===== 6.2.1.8. Virtual Buffer Settings The Virtual Buffer settings dialog can be found in the Preferences menu, under "Virtual Buffers...". Alternatively, it can be accessed by pressing NVDA+Control+B. The dialog contains the following options: ====== Maximum Number of Characters on One Line This field sets the maximum length of a line of a virtual buffer (in characters). ====== Maximum Lines Per Page Although virtual buffers don't really have pages, this field sets the amount of lines you will move by when pressing page up or page down while in a virtual buffer. ====== Use screen layout This option allows you to specify whether content in the virtual Buffer should place content such as links and other fields on their own line, or if it should keep them in the flow of text as it is visually shown. If the option is enabled then things will stay as they are visually shown, but if it is disabled then fields will be placed on their own line. ====== Report layout tables When disabled this option makes NVDA only report tables that contain tabular data (where it makes sense to know that this is a table). But if enabled, NVDA will also report tables used purely for visual presentation. ====== Configuring announcement of fields such as links and headings Previous versions of NVDA allowed you to use the Virtual Buffer settings dialog to configure whether NVDA should announce the type of field that you entered while reading through web content. Examples of field types are links, headings, tables, and lists. To configure these, please find new options in the [Document_Formatting_Settings 書式設定] dialog. These options now not only affect virtualBuffers, but any documents that may cause these types of fields to be announced. ====== Automatic focus mode for focus changes This option allows focus mode to be invoked if focus changes. For example, when on a web page, if you press tab and you land on a form, if this option is checked, focus mode will automatically be invoked. ====== Automatic focus mode for caret movement This option, when checked, allows NVDA to enter and leave focus mode when using arrow keys. For example, if arrowing down a webpage and you land on an edit box, NVDA will automatically bring you into focus mode. If you arrow out of the edit box, NVDA will put you back in browse mode. ====== Audio indication of Focus and Browse modes If this option is enabled, NVDA will play special sounds when it switches between browse mode and focus mode in a virtual Buffer, rather than speaking the change.
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