lg
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<td colspan="3" style="background:#E8F8E8;">  For each created dialog in your plugin, you should register it (and unregister while destroy it) to Notepad++ by using this message. If this message is ignored, then your dialog won't react with the key stroke messages such as TAB key. For the good functioning of your plugin dialog, you're recommended to not ignore this message.
<p>hDlg is the handle of the dialog to be registed.
</p><p>op&nbsp;: the operation mode. MODELESSDIALOGADD is to reg