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POSignifying unsaved changes by prepending * in window title - how to add a black dot in the window close button on Mac OS X?
 

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  1. POSignifying unsaved changes by prepending * in window title - how to add a black dot in the window close button on Mac OS X?
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    <p> I am writing a text editor in Tkinter, using a <code>TopLevel</code> window that includes a <code>Text</code> widget. Currently, when a document/buffer contains unsaved changes, I prepend the title of the window with an asterisk as in <code>MyDocument</code> -> <code>*MyDocument</code> , as customary under *nix environments. For that purpose, I am using the <code>edit_modified</code> method of <code>Text</code> as follows:</p> <pre class="lang-py prettyprint-override"><code>import Tkinter as tk class EditingWindow(tk.Toplevel): # [...] self.text = tk.Text(...) # track modifications of the text: self.text.bind("&lt;&lt;Modified&gt;&gt;", self.modified) def modified(self, event=None): if self.text.edit_modified(): title=self.title() if title[0] != '*': self.title("*" + title) else: title=self.title() if title[0] == '*': self.title(title[1:]) def save(self, event=None): # [... saving under a filename kept in the variable self.filename ...] self.text.edit_modified(False) self.title(os.path.basename(self.filename)) </code></pre> <p><b>My question is:</b> On Mac OS X, rather than prepending the window title with an asterisk, a black dot appears in the window close button (the red circular button on the topleft corner) to signify unsaved changes. Is it possible to access this feature from Tkinter (or, more generally, from Tcl/Tk)?</p> <p><b> Edit 2: </b> After initial suggestions to use applescript, Kevin Walzer came up with the solution: setting <code>tkinter</code>'s <code>wm_attributes</code>. Above, that amounts to using</p> <pre class="lang-py prettyprint-override"><code>self.wm_attributes("-modified", 1) # sets black dot in toplevel's close button (mac) </code></pre> <p>and</p> <pre class="lang-py prettyprint-override"><code>self.wm_attributes("-modified", 0) # unsets black dot in toplevel's close button (mac) </code></pre> <p>in <code>self.modified</code>.</p>
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    1. USarmando.sano
    1. USarmando.sano
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    1. COIn all my years of using a mac I've never noticed a black dot in the close button. What application does that?
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      1. POSignifying unsaved changes by prepending * in window title - how to add a black dot in the window close button on Mac OS X?
      1. USBryan Oakley
    2. COWell, it seems it depends indeed on the application and the OS X version: TextEdit (mac os x 10.6.8, but not os x 10.7.5?), Emacs, LibreOffice, MSWord (both os x versions)
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      1. USarmando.sano
    3. COMost OS X apps use this black dot to indicate that the current document has changed (Mail is one example). Starting with Lion, it is not used by apps that instead use the OS-level version control.
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      1. USPaul Lefebvre
 

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