More discovery ... It appears that the max length of a command line generated by dragging and dropping files on a shortcut is 255 chars. This is based on my tests with VFP 9 SP1 under XP Pro. This appears to be a limitation of the Windows shell's drag-and-drop support and not VFP. I have not been able to confirm this 255 char limitation via Google other than a few web pages that insinuate that shell drag and drop supports a max of approximately 10 files.
According to <http://blogs.msdn.com/oldnewthing/archive/2003/12/10/56028.aspx> the max length of a CMD.EXE command line is 8192 chars (2048 if launched via Win32 Shellexec or 32767 if launched via Win32 CreateProcess) Using CMD.EXE I can pass up to 128 files to a VFP executable. (The VFP specific limitation of 128 command line parameters described in earlier posts in this thread). Conclusion: If you're building applications that accept files via drag and drop on a shortcut link, you will be limited to a very small number of files. Question: Any ideas if its possible to expand the max length of the shell's drag-and-drop command line length to a value greater than 255? Thanks, Malcolm _______________________________________________ Post Messages to: [email protected] Subscription Maintenance: http://leafe.com/mailman/listinfo/profox OT-free version of this list: http://leafe.com/mailman/listinfo/profoxtech ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.
