Overview
This package adds a common dialog class, named MultipleFileOpenDialog, to the base image. It is similar to the standard FileOpenDialog but allows the selection of multiple files.
The MultipleFileOpenDialog answers an Array containing the full path name for each file selected or nil if the dialog was cancelled.
The dialog need to have a rough idea of how many files may be selected so that it can allocate an appropriately sized buffer. The default is 25 files, if you think that more files might be selected then this value should be increased. If the buffer allocated is too small the dialog answers nil.
