DROP FILE FUNCTIONS

  Windows offers the capability of selecting one or more files from its File
  Manager application and dropping those files over a window.

  FiveWin lets you easily take advantage of this capability, giving you the
  the opportunity to develop highly context sensitive applications, that may
  perform many different actions when receiving different kinds of files.

  Try the samples we provide with FiveWin and you will discover that in a
  short time you can do anything you can imagine with this feature.


  Process explanation:

     1. A window wants to receive dropped files, and therefore call 
        DragAcceptFiles()

     2. A DropFile event has occurred and Windows sends a WM_DROPFILES
        message to the window, providing a special hDrop handle.

     3. The window uses DragQueryFiles() and DragQueryPoint() to get the
        dropped file(s) information and performs any desired action.

     4. The window is about to be destroyed and calls DragFinish() to
        release the memory allocated by Windows for this process.