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# 3. Key bindings and user-level lisp functions

preview-latex adds key bindings starting with C-c C-p to the supported modes of AUCTeX (See (auctex)Key Index). It will also add its own ‘Preview’ menu in the menu bar, as well as an icon in the toolbar.

The following only describes the interactive use: view the documentation strings with C-h f if you need the Lisp information.

C-c C-p C-p
preview-at-point
Preview/Generate previews (or toggle) at point

If the cursor is positioned on or inside of a preview area, this toggles its visibility, regenerating the preview if necessary. If not, it will run the surroundings through preview. The surroundings include all areas up to the next valid preview, unless invalid previews occur before, in which case the area will include the last such preview in either direction. And overriding any other action, if a region is active (transient-mark-mode or zmacs-regions), it is run through preview-region.

<mouse-2>

The middle mouse button has a similar action bound to it as preview-at-point, only that it knows which preview to apply it to according to the position of the click. You can click either anywhere on a previewed image, or when the preview is opened and showing the source text, you can click on the icon preceding the source text. In other areas, the usual mouse key action (typically: paste) is not affected.

<mouse-3>

The right mouse key pops up a context menu with several options: toggling the preview, regenerating it, removing it (leaving the unpreviewed text), copying the text inside of the preview, and copying it in a form suitable for copying as an image into a mail or news article. This is a one-image variant of the following command:

C-c C-p C-w
preview-copy-region-as-mml
Copy a region as MML

This command is also available as a variant in the context menu on the right mouse button (where the region is the preview that has been clicked on). It copies the current region into the kill buffer in a form suitable for copying as a text including images into a mail or news article using mml-mode (see (emacs-mime)Composing section ‘Composing’ in Emacs MIME).

If you regenerate or otherwise kill the preview in its source buffer before the mail or news gets posted, this will fail. Also you should generate images you want to send with preview-transparent-border set to nil, or the images will have an ugly border. preview-latex detects this condition and asks whether to regenerate the region with borders switched off. As this is an asynchronous operation running in the background, you’ll need to call this command explicitly again to get the newly generated images into the kill ring.

Preview your articles with mml-preview (on M-m P, or C-c C-m P in Emacs 22) to make sure they look fine.

C-c C-p C-e
preview-environment
Preview/Generate previews for environment

Run preview on LaTeX environment. The environments in preview-inner-environments are treated as inner levels so that for instance, the split environment in $$\begin{split}…\end{split}$$ is properly displayed. If called with a numeric argument, the corresponding number of outward nested environments is treated as inner levels.

C-c C-p C-s
preview-section
Preview/Generate previews for section

Run preview on this LaTeX section.

C-c C-p C-r
preview-region
Preview/Generate previews for region

Run preview on current region.

C-c C-p C-b
preview-buffer
Preview/Generate previews for buffer

Run preview on the current buffer.

C-c C-p C-d
preview-document
Preview/Generate previews for document

Run preview on the current document.

C-c C-p C-c C-p
preview-clearout-at-point
Preview/Remove previews at point

Clear out (remove) the previews that are immediately adjacent to point.

C-c C-p C-c C-s
preview-clearout-section
Preview/Remove previews from section

Clear out all previews in current section.

C-c C-p C-c C-r
preview-clearout
Preview/Remove previews from region

Clear out all previews in the current region.

C-c C-p C-c C-b
preview-clearout-buffer
Preview/Remove previews from buffer

Clear out all previews in current buffer. This makes the current buffer lose all previews.

C-c C-p C-c C-d
preview-clearout-document
Preview/Remove previews from document

Clear out all previews in current document. The document consists of all buffers that have the same master file as the current buffer. This makes the current document lose all previews.

C-c C-p C-f
preview-cache-preamble
Preview/Turn preamble cache on

Dump a pregenerated format file. For the rest of the session, this file is used when running on the same master file. Use this if you know your LaTeX takes a long time to start up, the speedup will be most noticeable when generating single or few previews. If you change your preamble, do this again. preview-latex will try to detect the necessity of that automatically when editing changes to the preamble are done from within Emacs, but it will not notice if the preamble effectively changes because some included file or style file is tampered with.

C-c C-p C-c C-f
preview-cache-preamble-off
Preview/Turn preamble cache off

Clear the pregenerated format file and stop using preambles for the current document. If the caching gives you problems, use this.

C-c C-p C-i
preview-goto-info-page

M-x preview-report-bug <RET>
preview-report-bug
Preview/Report Bug

This is the preferred way of reporting bugs as it will fill in what version of preview-latex you are using as well as versions of relevant other software, and also some of the more important settings. Please use this method of reporting, if at all possible and before reporting a bug, have a look at Known problems.

C-c C-k
LaTeX/TeX Output/Kill Job

Kills the preview-generating process. This is really an AUCTeX keybinding, but it is included here as a hint. If you are generating a preview and then make a change to the buffer, preview-latex may be confused and place the previews wrong.

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