# เครื่องมือและโปรแกรมอรรถประโยชน์

This section describes some of the tools and utilities in the GNOME Desktop.

## การเรียกโปรแกรม

The Run Application dialog gives you access to the command line. When you run a command in the Run Application dialog, you cannot receive output from the command.

To run a command from the command line perform the following steps:

1. Open the Run Application dialog in any of the following ways:

   From a panel

     You can add the Run Application button to any panel. See . Click on the Run Application panel button to open the Run Application dialog.

   Using shortcut keys

     Press Alt F2. You can change the shortcut keys that display the Run Application dialog in the Keyboard Shortcuts preference tool.

   The Run Application dialog is displayed.

2. Enter the command that you want to run in the blank field, or choose from the list of known applications.

   If you enter only the location of a file, an appropriate application will launch to open it. If you enter a web page address, your default web browser will open the page. Prefix the web page address with http://, as in http://www.gnome.org.

   To choose a command that you ran previously, click the down arrow button beside the command field, then choose the command to run.

   You can also use the Run with file button to choose a file to append to the command line. For example, you can enter emacs as the command, then choose a file to edit.

   Select the Run in terminal option to run the application or command in a terminal window. Choose this option for an application or command that does not create a window in which to run.

3. Click on the Run button on the Run Application dialog.

## การจับภาพหน้าจอ

You can take a screenshot in any of the following ways:

- From any panel

  You can add a Take Screenshot button to any panel. For instructions on how to do this, see . Click on the Take Screenshot button to take a screenshot of the entire screen.

- Use shortcut keys

  To take a screenshot, use the following shortcut keys:

  Default Shortcut Keys | หน้าที่
  --- | ---
  Print Screen | Takes a screenshot of the entire screen.
  Alt Print Screen | Takes a screenshot of the window which is active.

  You can use the Keyboard Shortcuts preference tool to modify the default shortcut keys.

- From the Menubar

  Choose Applications Accessories Take Screenshot.

- From the Terminal

  You can use the `gnome-screenshot` command to take a screenshot. The `gnome-screenshot` command takes a screenshot of the entire screen, and displays the Save Screenshot dialog. Use the Save Screenshot dialog to save the screenshot.

  You can also use options on the `gnome-screenshot` command as follows:

  Option | หน้าที่
  --- | ---
  `--window` | Takes a screenshot of the window that has focus.
  `--delay=seconds` | Takes a screenshot after the specified number of seconds, and displays the Save Screenshot dialog. Use the Save Screenshot dialog to save the screenshot.
  `--include-border` | Takes a screenshot including the border of the window.
  `--remove-border` | Takes a screenshot without the border of the window.
  `--border-effect=shadow` | Takes a screenshot and adds a shadow bevel effect around it.
  `--border-effect=border` | Takes a screenshot and adds a border effect around it.
  `--interactive` | Opens a window that lets you set options before taking the screenshot.
  `--help` | Displays the options for the command.

When you take a screenshot, the Save Screenshot dialog opens. To save the screenshot as an image file, enter the filename for the screenshot, choose a location from the drop-down list and click the Save button. You can also use the Copy to Clipboard button to copy the image to the clipboard or transfer it to another application by drag-and-drop.

## Yelp: โปรแกรมอ่านวิธีใช้

### เกริ่นนำ

The Yelp Help Browser application allows you to view documentation regarding GNOME and other components through a variety of formats. These formats include docbook files, HTML help pages, man pages and info pages (support for man pages and info pages may optionally be compiled in). Despite the different formats supported, Yelp does its best to provide a unified look and feel regardless of the original document format.

Yelp Help Browser is internationalised, meaning that it has support to view documents in different languages. The documents must be localised or translated for each language and installed properly for Yelp Help Browser to be able to view them.

### การเปิด Yelp

#### การเปิด Yelp โปรแกรมแสดงวิธีใช้

คุณสามารถเปิด Yelp โปรแกรมแสดงวิธีใช้ ได้ด้วยวิธีต่าง ๆ ต่อไปนี้:

เมนู ระบบ

  เลือก วิธีใช้

บรรดทัดคำสั่ง

  เรียกคำสั่งต่อไปนี้: `yelp`

#### การสั่งงาน

When you start Yelp Help Browser, you will see the following window appear.

##### Yelp Help Browser Window

Yelp Help Browser contains the following elements in

Menubar

  แฟ้ม

    Use this menu to Open a New Window, view the About this Document page, Print the current document, or Close the window.

  Edit

    Use this menu to Copy, Select all, Find..., or to set your Preferences.

  Go

    Use this menu to navigate Back, Forward, to the Help Topics page. When viewing a DocBook document, use this menu to navigate to the Next Section, Previous Section or to the Contents.

  Bookmarks

    Use this menu to Add Bookmark(s), or Edit Bookmark(s).

  Help

    View information about Yelp Help Browser and contributors to the project through the About menuitem. Open this document with the Contents menuitem or by pressing F1.

Toolbar

  Back

    Use this button to navigate back in your document history.

  Forward

    Use this button to navigate forward in your document history.

  Help Topics

    Use this button to return to the main table of contents (shown in ).

Browser Pane

  The browser pane is where you will be presented with the table of contents or the documentation. Use the table of contents to navigate to the documentation you need.

### การใช้ Yelp

#### เปิดเอกสาร

To open a document in Yelp Help Browser:

- In an application, click Help Contents

- Use the Table of Contents to navigate to the desired document.

- You can drag a Docbook XML file from Nautilus to the Yelp window or launcher.

- Press the F1 key.

Alternatively, you may view a particular document by invoking Yelp Help Browser from the command line or dragging files to Yelp. See for more on this.

#### เปิดหน้าต่างใหม่

To open a new window:

- Click File New Window

- Use the key combination Ctrl N

#### เกี่ยวกับเอกสารนี้

To view information about the currently open document:

- Click File About This Document

This option is only available for DocBook documentation. Legal notices and documentation contributors are usually listed in this section.

#### พิมพ์หน้าเอกสาร

To print any page that you are able to view in Yelp Help Browser:

- Click File Print this Page

#### พิมพ์เอกสาร

To print an entire document:

- Click File Print this Document

This option is only available for DocBook documentation.

#### ปิดหน้าต่าง

To close a window in Yelp Help Browser, do the following:

- Click File Close Window

- Use the key combination Ctrl W

#### ปรับแต่ง

To set your preferences in Yelp Help Browser:

- Click Edit Preferences

A window will appear that looks like :

##### Yelp Help Browser Preferences Window

The options that are available in this dialog have the following functions:

Use system fonts

  Check this option to display documentation using the default fonts used by the GNOME Desktop.

  To choose your own fonts to display documentation, uncheck this option and click on the buttons next to the text Variable Width or Fixed Width.

  Variable Width

    This is the font to use when a static or fixed width font is not required. The majority of text will be of this type.

  Fixed Width

    This is the font to use when all text characters need to be of the same size. This font is usually used to indicate commands, program blocks, or other text that falls under these categories.

Browse with caret

  Click this option if you would like see a caret or cursor in the . This allows you to browse the document more easily by showing where the cursor is located in the document.

#### เดินย้อนประวัติการดูเอกสาร

To go back in the document history:

- Click Go Back

- Use the key combination Alt Left

- Use the Back button in the Toolbar

#### เดินหน้าในประวัติการดูเอกสาร

To go forward in the document history:

- Click Go Forward

- Use the key combination Alt Right

- Use the Forward button in the Toolbar

#### ไปยังหมวดหมู่วิธีใช้

To go to the Help Topics:

- Click Go Help Topics

- Use the key combination Alt Home

- Use the Help Topics button in the Toolbar

#### ไปยังหัวข้อก่อนหน้า

To go to the previous section:

- Click Go Previous Section

- Use the key combination Alt Up

This option is only available in DocBook formatted documents.

#### ไปยังหัวข้อถัดไป

To go to the next section:

- Click Go Next Section

- Use the key combination Alt Down

This option is only available in DocBook formatted documents.

#### ไปยังสารบัญ

To go to the contents for a document:

- Click Go Contents

This option is only available in DocBook formatted documents.

#### เพิ่มที่คั่นหน้า

To add a bookmark for a particular document:

- Click Bookmarks Add Bookmark

- Use the key combination Ctrl D

A window will appear that looks like .

##### Add Bookmark Window

Enter your desired bookmark title in to the Title text entry field. Then click Add to add the bookmark, or click Cancel to cancel the request.

#### แก้ไขที่คั่นหน้า

To edit your collection of bookmarks:

- Click Bookmarks Edit Bookmarks...

- Use the key combination Ctrl B

A window will appear that looks like .

##### Edit Bookmarks Window

You can manage your bookmarks using this window in the following ways:

Open

  Use this button to open the selected bookmark in a new window.

Rename

  Use this button to rename the title of your bookmark.

Remove

  Use this button to delete the bookmark from your collection.

Once you are finished managing your bookmarks, click the Close button to exit the Edit Bookmarks Window.

#### ดูวิธีใช้

To get help using Yelp Help Browser (and see this document):

- Click Help Contents

### ความสามารถขั้นสูง

#### การเปิดเอกสารแบบเจาะจง

##### การเปิดเอกสารจากโปรแกรมจัดการแฟ้ม

To open a document, such as an XML file, from the file manager, open the document in Nautilus File Manager, or drag the icon from Nautilus to the Yelp document pane or launcher.

##### การใช้บรรทัดคำสั่งเปิดเอกสาร

Yelp Help Browser supports opening documents from the command line. There are a number of URIs (Uniform Resource Identifiers) that can be used. These include:

`file:`

  Use this URI when you want to access a file with yelp, for example:

      yelp file:///usr/share/gnome/help/gcalctool/C/gcalctool.xml

`ghelp:` or `gnome-help:`

  Use this URI when you want to access GNOME help documents, which are typically written in DocBook format.

      yelp ghelp:gcalctool

  If you want to open the help document at a particular section, append a question mark to the end of the URI, followed by the section id.

      yelp ghelp:user-guide?yelp-advanced-cmdline

`man:`

  Use this URI when you want to access a particular man page. You can append the section of the man page you would like to view if there are multiple man pages with the same name. The section number should be enclosed in parenthesis and therefore it may be necessary to escape the argument so that the shell does not interpret the parenthesis.

      yelp man:gcalctool

  or

      yelp 'man:intro(1)'
      yelp 'man:intro(2)'

`info:`

  Use this URI when you want to access a particular GNU info page.

      yelp info:make

#### การปรับแสดงเนื้อหาใหม่เมื่อต้องการ

Yelp Help Browser supports the Ctrl R shortcut keys, which will reload the DocBook document that is currently open. This allows developers to view changes to documents as they are made.

### ข้อมูลเพิ่มเติม

This section details some of the helper applications which Yelp Help Browser uses, and provides resources where you can get more information about Yelp Help Browser.

#### Scrollkeeper

Yelp Help Browser uses scrollkeeper to generate the table of contents for DocBook and HTML documentation, and also keep track of translations for each document.

#### เครื่องมือจัดทำเอกสารของ GNOME

The documentation distributed with GNOME uses this set of utilities for a variety of things:

- Ease translation of documents to different languages.

- Provide a set of tools to help package and install documentation into the correct location and register the documentation with scrollkeeper.

- Perform conversion from DocBook format to a format suitable for display.

Yelp Help Browser relies on GNOME XSLT Stylesheets to perform conversion from DocBook to HTML. GNOME Documentation Build Utilities are relied upon by application authors to install and register documentation within the help system.

#### โฮมเพจและเมลลิงลิสต์

For further information on Yelp Help Browser, please visit the Documentation Project homepage, http://live.gnome.org/Yelp, or subscribe to the mailing list, gnome-doc-devel-list@gnome.org.

### การเข้าร่วมกับโครงการเอกสาร GNOME

If you are interesting in helping produce and update documentation for the GNOME project, please visit the Documentation Project homepage: http://live.gnome.org/DocumentationProject