on-save-file

   

  Called just before the buffer is saved to a file. If the return value is #f, the file is not saved. See also after-save-file.

• (send a-wx:media-buffer on-save-file filename format) -> boolean
      filename : string
      format : small integer

  The filename argument is the name the file will be saved to. See save-file and save-file for information about format.