blocking window

["Andre' Karwath" <Andre Karwath informatik tu-chemnitz de>]

Hello,

I'm about writing a program which allows the user to save some
data. I'm looking for a simpler method than I the one I'm using
at the moment:

file_save ()
 ... creates a file_selection window.
     If the user press OK/Cancel, file_save_ok () is called
     
file_save_ok ()
 ... if the selected file does not exist, file_save_ok_ok ()
     is called
 ... if the selected file exists, a message box appears and
     asks whether the file shall be overriden. After Yes/No,
     file_save_ok_ok () is called
     
file_save_ok_ok ()
 ... if the file exists and shall be overriden or if the file
     did not exist, finally it can be saved.


Now, I'm looking for a simpler method for doing this - something
like a blocking window, demonstrated by the following pseudo
code:

file=open_file_window ();
if file_exists (file)
   if !file_shall_be_overriden() return;
// now save the file

The major advantage is that I do not need three function for
such a small task and it would also avoid the globally holding
of the filename.

Has anyone an idea? Or does everybody this with three functions?


Thanks a lot for your help.

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