entry, and if the some sort of error occurred jump through a method to set your error code.