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<div class="refentry" lang="en">
<a name="libgimp-gimpprogress"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle">gimpprogress</span></h2>
<p>gimpprogress &#8212; Functions for embedding the progress bar into a plug-in's GUI.</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<pre class="synopsis">
<a href="libgimp-gimpprogress.html#GimpProgressVtable">GimpProgressVtable</a>;
gboolean <a href="libgimp-gimpprogress.html#gimp-progress-init">gimp_progress_init</a> (const gchar *message);
gboolean <a href="libgimp-gimpprogress.html#gimp-progress-init-printf">gimp_progress_init_printf</a> (const gchar *format,
...);
gboolean <a href="libgimp-gimpprogress.html#gimp-progress-update">gimp_progress_update</a> (gdouble percentage);
gboolean <a href="libgimp-gimpprogress.html#gimp-progress-pulse">gimp_progress_pulse</a> (void);
gboolean <a href="libgimp-gimpprogress.html#gimp-progress-set-text">gimp_progress_set_text</a> (const gchar *message);
gboolean <a href="libgimp-gimpprogress.html#gimp-progress-set-text-printf">gimp_progress_set_text_printf</a> (const gchar *format,
...);
gpointer <a href="libgimp-gimpprogress.html#gimp-progress-uninstall">gimp_progress_uninstall</a> (const gchar *progress_callback);
gboolean <a href="libgimp-gimpprogress.html#gimp-progress-cancel">gimp_progress_cancel</a> (const gchar *progress_callback);
gint <a href="libgimp-gimpprogress.html#gimp-progress-get-window-handle">gimp_progress_get_window_handle</a> (void);
void (<a href="libgimp-gimpprogress.html#GimpProgressStartCallback">*GimpProgressStartCallback</a>) (const gchar *message,
gboolean cancelable,
gpointer user_data);
void (<a href="libgimp-gimpprogress.html#GimpProgressEndCallback">*GimpProgressEndCallback</a>) (gpointer user_data);
void (<a href="libgimp-gimpprogress.html#GimpProgressTextCallback">*GimpProgressTextCallback</a>) (const gchar *message,
gpointer user_data);
void (<a href="libgimp-gimpprogress.html#GimpProgressValueCallback">*GimpProgressValueCallback</a>) (gdouble percentage,
gpointer user_data);
const gchar* <a href="libgimp-gimpprogress.html#gimp-progress-install-vtable">gimp_progress_install_vtable</a> (const <a href="libgimp-gimpprogress.html#GimpProgressVtable">GimpProgressVtable</a> *vtable,
gpointer user_data);
const gchar* <a href="libgimp-gimpprogress.html#gimp-progress-install">gimp_progress_install</a> (<a href="libgimp-gimpprogress.html#GimpProgressStartCallback">GimpProgressStartCallback</a> start_callback,
<a href="libgimp-gimpprogress.html#GimpProgressEndCallback">GimpProgressEndCallback</a> end_callback,
<a href="libgimp-gimpprogress.html#GimpProgressTextCallback">GimpProgressTextCallback</a> text_callback,
<a href="libgimp-gimpprogress.html#GimpProgressValueCallback">GimpProgressValueCallback</a> value_callback,
gpointer user_data);
</pre>
</div>
<div class="refsect1" lang="en">
<a name="id2560721"></a><h2>Description</h2>
<p>
Functions for embedding the progress bar into a plug-in's GUI.
</p>
</div>
<div class="refsect1" lang="en">
<a name="id2560734"></a><h2>Details</h2>
<div class="refsect2" lang="en">
<a name="id2560740"></a><h3>
<a name="GimpProgressVtable"></a>GimpProgressVtable</h3>
<a class="indexterm" name="id2560750"></a><pre class="programlisting">typedef struct {
void (* start) (const gchar *message,
gboolean cancelable,
gpointer user_data);
void (* end) (gpointer user_data);
void (* set_text) (const gchar *message,
gpointer user_data);
void (* set_value) (gdouble percentage,
gpointer user_data);
void (* pulse) (gpointer user_data);
guint32 (* get_window) (gpointer user_data);
/* Padding for future expansion. Must be initialized with NULL! */
void (* _gimp_reserved1) (void);
void (* _gimp_reserved2) (void);
void (* _gimp_reserved3) (void);
void (* _gimp_reserved4) (void);
void (* _gimp_reserved5) (void);
void (* _gimp_reserved6) (void);
void (* _gimp_reserved7) (void);
void (* _gimp_reserved8) (void);
} GimpProgressVtable;
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2568162"></a><h3>
<a name="gimp-progress-init"></a>gimp_progress_init ()</h3>
<a class="indexterm" name="id2568172"></a><pre class="programlisting">gboolean gimp_progress_init (const gchar *message);</pre>
<p>
Initializes the progress bar for the current plug-in.
</p>
<p>
Initializes the progress bar for the current plug-in. It is only
valid to call this procedure from a plug-in.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>message</code></em>&#160;:</span></td>
<td> Message to use in the progress dialog.
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> TRUE on success.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2568237"></a><h3>
<a name="gimp-progress-init-printf"></a>gimp_progress_init_printf ()</h3>
<a class="indexterm" name="id2568246"></a><pre class="programlisting">gboolean gimp_progress_init_printf (const gchar *format,
...);</pre>
<p>
Initializes the progress bar for the current plug-in.
</p>
<p>
Initializes the progress bar for the current plug-in. It is only
valid to call this procedure from a plug-in.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>format</code></em>&#160;:</span></td>
<td> a standard <code class="function">printf()</code> format string
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>...</code></em>&#160;:</span></td>
<td> arguments for <em class="parameter"><code>format</code></em>
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> <code class="literal">TRUE</code> on success.
</td>
</tr>
</tbody>
</table></div>
<p>Since GIMP 2.4
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2568353"></a><h3>
<a name="gimp-progress-update"></a>gimp_progress_update ()</h3>
<a class="indexterm" name="id2568362"></a><pre class="programlisting">gboolean gimp_progress_update (gdouble percentage);</pre>
<p>
Updates the progress bar for the current plug-in.
</p>
<p>
Updates the progress bar for the current plug-in. It is only valid
to call this procedure from a plug-in.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>percentage</code></em>&#160;:</span></td>
<td> Percentage of progress completed which must be between 0.0 and 1.0.
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> TRUE on success.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2558123"></a><h3>
<a name="gimp-progress-pulse"></a>gimp_progress_pulse ()</h3>
<a class="indexterm" name="id2558133"></a><pre class="programlisting">gboolean gimp_progress_pulse (void);</pre>
<p>
Pulses the progress bar for the current plug-in.
</p>
<p>
Updates the progress bar for the current plug-in. It is only valid
to call this procedure from a plug-in. Use this function instead of
<a href="libgimp-gimpprogress.html#gimp-progress-update"><code class="function">gimp_progress_update()</code></a> if you cannot tell how much progress has been
made. This usually causes the the progress bar to enter \"activity
mode\", where a block bounces back and forth.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> TRUE on success.
</td>
</tr></tbody>
</table></div>
<p>Since GIMP 2.4
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2558195"></a><h3>
<a name="gimp-progress-set-text"></a>gimp_progress_set_text ()</h3>
<a class="indexterm" name="id2558204"></a><pre class="programlisting">gboolean gimp_progress_set_text (const gchar *message);</pre>
<p>
Changes the text in the progress bar for the current plug-in.
</p>
<p>
This function allows to change the text in the progress bar for the
current plug-in. Unlike <a href="libgimp-gimpprogress.html#gimp-progress-init"><code class="function">gimp_progress_init()</code></a> it does not change the
displayed value.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>message</code></em>&#160;:</span></td>
<td> Message to use in the progress dialog.
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> TRUE on success.
</td>
</tr>
</tbody>
</table></div>
<p>Since GIMP 2.4
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2558283"></a><h3>
<a name="gimp-progress-set-text-printf"></a>gimp_progress_set_text_printf ()</h3>
<a class="indexterm" name="id2558292"></a><pre class="programlisting">gboolean gimp_progress_set_text_printf (const gchar *format,
...);</pre>
<p>
Changes the text in the progress bar for the current plug-in.
</p>
<p>
This function allows to change the text in the progress bar for the
current plug-in. Unlike <a href="libgimp-gimpprogress.html#gimp-progress-init"><code class="function">gimp_progress_init()</code></a> it does not change the
displayed value.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>format</code></em>&#160;:</span></td>
<td> a standard <code class="function">printf()</code> format string
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>...</code></em>&#160;:</span></td>
<td> arguments for <em class="parameter"><code>format</code></em>
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> <code class="literal">TRUE</code> on success.
</td>
</tr>
</tbody>
</table></div>
<p>Since GIMP 2.4
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2570942"></a><h3>
<a name="gimp-progress-uninstall"></a>gimp_progress_uninstall ()</h3>
<a class="indexterm" name="id2570951"></a><pre class="programlisting">gpointer gimp_progress_uninstall (const gchar *progress_callback);</pre>
<p>
Uninstalls a temporary progress procedure that was installed using
<a href="libgimp-gimpprogress.html#gimp-progress-install"><code class="function">gimp_progress_install()</code></a>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>progress_callback</code></em>&#160;:</span></td>
<td> the name of the temporary procedure to uninstall
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> the <em class="parameter"><code>user_data</code></em> that was passed to <a href="libgimp-gimpprogress.html#gimp-progress-install"><code class="function">gimp_progress_install()</code></a>.
</td>
</tr>
</tbody>
</table></div>
<p>Since GIMP 2.2
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2571032"></a><h3>
<a name="gimp-progress-cancel"></a>gimp_progress_cancel ()</h3>
<a class="indexterm" name="id2571040"></a><pre class="programlisting">gboolean gimp_progress_cancel (const gchar *progress_callback);</pre>
<p>
Cancels a running progress.
</p>
<p>
This function cancels the currently running progress.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>progress_callback</code></em>&#160;:</span></td>
<td> The name of the callback registered for this progress.
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> TRUE on success.
</td>
</tr>
</tbody>
</table></div>
<p>Since GIMP 2.2
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2571103"></a><h3>
<a name="gimp-progress-get-window-handle"></a>gimp_progress_get_window_handle ()</h3>
<a class="indexterm" name="id2571113"></a><pre class="programlisting">gint gimp_progress_get_window_handle (void);</pre>
<p>
Returns the native window ID of the toplevel window this plug-in's
progress is displayed in.
</p>
<p>
This function returns the native window ID of the toplevel window
this plug-in\'s progress is displayed in.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> The progress bar's toplevel window.
</td>
</tr></tbody>
</table></div>
<p>Since GIMP 2.2
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2571161"></a><h3>
<a name="GimpProgressStartCallback"></a>GimpProgressStartCallback ()</h3>
<a class="indexterm" name="id2571170"></a><pre class="programlisting">void (*GimpProgressStartCallback) (const gchar *message,
gboolean cancelable,
gpointer user_data);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">GimpProgressStartCallback</code> is deprecated and should not be used in newly-written code.</p>
</div>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>message</code></em>&#160;:</span></td>
<td>
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>cancelable</code></em>&#160;:</span></td>
<td>
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>user_data</code></em>&#160;:</span></td>
<td>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2571260"></a><h3>
<a name="GimpProgressEndCallback"></a>GimpProgressEndCallback ()</h3>
<a class="indexterm" name="id2571269"></a><pre class="programlisting">void (*GimpProgressEndCallback) (gpointer user_data);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">GimpProgressEndCallback</code> is deprecated and should not be used in newly-written code.</p>
</div>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td>
<span class="term"><em class="parameter"><code>user_data</code></em>&#160;:</span></td>
<td>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2571321"></a><h3>
<a name="GimpProgressTextCallback"></a>GimpProgressTextCallback ()</h3>
<a class="indexterm" name="id2571329"></a><pre class="programlisting">void (*GimpProgressTextCallback) (const gchar *message,
gpointer user_data);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">GimpProgressTextCallback</code> is deprecated and should not be used in newly-written code.</p>
</div>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>message</code></em>&#160;:</span></td>
<td>
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>user_data</code></em>&#160;:</span></td>
<td>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2571400"></a><h3>
<a name="GimpProgressValueCallback"></a>GimpProgressValueCallback ()</h3>
<a class="indexterm" name="id2571410"></a><pre class="programlisting">void (*GimpProgressValueCallback) (gdouble percentage,
gpointer user_data);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">GimpProgressValueCallback</code> is deprecated and should not be used in newly-written code.</p>
</div>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>percentage</code></em>&#160;:</span></td>
<td>
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>user_data</code></em>&#160;:</span></td>
<td>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2571481"></a><h3>
<a name="gimp-progress-install-vtable"></a>gimp_progress_install_vtable ()</h3>
<a class="indexterm" name="id2571491"></a><pre class="programlisting">const gchar* gimp_progress_install_vtable (const <a href="libgimp-gimpprogress.html#GimpProgressVtable">GimpProgressVtable</a> *vtable,
gpointer user_data);</pre>
<p>
</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>vtable</code></em>&#160;:</span></td>
<td> a pointer to a <em class="parameter"><code>GimpProgressVtable</code></em>.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>user_data</code></em>&#160;:</span></td>
<td> a pointer that is passed as user_data to all vtable functions.
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> the name of the temporary procedure that's been installed
</td>
</tr>
</tbody>
</table></div>
<p>Since GIMP 2.4
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2571577"></a><h3>
<a name="gimp-progress-install"></a>gimp_progress_install ()</h3>
<a class="indexterm" name="id2571585"></a><pre class="programlisting">const gchar* gimp_progress_install (<a href="libgimp-gimpprogress.html#GimpProgressStartCallback">GimpProgressStartCallback</a> start_callback,
<a href="libgimp-gimpprogress.html#GimpProgressEndCallback">GimpProgressEndCallback</a> end_callback,
<a href="libgimp-gimpprogress.html#GimpProgressTextCallback">GimpProgressTextCallback</a> text_callback,
<a href="libgimp-gimpprogress.html#GimpProgressValueCallback">GimpProgressValueCallback</a> value_callback,
gpointer user_data);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">gimp_progress_install</code> is deprecated and should not be used in newly-written code.</p>
</div>
<p>
</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>start_callback</code></em>&#160;:</span></td>
<td> the function to call when progress starts
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>end_callback</code></em>&#160;:</span></td>
<td> the function to call when progress finishes
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>text_callback</code></em>&#160;:</span></td>
<td> the function to call to change the text
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>value_callback</code></em>&#160;:</span></td>
<td> the function to call to change the value
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>user_data</code></em>&#160;:</span></td>
<td> a pointer that is returned when uninstalling the progress
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> the name of the temporary procedure that's been installed
</td>
</tr>
</tbody>
</table></div>
<p>Since GIMP 2.2
Note that since GIMP 2.4, @value_callback can be called with
negative values. This is triggered by calls to gimp_progress_pulse().
The callback should then implement a progress indicating business,
e.g. by calling gtk_progress_bar_pulse().
</p>
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