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Declare DLL call caused an exception (!!!)
Message
General information
Forum:
Visual FoxPro
Category:
Coding, syntax & commands
Miscellaneous
Thread ID:
00506373
Message ID:
00506385
Views:
15
FUNCTION SYSGetUserName
LOCAL lcUserName, lnBufSize, RetCode, NullCharPos

    lcUserName = REPLICATE(CHR(32), 80)
    lnBufSize = 80

    *---call WINAPI
    Declare Integer GetUserName IN WIN32API String @lpBuffer, Integer nSize
    RetCode = GetUserName(@lcUserName, lnBufSize)
    CLEAR DLLS

    *---search for the end of the string
    NullCharPos = AT(CHR(0), lcUserName)
    IF NullCharPos > 0 THEN
        lcUserName = LEFT(lcUserName, NullCharPos - 1)
    ELSE
       lcUserName = ""
    ENDIF

    RETURN lcUserName

ENDFUNC
>
>Try adding the @ sign infront of lcUserName in the call to GetUserName, so it is called "By Reference".
>
>Btw. There is a command for everything and I'm still finding new stuff every week. Instead of REPLICATE(CHR(32), 80), you could do a SPACE(80)
>
>Hope that helped,

Thanks for the quick answer!

I tried that (adding the @) but it didn't work (same error message.) Plus, I knew about the SPACE function but prefered using REPLICATE because, at the beginning, I was filling the string with null characters (chr(0)).

What next?

Stephane.
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