Saving Files

#include <stdio.h>
#include "graphapp.h"

App *app;

void close_it(Window *w)
{
  char *filename = NULL;
  int result = ask_yes_no_cancel(app, "Confirm Save", "Save changes?");

  if (result == YES) {
    filename = ask_file_save(app, "Save File As",
                             "Save the file as:", "untitled.txt");
    /* save the file somehow */
    ask_ok(app, "File Saved", "The file was sucessfully saved.");
  }
  else if (result == CANCEL)
     return;

  hide_window(w);
}

int main(int argc, char *argv[])
{
  Window *w;

  app = new_app(argc, argv);
  w = newwindow(app, rect(0,0,300,250),
                "Text Editor", STANDARD_WINDOW);
  setclose(w, close_it);
  show_window(w);
  main_loop(app);
  return 0;
}

Notes:

• Dialog windows can be used to ask the user questions.
• The dialog functions typically start with ask_
• Here, when the window is closed, the call-back is called. It uses some dialog windows to ask if the user wants to save the file, and if so, asks for the file name.