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<h1 class="title">Monitors</h1>
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<ul>
<li><a href="#allegro_monitor_info">ALLEGRO_MONITOR_INFO</a></li>
<li><a href="#al_get_new_display_adapter">al_get_new_display_adapter</a></li>
<li><a href="#al_set_new_display_adapter">al_set_new_display_adapter</a></li>
<li><a href="#al_get_monitor_info">al_get_monitor_info</a></li>
<li><a href="#al_get_num_video_adapters">al_get_num_video_adapters</a></li>
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<p>These functions are declared in the main Allegro header file:</p>
<pre><code>#include <allegro5/allegro.h></code></pre>
<h1 id="allegro_monitor_info"><a href="#allegro_monitor_info">ALLEGRO_MONITOR_INFO</a></h1>
<pre><code>typedef struct ALLEGRO_MONITOR_INFO</code></pre>
<p>Describes a monitors size and position relative to other monitors. x1, y1 will be 0, 0 on the primary display. Other monitors can have negative values if they are to the left or above the primary display.</p>
<pre><code>typedef struct ALLEGRO_MONITOR_INFO
{
int x1;
int y1;
int x2;
int y2;
} ALLEGRO_MONITOR_INFO;</code></pre>
<p>See also: <a href="monitor.html#al_get_monitor_info">al_get_monitor_info</a></p>
<h1 id="al_get_new_display_adapter"><a href="#al_get_new_display_adapter">al_get_new_display_adapter</a></h1>
<pre><code>int al_get_new_display_adapter(void)</code></pre>
<p>Gets the video adapter index where new displays will be created by the calling thread, if previously set with <a href="monitor.html#al_set_new_display_adapter">al_set_new_display_adapter</a>. Otherwise returns <code>ALLEGRO_DEFAULT_DISPLAY_ADAPTER</code>.</p>
<p>See also: <a href="monitor.html#al_set_new_display_adapter">al_set_new_display_adapter</a></p>
<h1 id="al_set_new_display_adapter"><a href="#al_set_new_display_adapter">al_set_new_display_adapter</a></h1>
<pre><code>void al_set_new_display_adapter(int adapter)</code></pre>
<p>Sets the adapter to use for new displays created by the calling thread. The adapter has a monitor attached to it. Information about the monitor can be gotten using <a href="monitor.html#al_get_num_video_adapters">al_get_num_video_adapters</a> and <a href="monitor.html#al_get_monitor_info">al_get_monitor_info</a>.</p>
<p>To return to the default behaviour, pass <code>ALLEGRO_DEFAULT_DISPLAY_ADAPTER</code>.</p>
<p>See also: <a href="monitor.html#al_get_num_video_adapters">al_get_num_video_adapters</a>, <a href="monitor.html#al_get_monitor_info">al_get_monitor_info</a></p>
<h1 id="al_get_monitor_info"><a href="#al_get_monitor_info">al_get_monitor_info</a></h1>
<pre><code>bool al_get_monitor_info(int adapter, ALLEGRO_MONITOR_INFO *info)</code></pre>
<p>Get information about a monitor's position on the desktop. adapter is a number from 0 to al_get_num_video_adapters()-1.</p>
<p>Returns true on success, false on failure.</p>
<p>See also: <a href="monitor.html#allegro_monitor_info">ALLEGRO_MONITOR_INFO</a>, <a href="monitor.html#al_get_num_video_adapters">al_get_num_video_adapters</a></p>
<h1 id="al_get_num_video_adapters"><a href="#al_get_num_video_adapters">al_get_num_video_adapters</a></h1>
<pre><code>int al_get_num_video_adapters(void)</code></pre>
<p>Get the number of video "adapters" attached to the computer. Each video card attached to the computer counts as one or more adapters. An adapter is thus really a video port that can have a monitor connected to it.</p>
<p>See also: <a href="monitor.html#al_get_monitor_info">al_get_monitor_info</a></p>
<p class="timestamp">
Allegro version 5.0.10
- Last updated: 2013-06-16 03:32:10 UTC
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