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705 lines
19 KiB
HTML
705 lines
19 KiB
HTML
<!DOCTYPE doctype PUBLIC "-//w3c//dtd html 4.0 transitional//en">
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<html>
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<head>
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<meta http-equiv="Content-Type"
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content="text/html; charset=iso-8859-1">
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<meta name="Author" content="mike judge">
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<title></title>
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</head>
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<body>
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<h1><b> A Guide to Embedding The Gecko Editor</b></h1>
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11/5/02 original by Michael Judge <<a
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href="mailto:mjudge@netscape.com">mjudge@netscape.com</a>><br>
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3/27/03 updates by Kathleen Brade <<a
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href="mailto:brade@netscape.com">brade@netscape.com</a>><br>
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<h2>In the Beginning there is MakeEditable</h2>
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<p>Given an nsIWebBrowser instance, get a nsIDOMWindow from the
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GetContentDOMWindow call. Then simply call
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nsIWebBrowser->do_GetInterface on the nsIWebBrowser to retrieve the
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nsIEditingSession from it. From there you call
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editingSession->MakeWindowEditable(domWindow, editortype,
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PR_TRUE, PR_FALSE); The first parameter is the nsIDOMWindow
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you just retrieved, the second is the editor type you want to create and the
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third is whether you want the window editable immediately or when the
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document is done loading, the fourth is whether you want the editor to make
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the whole document editable, the fifth is whether you want to turn of
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scripts, plugins, ... In calling this method the editor is
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created underneath and the event listeners etc. are all prepared.<br>
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</p>
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<p><i> nsCOMPtr<nsIDOMWindow> domWindow;<br>
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nsresult rv =
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nsIWebBrowser->GetContentDOMWindow(getter_AddRefs(domWindow));<br>
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if (NS_FAILED(rv)) return NS_ERROR_FAILURE; // we
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are not setup??!!<br>
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</i></p>
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<p><i> nsCOMPtr<nsIEditingSession>
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editingSession;<br>
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nsIWebBrowser->do_GetInterface(getter_AddRefs(editingSession));<br>
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if (editingSession)<br>
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editingSession->MakeWindowEditable(domWindow, "html", PR_TRUE,
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PR_FALSE, PR_TRUE, PR_FALSE);</i></p>
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<p>The valid editor types are:<br>
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</p>
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<ul>
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<li>"text" (similar to NotePad or a textarea; does not allow for html)</li>
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<li>"textmail" (similar to "text" but html can be inserted; intended
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for plaintext mail usage and handling of citations)</li>
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<li>"html" (this is the default type if no type is specified; it
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allows for all html tags to be inserted)<br>
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</li>
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<li>"htmlmail" (this is much like "html" except there are a few
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editing rules / behaviors that differ such as splitting of mail quotes)<br>
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</li>
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</ul>
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<h2>Editor Commands</h2>
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<p>To do anything meaningful you of course need to call commands and<br>
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receive updates. First get the nsICommandManager from the nsIWebBrowser<br>
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using do_GetInterface.</p>
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<p><i> nsCOMPtr<nsICommandManager>
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commandManager;<br>
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nsIWebBrowser->do_GetInterface(getter_AddRefs(commandMgr));</i><br>
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</p>
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<p>To call a command use DoCommand:</p>
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<p><i> </i><i>commandManager</i><i>->DoCommand(aCommand,
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aCommandParams);</i> </p>
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<p> <i>aCommand</i> is a const char * to a supported
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command name (see list below).<br>
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<i>aCommandParams</i> could possibly be a null
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pointer or a pointer to a valid structure filled with relative
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parameters to aCommand. (see list below for legal params)</p>
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<p>To see if a command is enabled use IsCommandEnabled</p>
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<p><i> </i><i>commandManager</i><i>->IsCommandEnabled(aCommand,
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retval)</i> </p>
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<p>To get the current command state of a given command use
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GetCommandState: </p>
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<p><i> </i><i>commandManager</i><i>->GetCommandState(aCommand,aCommandParams)</i> <br>
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</p>
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<h3>Index of Commands and Parameters</h3>
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<table cellpadding="2" cellspacing="2" border="1" width="100%">
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<tbody>
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<tr>
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<td valign="top">Command<br>
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</td>
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<td valign="top" width="75%">cmd_bold, cmd_italics,
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cmd_underline, cmd_tt, cmd_strikethru, cmd_superscript, cmd_subscript,
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cmd_nobreak, cmd_em, cmd_strong, cmd_cite, cmd_abbr, cmd_acronym,
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cmd_code, cmd_samp, cmd_var<br>
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</td>
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</tr>
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<tr>
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<td valign="top">Description<br>
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</td>
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<td valign="top" width="75%">acts upon the current selection to
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apply style<br>
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(cmd_tt is fixed width or "teletype" style)<br>
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</td>
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</tr>
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<tr>
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<td valign="top">GetCommandState<br>
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</td>
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<td valign="top" width="75%">"state_all"(boolean),
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"state_begin"(boolean),<br>
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"state_end"(boolean), "state_mixed"(boolean)<br>
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"state_enabled" (boolean)<br>
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</td>
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</tr>
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<tr>
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<td valign="top">DoCommand<br>
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</td>
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<td valign="top" width="75%">no parameters<br>
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</td>
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</tr>
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<tr>
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<td valign="top"><br>
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</td>
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<td valign="top" width="75%">see also cmd_removeStyles<br>
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</td>
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</tr>
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</tbody>
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</table>
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<p><br>
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</p>
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<table cellpadding="2" cellspacing="2" border="1" width="100%">
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<tbody>
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<tr>
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<td valign="top">Command<br>
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</td>
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<td valign="top" width="75%">cmd_removeLinks<br>
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</td>
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</tr>
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<tr>
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<td valign="top">Description<br>
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</td>
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<td valign="top" width="75%">removes the existing link from the
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selection (if any)<br>
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</td>
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</tr>
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<tr>
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<td valign="top">GetCommandState<br>
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</td>
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<td valign="top" width="75%">"state_enabled"(boolean)<br>
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???<br>
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</td>
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</tr>
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<tr>
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<td valign="top">DoCommand<br>
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</td>
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<td valign="top" width="75%">no parameters<br>
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</td>
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</tr>
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<tr>
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<td valign="top"><br>
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</td>
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<td valign="top" width="75%"><br>
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</td>
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</tr>
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</tbody>
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</table>
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<p><br>
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</p>
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<table cellpadding="2" cellspacing="2" border="1" width="100%">
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<tbody>
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<tr>
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<td valign="top">Command<br>
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</td>
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<td valign="top" width="75%">cmd_ol, cmd_ul, cmd_dt, cmd_dd<br>
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</td>
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</tr>
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<tr>
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<td valign="top">Description<br>
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</td>
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<td valign="top" width="75%">converts selection to appropriate
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list or list item; inserts new list if no selection (cmd_ol, cmd_ul)<br>
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</td>
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</tr>
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<tr>
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<td valign="top">GetCommandState<br>
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</td>
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<td valign="top" width="75%">"state_enabled"(boolean)<br>
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???<br>
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</td>
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</tr>
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<tr>
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<td valign="top">DoCommand<br>
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</td>
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<td valign="top" width="75%">no parameters<br>
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</td>
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</tr>
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<tr>
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<td valign="top"><br>
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</td>
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<td valign="top" width="75%">see also cmd_removeList<br>
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</td>
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</tr>
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</tbody>
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</table>
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<p><br>
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</p>
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<table cellpadding="2" cellspacing="2" border="1" width="100%">
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<tbody>
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<tr>
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<td valign="top">Command<br>
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</td>
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<td valign="top" width="75%">cmd_indent, cmd_outdent<br>
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</td>
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</tr>
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<tr>
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<td valign="top">Description<br>
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</td>
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<td valign="top" width="75%">indents/outdents the line(s) of the
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current selection<br>
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</td>
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</tr>
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<tr>
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<td valign="top">GetCommandState<br>
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</td>
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<td valign="top" width="75%">"state_enabled"(boolean)<br>
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???<br>
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</td>
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</tr>
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<tr>
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<td valign="top">DoCommand<br>
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</td>
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<td valign="top" width="75%">no parameters<br>
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</td>
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</tr>
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<tr>
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<td valign="top"><br>
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</td>
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<td valign="top" width="75%"><br>
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</td>
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</tr>
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</tbody>
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</table>
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<p><br>
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</p>
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<p> </p>
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<p> </p>
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<table cellpadding="2" cellspacing="2" border="1" width="100%">
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<tbody>
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<tr>
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<td valign="top">Command<br>
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</td>
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<td valign="top" width="75%">cmd_increaseFont, cmd_decreaseFont<br>
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</td>
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</tr>
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<tr>
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<td valign="top">Description<br>
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</td>
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<td valign="top" width="75%">acts upon the current selection to
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adjust font size (uses <big> and <small> tags).<br>
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</td>
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</tr>
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<tr>
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<td valign="top">GetCommandState<br>
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</td>
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<td valign="top" width="75%">"state_enabled" </td>
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</tr>
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<tr>
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<td valign="top">DoCommand<br>
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</td>
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<td valign="top" width="75%">no parameters<br>
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</td>
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</tr>
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<tr>
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<td valign="top"><br>
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</td>
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<td valign="top" width="75%"><br>
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</td>
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</tr>
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</tbody>
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</table>
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<p><br>
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</p>
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<table cellpadding="2" cellspacing="2" border="1" width="100%">
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<tbody>
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<tr>
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<td valign="top">Command<br>
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</td>
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<td valign="top" width="75%">cmd_undo, cmd_redo<br>
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</td>
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</tr>
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<tr>
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<td valign="top">Description<br>
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</td>
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<td valign="top" width="75%">undoes/redoes last executed command.
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(only available if txmgr.dll is present)<br>
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</td>
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</tr>
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<tr>
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<td valign="top">GetCommandState<br>
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</td>
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<td valign="top" width="75%">"state_enabled" </td>
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</tr>
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<tr>
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<td valign="top">DoCommand<br>
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</td>
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<td valign="top" width="75%">no parameters<br>
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</td>
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</tr>
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<tr>
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<td valign="top"><br>
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</td>
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<td valign="top" width="75%"><br>
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</td>
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</tr>
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</tbody>
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</table>
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<p><br>
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</p>
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<table cellpadding="2" cellspacing="2" border="1" width="100%">
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<tbody>
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<tr>
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<td valign="top">Command<br>
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</td>
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<td valign="top" width="75%">cmd_fontColor<br>
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</td>
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</tr>
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<tr>
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<td valign="top">Description<br>
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</td>
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<td valign="top" width="75%">acts upon the current selection to
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set the font color<br>
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</td>
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</tr>
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<tr>
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<td valign="top">GetCommandState<br>
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</td>
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<td valign="top" width="75%">"state_attribute" (cstring)<br>
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</td>
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</tr>
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<tr>
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<td valign="top">DoCommand<br>
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</td>
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<td valign="top" width="75%">"state_attribute" (cstring) **<br>
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</td>
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</tr>
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<tr>
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<td valign="top"><br>
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</td>
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<td valign="top" width="75%"><br>
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</td>
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</tr>
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</tbody>
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</table>
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<p><br>
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</p>
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<table cellpadding="2" cellspacing="2" border="1" width="100%">
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<tbody>
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<tr>
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<td valign="top">Command<br>
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</td>
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<td valign="top" width="75%">cmd_backgroundColor<br>
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</td>
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</tr>
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<tr>
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<td valign="top">Description<br>
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</td>
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<td valign="top" width="75%">sets the background color of
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the document<br>
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</td>
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</tr>
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<tr>
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<td valign="top">GetCommandState<br>
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</td>
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<td valign="top" width="75%">"state_attribute" (cstring) </td>
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</tr>
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<tr>
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<td valign="top">DoCommand<br>
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</td>
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<td valign="top" width="75%">"state_attribute" (cstring) ** </td>
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</tr>
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<tr>
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<td valign="top"><br>
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</td>
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<td valign="top" width="75%"><br>
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</td>
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</tr>
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</tbody>
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</table>
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<p><br>
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</p>
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<table cellpadding="2" cellspacing="2" border="1" width="100%">
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<tbody>
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<tr>
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<td valign="top">Command<br>
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</td>
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<td valign="top" width="75%">cmd_fontFace<br>
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</td>
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</tr>
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<tr>
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<td valign="top">Description<br>
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</td>
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<td valign="top" width="75%">sets the font face for the current
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selection<br>
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</td>
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</tr>
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<tr>
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<td valign="top">GetCommandState<br>
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</td>
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<td valign="top" width="75%">"state_attribute" (string) </td>
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</tr>
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<tr>
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<td valign="top">DoCommand<br>
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</td>
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<td valign="top" width="75%">"state_attribute" (cstring or
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string) <br>
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"Helvetica, Arial, sans-serif"<br>
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"Times New Roman, Times, serif"<br>
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"Courier New, Courier, monospace" <br>
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[any string is acceptable; the above strings should be considered
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examples or base functionality and in no way imply that this command
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won't handle other fonts]<br>
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</td>
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</tr>
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<tr>
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<td valign="top"><br>
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</td>
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<td valign="top" width="75%"><br>
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</td>
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</tr>
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</tbody>
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</table>
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<p><br>
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</p>
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<table cellpadding="2" cellspacing="2" border="1" width="100%">
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<tbody>
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<tr>
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<td valign="top">Command<br>
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</td>
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<td valign="top" width="75%">cmd_align<br>
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</td>
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</tr>
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<tr>
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<td valign="top">Description<br>
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</td>
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<td valign="top" width="75%">sets the alignment for the lines
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contained in the current selection<br>
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</td>
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</tr>
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<tr>
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<td valign="top">GetCommandState<br>
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</td>
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<td valign="top" width="75%">"state_attribute" (cstring) </td>
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</tr>
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<tr>
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<td valign="top">DoCommand<br>
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</td>
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<td valign="top" width="75%">"state_attribute"
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(cstring) "left","right","center", "full"??? XXXX<br>
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</td>
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</tr>
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<tr>
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<td valign="top"><br>
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</td>
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<td valign="top" width="75%"><br>
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</td>
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</tr>
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</tbody>
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</table>
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<p><br>
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cmd_insertHTML<br>
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cmd_insertLinkNoUI<br>
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cmd_insertImageNoUI<br>
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cmd_insertHR<br>
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</p>
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<p><br>
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</p>
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<table cellpadding="2" cellspacing="2" border="1" width="100%">
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<tbody>
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<tr>
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<td valign="top">Command<br>
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</td>
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<td valign="top" width="75%">"cmd_charSet" XXXXX </td>
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</tr>
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<tr>
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<td valign="top">Description<br>
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</td>
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<td valign="top" width="75%">sets the charset for the document.
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there must be a clear undo stack or this will not work<br>
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</td>
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</tr>
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<tr>
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<td valign="top">GetCommandState<br>
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</td>
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<td valign="top" width="75%">"state_attribute" (cstring)<br>
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</td>
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</tr>
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<tr>
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<td valign="top">DoCommand<br>
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</td>
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<td valign="top" width="75%">"state_attribute"
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(cstring) </td>
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</tr>
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<tr>
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<td valign="top"><br>
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</td>
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<td valign="top" width="75%"><br>
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</td>
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</tr>
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</tbody>
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</table>
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<p><br>
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</p>
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<table cellpadding="2" cellspacing="2" border="1" width="100%">
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<tbody>
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<tr>
|
|
<td valign="top">Command<br>
|
|
</td>
|
|
<td valign="top" width="75%">"cmd_copy", "cmd_delete", "cmd_cut",
|
|
"cmd_paste", "cmd_cutOrDelete"</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top">Description<br>
|
|
</td>
|
|
<td valign="top" width="75%">operates on the current selection to
|
|
copy, delete, cut and paste respectively<br>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top">GetCommandState<br>
|
|
</td>
|
|
<td valign="top" width="75%">*"state_enabled" (boolean) </td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top">DoCommand<br>
|
|
</td>
|
|
<td valign="top" width="75%">no parameter </td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><br>
|
|
</td>
|
|
<td valign="top" width="75%"><br>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p><br>
|
|
</p>
|
|
<table cellpadding="2" cellspacing="2" border="1" width="100%">
|
|
<tbody>
|
|
<tr>
|
|
<td valign="top">Command<br>
|
|
</td>
|
|
<td valign="top" width="75%">"cmd_deleteCharBackward", "cmd_deleteCharForward",
|
|
"cmd_deleteWordForward",<br>
|
|
"cmd_deleteWordBackward",
|
|
"cmd_deleteToBeginningOfLine", "cmd_deleteToEndOfLine",<br>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top">Description<br>
|
|
</td>
|
|
<td valign="top" width="75%">deletes relative to the current
|
|
selection end point.<br>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top">GetCommandState<br>
|
|
</td>
|
|
<td valign="top" width="75%">*"state_enabled" (boolean) </td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top">DoCommand<br>
|
|
</td>
|
|
<td valign="top" width="75%">no parameter </td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><br>
|
|
</td>
|
|
<td valign="top" width="75%"><br>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p><br>
|
|
</p>
|
|
<table cellpadding="2" cellspacing="2" border="1" width="100%">
|
|
<tbody>
|
|
<tr>
|
|
<td valign="top">Command<br>
|
|
</td>
|
|
<td valign="top" width="75%">"cmd_scrollTop", "cmd_scrollBottom", "cmd_scrollPageUp", "cmd_scrollPageDown",<br>
|
|
"cmd_selectTop",
|
|
"cmd_selectBottom", "cmd_selectLineNext", "cmd_selectLinePrevious",<br>
|
|
"cmd_selectCharPrevious",
|
|
"cmd_selectCharNext", "cmd_selectBeginLine", "cmd_selectEndLine",<br>
|
|
"cmd_selectWordPrevious", "cmd_selectWordNext", </td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top">Description<br>
|
|
</td>
|
|
<td valign="top" width="75%">scrolls relative to the current
|
|
selection end point.<br>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top">GetCommandState<br>
|
|
</td>
|
|
<td valign="top" width="75%">*"state_enabled" (boolean) </td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top">DoCommand<br>
|
|
</td>
|
|
<td valign="top" width="75%">no parameter </td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><br>
|
|
</td>
|
|
<td valign="top" width="75%"><br>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p><br>
|
|
</p>
|
|
<table cellpadding="2" cellspacing="2" border="1" width="100%">
|
|
<tbody>
|
|
<tr>
|
|
<td valign="top">Command<br>
|
|
</td>
|
|
<td valign="top" width="75%">"cmd_movePageUp", "cmd_movePageDown", "cmd_moveTop", "cmd_moveBottom",<br>
|
|
"cmd_lineNext",
|
|
"cmd_linePrevious", "cmd_charPrevious", "cmd_charNext", "cmd_beginLine",<br>
|
|
"cmd_endLine", "cmd_wordPrevious", "cmd_wordNext"</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top">Description<br>
|
|
</td>
|
|
<td valign="top" width="75%">scrolls relative to the current
|
|
selection end point.<br>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top">GetCommandState<br>
|
|
</td>
|
|
<td valign="top" width="75%">*"state_enabled" (boolean) </td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top">DoCommand<br>
|
|
</td>
|
|
<td valign="top" width="75%">no parameter </td>
|
|
</tr>
|
|
<tr>
|
|
<td valign="top"><br>
|
|
</td>
|
|
<td valign="top" width="75%"><br>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>*Note: GetCommandState in these cases will return whether or not it
|
|
is <br>
|
|
possible to call DoCommand. This will not really give you any
|
|
concrete <br>
|
|
information on the state of the current indent and outdent .<br>
|
|
**Note: for color values, use the cstring representation of RRGGBB. i.e.<br>
|
|
RED="#FF0000" and BLACK="#000000"<br>
|
|
<br>
|
|
</p>
|
|
<h2>nsICommandParams </h2>
|
|
<h3>Creating:</h3>
|
|
<i>- how do you create an nsICommandParams? -saari</i><br>
|
|
<br>
|
|
<h3>Writing:</h3>
|
|
Once you have created an nsICommandParams you call the "Set" methods.
|
|
<p>SetBooleanValue<br>
|
|
SetLongValue<br>
|
|
SetDoubleValue<br>
|
|
SetStringValue<br>
|
|
SetCStringValue<br>
|
|
SetISupportsValue<br>
|
|
RemoveValue</p>
|
|
<p>Each will take a name value pair. In the case of
|
|
SetBooleanValue for<br>
|
|
example you use a boolean as the second parameter.</p>
|
|
<p> <i>
|
|
commandParam->SetCStringValue("state_attribute","left");</i><br>
|
|
</p>
|
|
<h3>Reading:</h3>
|
|
For reading you may go after individual name/value pairs you know are<br>
|
|
there or you may iterate through all the name/value pairs and<br>
|
|
programatically pull off data.
|
|
<p>First<br>
|
|
GetNext (returns the next name in the name/value pair list)<br>
|
|
HasMoreElements<br>
|
|
GetValueType (numeric enum type see nsICommandParams for values)</p>
|
|
<p>If the name/value pair is known or it was obtained using the methods<br>
|
|
described above, it is possible to call the following methods.</p>
|
|
<p>GetBooleanValue<br>
|
|
GetLongValue<br>
|
|
GetDoubleValue<br>
|
|
GetStringValue<br>
|
|
GetCStringValue<br>
|
|
GetISupportsValue</p>
|
|
<p>All of these take pointers to values except for GetStringValue which<br>
|
|
demands a reference to an nsAString.</p>
|
|
<p>commandParam->GetBooleanValue("state_enabled",&boolval);<br>
|
|
</p>
|
|
<br>
|
|
</body>
|
|
</html>
|