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<?xml version="1.0" encoding="utf-8"?>
<page xmlns="http://projectmallard.org/1.0/" type="topic" id="usage" xml:lang="en-GB">
<info>
<link type="guide" xref="index"/>
<desc>You can use <app>Zenity</app> to create simple dialogs that interact graphically with the user.</desc>
</info>
<title>Usage</title>
<p>
When you write scripts, you can use <app>Zenity</app> to create simple dialogs that interact graphically with the user, as follows:
</p>
<list>
<item>
<p>You can create a dialogue to obtain information from the user. For example, you can prompt the user to select a date from a calendar dialogue, or to select a file from a file selection dialogue.</p>
</item>
<item>
<p>You can create a dialogue to provide the user with information. For example, you can use a progress dialogue to indicate the current status of an operation, or use a warning message dialogue to alert the user.</p>
</item>
</list>
<p>
When the user closes the dialog, <app>Zenity</app> prints the text produced by the dialog to standard output.
</p>
<note>
<p>
When you write <app>Zenity</app> commands, ensure that you place quotation marks around each argument.
</p>
<p>For example, use:</p>
<screen>zenity --calendar --title="Holiday Planner"</screen>
<p>Do not use:</p>
<screen>zenity --calendar --title=Holiday Planner</screen>
<p>If you do not use quotation marks, you might get unexpected results.</p>
</note>
<section id="zenity-usage-mnemonics">
<title>Access Keys</title>
<p>An access key is a key that enables you to perform an action from the keyboard rather than use the mouse to choose a command from a menu or dialogue. Each access key is identified by an underlined letter on a menu or dialogue option.</p>
<p>
Some <app>Zenity</app> dialogs support the use of access keys. To specify the character to use as the access key, place an underscore before that character in the text of the dialog. The following example shows how to specify the letter 'C' as the access key:
</p>
<screen><input>"_Choose a name".</input></screen>
</section>
<section id="zenity-usage-exitcodes">
<title>Exit Codes</title>
<p>
Zenity returns the following exit codes:
</p>
<table frame="all" rules="all">
<thead>
<tr>
<td>
<p>Exit Code</p></td>
<td>
<p>Description</p></td>
</tr>
</thead>
<tbody>
<tr>
<td>
<p><var>0</var></p>
</td>
<td>
<p>The user has pressed either <gui style="button">OK</gui> or <gui style="button">Close</gui>.</p>
</td>
</tr>
<tr>
<td>
<p><var>1</var></p>
</td>
<td>
<p>The user has either pressed <gui style="button">Cancel</gui>, or used the window functions to close the dialog.</p>
</td>
</tr>
<tr>
<td>
<p><var>-1</var></p>
</td>
<td>
<p>An unexpected error has occurred.</p>
</td>
</tr>
<tr>
<td>
<p><var>5</var></p>
</td>
<td>
<p>The dialogue has been closed because the timeout has been reached.</p>
</td>
</tr>
</tbody>
</table>
</section>
<!-- ==== General Options ====== -->
<section id="zenity-usage-general-options">
<title>General Options</title>
<p>
All Zenity dialogs support the following general options:
</p>
<terms>
<item>
<title><cmd>--title</cmd>=<var>title</var></title>
<p>Specifies the title of a dialogue.</p>
</item>
<item>
<title><cmd>--window-icon</cmd>=<var>icon_path</var></title>
<p>Specifies the icon that is displayed in the window frame of the dialogue. There are 4 stock icons also available by providing the following keywords - 'info', 'warning', 'question' and 'error'.</p>
</item>
<item>
<title><cmd>--width</cmd>=<var>width</var></title>
<p>Specifies the width of the dialogue.</p>
</item>
<item>
<title><cmd>--height</cmd>=<var>height</var></title>
<p>Specifies the height of the dialogue.</p>
</item>
<item>
<title><cmd>--timeout</cmd>=<var>timeout</var></title>
<p>Specifies the timeout in seconds after which the dialogue is closed.</p>
</item>
</terms>
</section>
<!-- ==== Miscellaneous Options ====== -->
<section id="zenity-help-options">
<title>Help Options</title>
<p>
Zenity provides the following help options:
</p>
<terms>
<item>
<title><cmd>--help</cmd></title>
<p>Displays shortened help text.</p>
</item>
<item>
<title><cmd>--help-all</cmd></title>
<p>Displays full help text for all dialogues.</p>
</item>
<item>
<title><cmd>--help-general</cmd></title>
<p>Displays help text for general dialogue options.</p>
</item>
<item>
<title><cmd>--help-calendar</cmd></title>
<p>Displays help text for calendar dialogue options.</p>
</item>
<item>
<title><cmd>--help-entry</cmd></title>
<p>Displays help text for text entry dialogue options.</p>
</item>
<item>
<title><cmd>--help-error</cmd></title>
<p>Displays help text for error dialogue options.</p>
</item>
<item>
<title><cmd>--help-info</cmd></title>
<p>Displays help text for information dialogue options.</p>
</item>
<item>
<title><cmd>--help-file-selection</cmd></title>
<p>Displays help text for file selection dialogue options.</p>
</item>
<item>
<title><cmd>--help-list</cmd></title>
<p>Displays help text for list dialogue options.</p>
</item>
<item>
<title><cmd>--help-notification</cmd></title>
<p>Displays help text for notification icon options.</p>
</item>
<item>
<title><cmd>--help-progress</cmd></title>
<p>Displays help text for progress dialogue options.</p>
</item>
<item>
<title><cmd>--help-question</cmd></title>
<p>Displays help text for question dialogue options.</p>
</item>
<item>
<title><cmd>--help-warning</cmd></title>
<p>Displays help text for warning dialogue options.</p>
</item>
<item>
<title><cmd>--help-text-info</cmd></title>
<p>Displays help for text information dialogue options.</p>
</item>
<item>
<title><cmd>--help-misc</cmd></title>
<p>Displays help for miscellaneous options.</p>
</item>
<item>
<title><cmd>--help-gtk</cmd></title>
<p>Displays help for GTK+ options.</p>
</item>
</terms>
</section>
<!-- ==== Miscellaneous Options ====== -->
<section id="zenity-miscellaneous-options">
<title>Miscellaneous Options</title>
<p>
Zenity also provides the following miscellaneous options:
</p>
<terms>
<item>
<title><cmd>--about</cmd></title>
<p>Displays the <gui>About Zenity</gui> dialog, which contains Zenity version information, copyright information, and developer information.</p>
</item>
<item>
<title><cmd>--version</cmd></title>
<p>Displays the version number of Zenity.</p>
</item>
</terms>
</section>
<!-- ==== GTK+ Options ====== -->
<section id="zenity-gtk-options">
<title>GTK+ Options</title>
<p>
Zenity supports the standard GTK+ options. For more information about the GTK+ options, execute the <cmd>zenity --help-gtk</cmd> command.
</p>
</section>
<!-- ==== Environment variables ==== -->
<section id="zenity-environment-variables">
<title>Environment Variables</title>
<p>
Normally, Zenity detects the terminal window from which it was launched
and keeps itself above that window. This behavior can be disabled by
unsetting the <var>WINDOWID</var> environment variable.
</p>
</section>
</page>
|
