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<title>NVVideoCaptureUtil (LWJGL API)</title>
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<div class="subTitle">org.lwjgl.opengl</div>
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<h2 title="Class NVVideoCaptureUtil" class="title">Class NVVideoCaptureUtil</h2>
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<li>java.lang.Object</li>
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<li>org.lwjgl.opengl.NVVideoCaptureUtil</li>
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<pre>public final class <span class="strong">NVVideoCaptureUtil</span>
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extends java.lang.Object</pre>
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<div class="block">This class exposes the platform specific functionality present in the
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NV_video_capture extension.</div>
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<dl><dt><span class="strong">Since:</span></dt>
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<dd>20/5/2011</dd>
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<dt><span class="strong">Author:</span></dt>
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<dd>Spasi</dd></dl>
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<h3>Method Summary</h3>
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<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
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<caption><span>Methods</span><span class="tabEnd"> </span></caption>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colLast" scope="col">Method and Description</th>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>static boolean</code></td>
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<td class="colLast"><code><strong><a href="../../../org/lwjgl/opengl/NVVideoCaptureUtil.html#glBindVideoCaptureDeviceNV(int, long)">glBindVideoCaptureDeviceNV</a></strong>(int video_slot,
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long device)</code>
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<div class="block">After successfully locking a video capture device, use this method to bind it
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to the capture slot specified in the current context.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>static int</code></td>
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<td class="colLast"><code><strong><a href="../../../org/lwjgl/opengl/NVVideoCaptureUtil.html#glEnumerateVideoCaptureDevicesNV(java.nio.LongBuffer)">glEnumerateVideoCaptureDevicesNV</a></strong>(java.nio.LongBuffer devices)</code>
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<div class="block">Enumerate the available video capture devices.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>static boolean</code></td>
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<td class="colLast"><code><strong><a href="../../../org/lwjgl/opengl/NVVideoCaptureUtil.html#glLockVideoCaptureDeviceNV(long)">glLockVideoCaptureDeviceNV</a></strong>(long device)</code>
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<div class="block">To lock a video capture device to a display connection, use this method.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>static boolean</code></td>
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<td class="colLast"><code><strong><a href="../../../org/lwjgl/opengl/NVVideoCaptureUtil.html#glQueryVideoCaptureDeviceNV(long, int, java.nio.IntBuffer)">glQueryVideoCaptureDeviceNV</a></strong>(long device,
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int attribute,
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java.nio.IntBuffer value)</code>
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<div class="block">Use this method to query the unique ID of the physical device backing a
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video capture device handle.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>static boolean</code></td>
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<td class="colLast"><code><strong><a href="../../../org/lwjgl/opengl/NVVideoCaptureUtil.html#glReleaseVideoCaptureDeviceNV(long)">glReleaseVideoCaptureDeviceNV</a></strong>(long device)</code>
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<div class="block">Use this method when finished capturing data on a locked video capture device
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to unlock it.</div>
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</td>
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<h3>Methods inherited from class java.lang.Object</h3>
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<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h4>glBindVideoCaptureDeviceNV</h4>
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<pre>public static boolean glBindVideoCaptureDeviceNV(int video_slot,
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long device)</pre>
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<div class="block">After successfully locking a video capture device, use this method to bind it
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to the capture slot specified in the current context. This method is the cross-
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platform equivalent of glXBindVideoCaptureDeviceNV and wglBindVideoCaptureDeviceNV.</div>
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<dl><dt><span class="strong">Parameters:</span></dt><dd><code>video_slot</code> - the video slot</dd><dd><code>device</code> - the video capture device</dd>
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<dt><span class="strong">Returns:</span></dt><dd>true if the binding was successful</dd></dl>
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<h4>glEnumerateVideoCaptureDevicesNV</h4>
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<pre>public static int glEnumerateVideoCaptureDevicesNV(java.nio.LongBuffer devices)</pre>
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<div class="block">Enumerate the available video capture devices. This method is the cross-platform
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equivalent of glXEnumerateVideoCaptureDevicesNV and wglEnumerateVideoCaptureDevicesNV.
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Since they are not really compatible, this method works like the WGL version. That is,
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you first call it with a null devices buffer, get the number of devices, then call it
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again with an appropriately sized buffer.</div>
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<dl><dt><span class="strong">Parameters:</span></dt><dd><code>devices</code> - the buffer to store devices in</dd>
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<dt><span class="strong">Returns:</span></dt><dd>the number of available video capture devices</dd></dl>
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<h4>glLockVideoCaptureDeviceNV</h4>
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<pre>public static boolean glLockVideoCaptureDeviceNV(long device)</pre>
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<div class="block">To lock a video capture device to a display connection, use this method.
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Before using a video capture device, it must be locked. Once a
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video capture device is locked by a process, no other process can
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lock a video capture device with the same unique ID until the lock
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is released or the process ends.</div>
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<dl><dt><span class="strong">Parameters:</span></dt><dd><code>device</code> - the device to lock</dd>
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<dt><span class="strong">Returns:</span></dt><dd>true if the lock was successful</dd></dl>
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<h4>glQueryVideoCaptureDeviceNV</h4>
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<pre>public static boolean glQueryVideoCaptureDeviceNV(long device,
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int attribute,
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java.nio.IntBuffer value)</pre>
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<div class="block">Use this method to query the unique ID of the physical device backing a
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video capture device handle.</div>
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<dl><dt><span class="strong">Parameters:</span></dt><dd><code>device</code> - the device</dd><dd><code>attribute</code> - the attribute to query</dd><dd><code>value</code> - the buffer to store the value in</dd>
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<dt><span class="strong">Returns:</span></dt><dd>true if the query was successful</dd></dl>
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<h4>glReleaseVideoCaptureDeviceNV</h4>
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<pre>public static boolean glReleaseVideoCaptureDeviceNV(long device)</pre>
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<div class="block">Use this method when finished capturing data on a locked video capture device
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to unlock it.</div>
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<dl><dt><span class="strong">Parameters:</span></dt><dd><code>device</code> - the device</dd>
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<dt><span class="strong">Returns:</span></dt><dd>true if the device was unlocked successfully</dd></dl>
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