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<title>Jack2: Controlling error/information output</title>
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<div id="projectname">Jack2 <span id="projectnumber">1.9.7</span></div>
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<a href="#func-members">Functions</a> |
<a href="#var-members">Variables</a> </div>
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<h1>Controlling error/information output</h1> </div>
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Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__ErrorOutput.html#ga550faaef2bb17b03b0068fe094e7b92f">jack_set_error_function</a> (void(*func)(const char *)) JACK_OPTIONAL_WEAK_EXPORT</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__ErrorOutput.html#ga1555b7b4ae4056a42c70a3fa278ae17f">jack_set_info_function</a> (void(*func)(const char *)) JACK_OPTIONAL_WEAK_EXPORT</td></tr>
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Variables</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__ErrorOutput.html#gadabaab075f11a7149f8bc3143d638780">jack_error_callback</a> )(const char *msg) JACK_OPTIONAL_WEAK_EXPORT</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__ErrorOutput.html#ga4fd590171478e9ef1c0686c8911041b7">jack_info_callback</a> )(const char *msg) JACK_OPTIONAL_WEAK_EXPORT</td></tr>
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<hr/><h2>Function Documentation</h2>
<a class="anchor" id="ga550faaef2bb17b03b0068fe094e7b92f"></a><!-- doxytag: member="jack.h::jack_set_error_function" ref="ga550faaef2bb17b03b0068fe094e7b92f" args="(void(*func)(const char *)) JACK_OPTIONAL_WEAK_EXPORT" -->
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<td class="memname">void jack_set_error_function </td>
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<td class="paramtype">void(*)(const char *) </td>
<td class="paramname"><em>func</em></td><td>)</td>
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<p>Set the <a class="el" href="group__ErrorOutput.html#gadabaab075f11a7149f8bc3143d638780">jack_error_callback</a> for error message display. Set it to NULL to restore default_jack_error_callback function.</p>
<p>The JACK library provides two built-in callbacks for this purpose: default_jack_error_callback() and silent_jack_error_callback(). </p>
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<a class="anchor" id="ga1555b7b4ae4056a42c70a3fa278ae17f"></a><!-- doxytag: member="jack.h::jack_set_info_function" ref="ga1555b7b4ae4056a42c70a3fa278ae17f" args="(void(*func)(const char *)) JACK_OPTIONAL_WEAK_EXPORT" -->
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<td class="memname">void jack_set_info_function </td>
<td>(</td>
<td class="paramtype">void(*)(const char *) </td>
<td class="paramname"><em>func</em></td><td>)</td>
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<p>Set the <a class="el" href="group__ErrorOutput.html#ga4fd590171478e9ef1c0686c8911041b7">jack_info_callback</a> for info message display. Set it to NULL to restore default_jack_info_callback function.</p>
<p>The JACK library provides two built-in callbacks for this purpose: default_jack_info_callback() and silent_jack_info_callback(). </p>
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<hr/><h2>Variable Documentation</h2>
<a class="anchor" id="gadabaab075f11a7149f8bc3143d638780"></a><!-- doxytag: member="jack.h::jack_error_callback" ref="gadabaab075f11a7149f8bc3143d638780" args=")(const char *msg) JACK_OPTIONAL_WEAK_EXPORT" -->
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<td class="memname">void(* <a class="el" href="group__ErrorOutput.html#gadabaab075f11a7149f8bc3143d638780">jack_error_callback</a>)(const char *msg) JACK_OPTIONAL_WEAK_EXPORT</td>
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<p>Display JACK error message.</p>
<p>Set via <a class="el" href="group__ErrorOutput.html#ga550faaef2bb17b03b0068fe094e7b92f">jack_set_error_function()</a>, otherwise a JACK-provided default will print <em>msg</em> (plus a newline) to stderr.</p>
<dl><dt><b>Parameters:</b></dt><dd>
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<tr><td class="paramname">msg</td><td>error message text (no newline at end). </td></tr>
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<p>Definition at line <a class="el" href="JackError_8cpp_source.html#l00135">135</a> of file <a class="el" href="JackError_8cpp_source.html">JackError.cpp</a>.</p>
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<a class="anchor" id="ga4fd590171478e9ef1c0686c8911041b7"></a><!-- doxytag: member="jack.h::jack_info_callback" ref="ga4fd590171478e9ef1c0686c8911041b7" args=")(const char *msg) JACK_OPTIONAL_WEAK_EXPORT" -->
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<td class="memname">void(* <a class="el" href="group__ErrorOutput.html#ga4fd590171478e9ef1c0686c8911041b7">jack_info_callback</a>)(const char *msg) JACK_OPTIONAL_WEAK_EXPORT</td>
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<p>Display JACK info message.</p>
<p>Set via <a class="el" href="group__ErrorOutput.html#ga1555b7b4ae4056a42c70a3fa278ae17f">jack_set_info_function()</a>, otherwise a JACK-provided default will print <em>msg</em> (plus a newline) to stdout.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">msg</td><td>info message text (no newline at end). </td></tr>
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</dd>
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<p>Definition at line <a class="el" href="JackError_8cpp_source.html#l00136">136</a> of file <a class="el" href="JackError_8cpp_source.html">JackError.cpp</a>.</p>
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