OpenEuphoria

RE: CopyFileEx API Call

• Posted by "Elliott S. de Andrade" <quantum_analyst at hotmail.com> Oct 03, 2004
• 409 views

>From: Larry Miller <guest at RapidEuphoria.com>
>Reply-To: EUforum at topica.com
>To: EUforum at topica.com
>Subject: CopyFileEx API Call
>Date: Sat, 02 Oct 2004 21:07:00 -0700
>
>posted by: Larry Miller <lmiller7 at mail.com>
>
>I have been trying to use the CopyFileEx function with a call back routine=

>provided by call_back(). The copy works and progress is reported, but ther=
e
>is a machine exception when CopyFileEx returns. I believe the problem is
>that CopyFileEx is passing too many parameters. It passes no less than 9
>separate parameters, 4 of which are LARGE_INTEGERS, for a total of 13
>32 bit values. According to the Euphoria documentation a maximum of 9 are
>allowed for a callback function.
>

   A LARGE_INTEGER is a union of a long long and two long's (ie. a 64-bit=

integer that can be accessed as two 32-bit integers). It should be regarded=

as a pointer (to the 64-bit integer.) That should give you exactly 9
parameters, just enough...

>This is with Euphoria 2.4 on Windows 2000.
>
>Am I understanding the situation incorrectly or is this a real problem?
>Is there some way I can use this function? My experience with Win32Lib and=

>Windows programming is somewhat limited. Maybe one of you seasoned
>programmers can shed some light on the subject.
>
>Larry Miller
>

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