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<title>libnx: include/switch/display/native_window.h File Reference</title>
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<div id="projectname">libnx<span id="projectnumber"> v4.9.0</span>
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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_42bea3d40f1f1694e41a8f3166c98108.html">switch</a></li><li class="navelem"><a class="el" href="dir_2b5b553157a94351151a308cd797ea35.html">display</a></li> </ul>
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<a href="#nested-classes">Data Structures</a> </div>
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<div class="headertitle"><div class="title">native_window.h File Reference</div></div>
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<p>Native window (<a class="el" href="structNWindow.html" title="Native window structure.">NWindow</a>) wrapper object, used for presenting images to the display (or other sinks).
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<a href="#details">More...</a></p>
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<div class="textblock"><code>#include "<a class="el" href="mutex_8h_source.html">../kernel/mutex.h</a>"</code><br />
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<code>#include "<a class="el" href="event_8h_source.html">../kernel/event.h</a>"</code><br />
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<code>#include "<a class="el" href="vi_8h_source.html">../services/vi.h</a>"</code><br />
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<code>#include "../nvidia/graphic_buffer.h"</code><br />
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<code>#include "<a class="el" href="display_2types_8h_source.html">types.h</a>"</code><br />
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<code>#include "binder.h"</code><br />
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<code>#include "buffer_producer.h"</code><br />
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</div>
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<p><a href="native__window_8h_source.html">Go to the source code of this file.</a></p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="nested-classes" name="nested-classes"></a>
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Data Structures</h2></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structNWindow.html">NWindow</a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Native window structure. <a href="structNWindow.html#details">More...</a><br /></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
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Functions</h2></td></tr>
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<tr><td colspan="2"><div class="groupHeader">Basic functions</div></td></tr>
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<tr class="memitem:afe7987b654e5dd06f7fdb00c9b4cb79b" id="r_afe7987b654e5dd06f7fdb00c9b4cb79b"><td class="memItemLeft" align="right" valign="top"><a id="afe7987b654e5dd06f7fdb00c9b4cb79b" name="afe7987b654e5dd06f7fdb00c9b4cb79b"></a>
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bool </td><td class="memItemRight" valign="bottom"><b>nwindowIsValid</b> (<a class="el" href="structNWindow.html">NWindow</a> *nw)</td></tr>
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<tr class="memdesc:afe7987b654e5dd06f7fdb00c9b4cb79b"><td class="mdescLeft"> </td><td class="mdescRight">Checks whether a pointer refers to a valid <a class="el" href="structNWindow.html">NWindow</a> object. <br /></td></tr>
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<tr class="separator:afe7987b654e5dd06f7fdb00c9b4cb79b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a15a1695c9e19f666b396ce29a68891e9" id="r_a15a1695c9e19f666b396ce29a68891e9"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structNWindow.html">NWindow</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="native__window_8h.html#a15a1695c9e19f666b396ce29a68891e9">nwindowGetDefault</a> (void)</td></tr>
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<tr class="memdesc:a15a1695c9e19f666b396ce29a68891e9"><td class="mdescLeft"> </td><td class="mdescRight">Retrieves the default <a class="el" href="structNWindow.html">NWindow</a> object. <br /></td></tr>
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<tr class="separator:a15a1695c9e19f666b396ce29a68891e9"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:abd122ebc7b9dbde934f19a2c8c3d109c" id="r_abd122ebc7b9dbde934f19a2c8c3d109c"><td class="memItemLeft" align="right" valign="top"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="native__window_8h.html#abd122ebc7b9dbde934f19a2c8c3d109c">nwindowCreate</a> (<a class="el" href="structNWindow.html">NWindow</a> *nw, <a class="el" href="structService.html">Service</a> *binder_session, <a class="el" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> binder_id, bool producer_controlled_by_app)</td></tr>
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<tr class="memdesc:abd122ebc7b9dbde934f19a2c8c3d109c"><td class="mdescLeft"> </td><td class="mdescRight">Creates a <a class="el" href="structNWindow.html">NWindow</a>. <br /></td></tr>
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<tr class="separator:abd122ebc7b9dbde934f19a2c8c3d109c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a29f696363cff25799fb0c912be66b59a" id="r_a29f696363cff25799fb0c912be66b59a"><td class="memItemLeft" align="right" valign="top"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="native__window_8h.html#a29f696363cff25799fb0c912be66b59a">nwindowCreateFromLayer</a> (<a class="el" href="structNWindow.html">NWindow</a> *nw, const <a class="el" href="structViLayer.html">ViLayer</a> *layer)</td></tr>
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<tr class="memdesc:a29f696363cff25799fb0c912be66b59a"><td class="mdescLeft"> </td><td class="mdescRight">Creates a <a class="el" href="structNWindow.html">NWindow</a> operating on a <a class="el" href="structViLayer.html">ViLayer</a>. <br /></td></tr>
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<tr class="separator:a29f696363cff25799fb0c912be66b59a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a67b0409f88787eec2e4c4438b8f613fd" id="r_a67b0409f88787eec2e4c4438b8f613fd"><td class="memItemLeft" align="right" valign="top"><a id="a67b0409f88787eec2e4c4438b8f613fd" name="a67b0409f88787eec2e4c4438b8f613fd"></a>
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void </td><td class="memItemRight" valign="bottom"><b>nwindowClose</b> (<a class="el" href="structNWindow.html">NWindow</a> *nw)</td></tr>
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<tr class="memdesc:a67b0409f88787eec2e4c4438b8f613fd"><td class="mdescLeft"> </td><td class="mdescRight">Closes a <a class="el" href="structNWindow.html">NWindow</a>, freeing all resources associated with it. <br /></td></tr>
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<tr class="separator:a67b0409f88787eec2e4c4438b8f613fd"><td class="memSeparator" colspan="2"> </td></tr>
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<tr><td colspan="2"><div class="groupHeader">Window configuration</div></td></tr>
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<tr class="memitem:ac9bde326027224f3a78325aeb905be55" id="r_ac9bde326027224f3a78325aeb905be55"><td class="memItemLeft" align="right" valign="top"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="native__window_8h.html#ac9bde326027224f3a78325aeb905be55">nwindowGetDimensions</a> (<a class="el" href="structNWindow.html">NWindow</a> *nw, <a class="el" href="types_8h.html#afaa62991928fb9fb18ff0db62a040aba">u32</a> *out_width, <a class="el" href="types_8h.html#afaa62991928fb9fb18ff0db62a040aba">u32</a> *out_height)</td></tr>
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<tr class="memdesc:ac9bde326027224f3a78325aeb905be55"><td class="mdescLeft"> </td><td class="mdescRight">Retrieves the dimensions of a <a class="el" href="structNWindow.html">NWindow</a>. <br /></td></tr>
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<tr class="separator:ac9bde326027224f3a78325aeb905be55"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:afaf6cc9b314a52cb40d5f54cc1325ee9" id="r_afaf6cc9b314a52cb40d5f54cc1325ee9"><td class="memItemLeft" align="right" valign="top"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="native__window_8h.html#afaf6cc9b314a52cb40d5f54cc1325ee9">nwindowSetDimensions</a> (<a class="el" href="structNWindow.html">NWindow</a> *nw, <a class="el" href="types_8h.html#afaa62991928fb9fb18ff0db62a040aba">u32</a> width, <a class="el" href="types_8h.html#afaa62991928fb9fb18ff0db62a040aba">u32</a> height)</td></tr>
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<tr class="memdesc:afaf6cc9b314a52cb40d5f54cc1325ee9"><td class="mdescLeft"> </td><td class="mdescRight">Sets the dimensions of a <a class="el" href="structNWindow.html">NWindow</a>. <br /></td></tr>
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<tr class="separator:afaf6cc9b314a52cb40d5f54cc1325ee9"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:acd960d92cccfd440771fa31a32563bac" id="r_acd960d92cccfd440771fa31a32563bac"><td class="memItemLeft" align="right" valign="top"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="native__window_8h.html#acd960d92cccfd440771fa31a32563bac">nwindowSetCrop</a> (<a class="el" href="structNWindow.html">NWindow</a> *nw, <a class="el" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> left, <a class="el" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> top, <a class="el" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> right, <a class="el" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> bottom)</td></tr>
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<tr class="memdesc:acd960d92cccfd440771fa31a32563bac"><td class="mdescLeft"> </td><td class="mdescRight">Configures the crop applied to images presented through a <a class="el" href="structNWindow.html">NWindow</a>. <br /></td></tr>
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<tr class="separator:acd960d92cccfd440771fa31a32563bac"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a0c3a6f914d37943eee1e62b97410d13b" id="r_a0c3a6f914d37943eee1e62b97410d13b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="native__window_8h.html#a0c3a6f914d37943eee1e62b97410d13b">nwindowSetTransform</a> (<a class="el" href="structNWindow.html">NWindow</a> *nw, <a class="el" href="types_8h.html#afaa62991928fb9fb18ff0db62a040aba">u32</a> transform)</td></tr>
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<tr class="memdesc:a0c3a6f914d37943eee1e62b97410d13b"><td class="mdescLeft"> </td><td class="mdescRight">Configures the transformation applied to images presented through a <a class="el" href="structNWindow.html">NWindow</a>. <br /></td></tr>
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<tr class="separator:a0c3a6f914d37943eee1e62b97410d13b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aaf4f7c623f93a0fafe570c69891af6a3" id="r_aaf4f7c623f93a0fafe570c69891af6a3"><td class="memItemLeft" align="right" valign="top"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="native__window_8h.html#aaf4f7c623f93a0fafe570c69891af6a3">nwindowSetSwapInterval</a> (<a class="el" href="structNWindow.html">NWindow</a> *nw, <a class="el" href="types_8h.html#afaa62991928fb9fb18ff0db62a040aba">u32</a> swap_interval)</td></tr>
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<tr class="memdesc:aaf4f7c623f93a0fafe570c69891af6a3"><td class="mdescLeft"> </td><td class="mdescRight">Configures the swap interval of a <a class="el" href="structNWindow.html">NWindow</a>. <br /></td></tr>
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<tr class="separator:aaf4f7c623f93a0fafe570c69891af6a3"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a45abc33079a46379271ed00ec00aa83e" id="r_a45abc33079a46379271ed00ec00aa83e"><td class="memItemLeft" align="right" valign="top"><a id="a45abc33079a46379271ed00ec00aa83e" name="a45abc33079a46379271ed00ec00aa83e"></a>
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static bool </td><td class="memItemRight" valign="bottom"><b>nwindowIsConsumerRunningBehind</b> (<a class="el" href="structNWindow.html">NWindow</a> *nw)</td></tr>
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<tr class="memdesc:a45abc33079a46379271ed00ec00aa83e"><td class="mdescLeft"> </td><td class="mdescRight">Checks whether the consumer of a <a class="el" href="structNWindow.html">NWindow</a> is running behind. <br /></td></tr>
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<tr class="separator:a45abc33079a46379271ed00ec00aa83e"><td class="memSeparator" colspan="2"> </td></tr>
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<tr><td colspan="2"><div class="groupHeader">Buffer configuration and presentation</div></td></tr>
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<tr class="memitem:a7cada6db01ff0c1e31e45a7ec66ccb91" id="r_a7cada6db01ff0c1e31e45a7ec66ccb91"><td class="memItemLeft" align="right" valign="top"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="native__window_8h.html#a7cada6db01ff0c1e31e45a7ec66ccb91">nwindowConfigureBuffer</a> (<a class="el" href="structNWindow.html">NWindow</a> *nw, <a class="el" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> slot, <a class="el" href="structNvGraphicBuffer.html">NvGraphicBuffer</a> *buf)</td></tr>
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<tr class="memdesc:a7cada6db01ff0c1e31e45a7ec66ccb91"><td class="mdescLeft"> </td><td class="mdescRight">Registers a <a class="el" href="structNvGraphicBuffer.html">NvGraphicBuffer</a> with a <a class="el" href="structNWindow.html">NWindow</a>. <br /></td></tr>
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<tr class="separator:a7cada6db01ff0c1e31e45a7ec66ccb91"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:af9ef3898d81314a6b27eeb45b90b116f" id="r_af9ef3898d81314a6b27eeb45b90b116f"><td class="memItemLeft" align="right" valign="top"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="native__window_8h.html#af9ef3898d81314a6b27eeb45b90b116f">nwindowDequeueBuffer</a> (<a class="el" href="structNWindow.html">NWindow</a> *nw, <a class="el" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> *out_slot, <a class="el" href="structNvMultiFence.html">NvMultiFence</a> *out_fence)</td></tr>
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<tr class="memdesc:af9ef3898d81314a6b27eeb45b90b116f"><td class="mdescLeft"> </td><td class="mdescRight">Dequeues a buffer from a <a class="el" href="structNWindow.html">NWindow</a>. <br /></td></tr>
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<tr class="separator:af9ef3898d81314a6b27eeb45b90b116f"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a7b6f88b62be01e7dcdeeb95b9a51e77c" id="r_a7b6f88b62be01e7dcdeeb95b9a51e77c"><td class="memItemLeft" align="right" valign="top"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="native__window_8h.html#a7b6f88b62be01e7dcdeeb95b9a51e77c">nwindowCancelBuffer</a> (<a class="el" href="structNWindow.html">NWindow</a> *nw, <a class="el" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> slot, const <a class="el" href="structNvMultiFence.html">NvMultiFence</a> *fence)</td></tr>
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<tr class="memdesc:a7b6f88b62be01e7dcdeeb95b9a51e77c"><td class="mdescLeft"> </td><td class="mdescRight">Cancels a buffer previously dequeued with <a class="el" href="native__window_8h.html#af9ef3898d81314a6b27eeb45b90b116f">nwindowDequeueBuffer</a>. <br /></td></tr>
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<tr class="separator:a7b6f88b62be01e7dcdeeb95b9a51e77c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a55a6d346e0006548fe6105e1d3e72c76" id="r_a55a6d346e0006548fe6105e1d3e72c76"><td class="memItemLeft" align="right" valign="top"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="native__window_8h.html#a55a6d346e0006548fe6105e1d3e72c76">nwindowQueueBuffer</a> (<a class="el" href="structNWindow.html">NWindow</a> *nw, <a class="el" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> slot, const <a class="el" href="structNvMultiFence.html">NvMultiFence</a> *fence)</td></tr>
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<tr class="memdesc:a55a6d346e0006548fe6105e1d3e72c76"><td class="mdescLeft"> </td><td class="mdescRight">Queues a buffer previously dequeued with <a class="el" href="native__window_8h.html#af9ef3898d81314a6b27eeb45b90b116f">nwindowDequeueBuffer</a>, making it ready for presentation. <br /></td></tr>
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<tr class="separator:a55a6d346e0006548fe6105e1d3e72c76"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ad91622ed63094c3a8dbdd3fae49a4a13" id="r_ad91622ed63094c3a8dbdd3fae49a4a13"><td class="memItemLeft" align="right" valign="top"><a id="ad91622ed63094c3a8dbdd3fae49a4a13" name="ad91622ed63094c3a8dbdd3fae49a4a13"></a>
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<a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> </td><td class="memItemRight" valign="bottom"><b>nwindowReleaseBuffers</b> (<a class="el" href="structNWindow.html">NWindow</a> *nw)</td></tr>
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<tr class="memdesc:ad91622ed63094c3a8dbdd3fae49a4a13"><td class="mdescLeft"> </td><td class="mdescRight">Releases all buffers registered with a <a class="el" href="structNWindow.html">NWindow</a>. <br /></td></tr>
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<tr class="separator:ad91622ed63094c3a8dbdd3fae49a4a13"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>Native window (<a class="el" href="structNWindow.html" title="Native window structure.">NWindow</a>) wrapper object, used for presenting images to the display (or other sinks). </p>
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<dl class="section author"><dt>Author</dt><dd>fincs </dd></dl>
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<dl class="section copyright"><dt>Copyright</dt><dd>libnx Authors </dd></dl>
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</div><h2 class="groupheader">Function Documentation</h2>
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<a id="a7b6f88b62be01e7dcdeeb95b9a51e77c" name="a7b6f88b62be01e7dcdeeb95b9a51e77c"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a7b6f88b62be01e7dcdeeb95b9a51e77c">◆ </a></span>nwindowCancelBuffer()</h2>
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<td class="memname"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> nwindowCancelBuffer </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="structNWindow.html">NWindow</a> * </td>
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<td class="paramname"><em>nw</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> </td>
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<td class="paramname"><em>slot</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">const <a class="el" href="structNvMultiFence.html">NvMultiFence</a> * </td>
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<td class="paramname"><em>fence</em> </td>
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<td>)</td>
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<p>Cancels a buffer previously dequeued with <a class="el" href="native__window_8h.html#af9ef3898d81314a6b27eeb45b90b116f">nwindowDequeueBuffer</a>. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">nw</td><td>Pointer to <a class="el" href="structNWindow.html">NWindow</a> structure. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">slot</td><td>ID of the slot to cancel. This must match the output of the previous <a class="el" href="native__window_8h.html#af9ef3898d81314a6b27eeb45b90b116f">nwindowDequeueBuffer</a> call. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">fence</td><td>Pointer to the <a class="el" href="structNvMultiFence.html">NvMultiFence</a> that will be waited on by the compositor before cancelling the buffer. Pass NULL if there is no such fence. </td></tr>
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</table>
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</dd>
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</dl>
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<a id="a7cada6db01ff0c1e31e45a7ec66ccb91" name="a7cada6db01ff0c1e31e45a7ec66ccb91"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a7cada6db01ff0c1e31e45a7ec66ccb91">◆ </a></span>nwindowConfigureBuffer()</h2>
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<td class="memname"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> nwindowConfigureBuffer </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="structNWindow.html">NWindow</a> * </td>
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<td class="paramname"><em>nw</em>, </td>
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<td></td>
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<td class="paramtype"><a class="el" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> </td>
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<td class="paramname"><em>slot</em>, </td>
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<td></td>
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<td class="paramtype"><a class="el" href="structNvGraphicBuffer.html">NvGraphicBuffer</a> * </td>
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<td class="paramname"><em>buf</em> </td>
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<td>)</td>
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<p>Registers a <a class="el" href="structNvGraphicBuffer.html">NvGraphicBuffer</a> with a <a class="el" href="structNWindow.html">NWindow</a>. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">nw</td><td>Pointer to <a class="el" href="structNWindow.html">NWindow</a> structure. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">slot</td><td>ID of the slot to configure (starting from 0). </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">buf</td><td>Pointer to <a class="el" href="structNvGraphicBuffer.html">NvGraphicBuffer</a> structure. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section note"><dt>Note</dt><dd>When a buffer is registered, it is added to the internal queue of buffers used for presenting. </dd>
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<dd>
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All buffers registered with a <a class="el" href="structNWindow.html">NWindow</a> must have the same dimensions, format and usage. If <a class="el" href="native__window_8h.html#afaf6cc9b314a52cb40d5f54cc1325ee9">nwindowSetDimensions</a> has not been previously called, the <a class="el" href="structNWindow.html">NWindow</a> will automatically adopt the dimensions of the first buffer registered with it. Otherwise, said buffer will need to match the dimensions that were previously configured. </dd></dl>
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<a id="abd122ebc7b9dbde934f19a2c8c3d109c" name="abd122ebc7b9dbde934f19a2c8c3d109c"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#abd122ebc7b9dbde934f19a2c8c3d109c">◆ </a></span>nwindowCreate()</h2>
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<td class="memname"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> nwindowCreate </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="structNWindow.html">NWindow</a> * </td>
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<td class="paramname"><em>nw</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="structService.html">Service</a> * </td>
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<td class="paramname"><em>binder_session</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> </td>
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<td class="paramname"><em>binder_id</em>, </td>
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<td></td>
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<td class="paramtype">bool </td>
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<td class="paramname"><em>producer_controlled_by_app</em> </td>
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<td></td>
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<p>Creates a <a class="el" href="structNWindow.html">NWindow</a>. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[out]</td><td class="paramname">nw</td><td>Output <a class="el" href="structNWindow.html">NWindow</a> structure. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">binder_session</td><td><a class="el" href="structService.html" title="Service object structure.">Service</a> object for the Android IGraphicBufferProducer binder session. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">binder_id</td><td>Android IGraphicBufferProducer binder session ID. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">producer_controlled_by_app</td><td>Specifies whether the producer is controlled by the application. </td></tr>
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</table>
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</dd>
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</dl>
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</div>
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<a id="a29f696363cff25799fb0c912be66b59a" name="a29f696363cff25799fb0c912be66b59a"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a29f696363cff25799fb0c912be66b59a">◆ </a></span>nwindowCreateFromLayer()</h2>
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<td class="memname"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> nwindowCreateFromLayer </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="structNWindow.html">NWindow</a> * </td>
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<td class="paramname"><em>nw</em>, </td>
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<td></td>
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<td class="paramtype">const <a class="el" href="structViLayer.html">ViLayer</a> * </td>
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<td class="paramname"><em>layer</em> </td>
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<td>)</td>
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<p>Creates a <a class="el" href="structNWindow.html">NWindow</a> operating on a <a class="el" href="structViLayer.html">ViLayer</a>. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[out]</td><td class="paramname">nw</td><td>Output <a class="el" href="structNWindow.html">NWindow</a> structure. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">layer</td><td>Pointer to <a class="el" href="structViLayer.html">ViLayer</a> structure (such as the one returned by viCreateLayer). </td></tr>
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<a id="af9ef3898d81314a6b27eeb45b90b116f" name="af9ef3898d81314a6b27eeb45b90b116f"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#af9ef3898d81314a6b27eeb45b90b116f">◆ </a></span>nwindowDequeueBuffer()</h2>
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<td class="memname"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> nwindowDequeueBuffer </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="structNWindow.html">NWindow</a> * </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> * </td>
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<td class="paramname"><em>out_slot</em>, </td>
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<td class="paramtype"><a class="el" href="structNvMultiFence.html">NvMultiFence</a> * </td>
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<td class="paramname"><em>out_fence</em> </td>
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<p>Dequeues a buffer from a <a class="el" href="structNWindow.html">NWindow</a>. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">nw</td><td>Pointer to <a class="el" href="structNWindow.html">NWindow</a> structure. </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">out_slot</td><td>Output variable containing the ID of the slot that has been dequeued. </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">out_fence</td><td>Output variable containing a <a class="el" href="structNvMultiFence.html">NvMultiFence</a> that will be signalled by the compositor when the buffer is ready to be written to. Pass NULL to wait instead on this fence before this function returns. </td></tr>
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<dl class="section note"><dt>Note</dt><dd>For <code>out_fence=NULL</code> to work, nvFenceInit must have been previously called. </dd></dl>
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<a id="a15a1695c9e19f666b396ce29a68891e9" name="a15a1695c9e19f666b396ce29a68891e9"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a15a1695c9e19f666b396ce29a68891e9">◆ </a></span>nwindowGetDefault()</h2>
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<td class="memname"><a class="el" href="structNWindow.html">NWindow</a> * nwindowGetDefault </td>
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<p>Retrieves the default <a class="el" href="structNWindow.html">NWindow</a> object. </p>
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<dl class="section return"><dt>Returns</dt><dd>Pointer to the default <a class="el" href="structNWindow.html">NWindow</a> object. </dd></dl>
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<dl class="section note"><dt>Note</dt><dd>When this function is used/referenced, libnx will initialize VI services and create a <a class="el" href="structNWindow.html">NWindow</a> object from a <a class="el" href="structViLayer.html">ViLayer</a> created on the default <a class="el" href="structViDisplay.html">ViDisplay</a>; all of this happening automatically during application startup (i.e. before main is called). If creating the default <a class="el" href="structNWindow.html">NWindow</a> fails, libnx will throw a LibnxError_BadGfxInit fatal error. Likewise, after main returns (or exit is called) libnx will clean up all resources used by it. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ac9bde326027224f3a78325aeb905be55">◆ </a></span>nwindowGetDimensions()</h2>
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<td class="memname"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> nwindowGetDimensions </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="structNWindow.html">NWindow</a> * </td>
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<td class="paramtype"><a class="el" href="types_8h.html#afaa62991928fb9fb18ff0db62a040aba">u32</a> * </td>
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<td class="paramname"><em>out_width</em>, </td>
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<td class="paramname"><em>out_height</em> </td>
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<p>Retrieves the dimensions of a <a class="el" href="structNWindow.html">NWindow</a>. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">nw</td><td>Pointer to <a class="el" href="structNWindow.html">NWindow</a> structure. </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">out_width</td><td>Output variable containing the width of the <a class="el" href="structNWindow.html">NWindow</a>. </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">out_height</td><td>Output variable containing the height of the <a class="el" href="structNWindow.html">NWindow</a>. </td></tr>
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</dd>
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<dl class="section note"><dt>Note</dt><dd>After creation, a <a class="el" href="structNWindow.html">NWindow</a> reports a default size (usually 1280x720). This size can be overriden by calling <a class="el" href="native__window_8h.html#afaf6cc9b314a52cb40d5f54cc1325ee9">nwindowSetDimensions</a>. </dd></dl>
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<a id="a55a6d346e0006548fe6105e1d3e72c76" name="a55a6d346e0006548fe6105e1d3e72c76"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a55a6d346e0006548fe6105e1d3e72c76">◆ </a></span>nwindowQueueBuffer()</h2>
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<td class="memname"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> nwindowQueueBuffer </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="structNWindow.html">NWindow</a> * </td>
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<td class="paramname"><em>nw</em>, </td>
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<td></td>
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<td class="paramtype"><a class="el" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> </td>
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<td class="paramname"><em>slot</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">const <a class="el" href="structNvMultiFence.html">NvMultiFence</a> * </td>
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<td class="paramname"><em>fence</em> </td>
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<td>)</td>
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<p>Queues a buffer previously dequeued with <a class="el" href="native__window_8h.html#af9ef3898d81314a6b27eeb45b90b116f">nwindowDequeueBuffer</a>, making it ready for presentation. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">nw</td><td>Pointer to <a class="el" href="structNWindow.html">NWindow</a> structure. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">slot</td><td>ID of the slot to queue. This must match the output of the previous <a class="el" href="native__window_8h.html#af9ef3898d81314a6b27eeb45b90b116f">nwindowDequeueBuffer</a> call. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">fence</td><td>Pointer to the <a class="el" href="structNvMultiFence.html">NvMultiFence</a> that will be waited on by the compositor before queuing/presenting the buffer. Pass NULL if there is no such fence. </td></tr>
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</table>
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</dd>
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</dl>
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</div>
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</div>
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<a id="acd960d92cccfd440771fa31a32563bac" name="acd960d92cccfd440771fa31a32563bac"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#acd960d92cccfd440771fa31a32563bac">◆ </a></span>nwindowSetCrop()</h2>
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<td class="memname"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> nwindowSetCrop </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="structNWindow.html">NWindow</a> * </td>
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<td class="paramname"><em>nw</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> </td>
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<td class="paramname"><em>left</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> </td>
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<td class="paramname"><em>top</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> </td>
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<td class="paramname"><em>right</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> </td>
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<td class="paramname"><em>bottom</em> </td>
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<td></td>
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<td>)</td>
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</div><div class="memdoc">
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<p>Configures the crop applied to images presented through a <a class="el" href="structNWindow.html">NWindow</a>. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">nw</td><td>Pointer to <a class="el" href="structNWindow.html">NWindow</a> structure. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">left</td><td>X coordinate of the left margin of the crop bounding box. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">top</td><td>Y coordinate of the top margin of the crop bounding box. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">right</td><td>X coordinate of the right margin of the crop bounding box. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">bottom</td><td>Y coordinate of the bottom margin of the crop bounding box. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section note"><dt>Note</dt><dd>Passing zero to all parameters disables the crop functionality. This is also the default. </dd>
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<dd>
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The bounding box defined by the parameters will be adjusted to fit within the dimensions of the <a class="el" href="structNWindow.html">NWindow</a>. </dd>
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<dd>
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<code>left</code> must be less or equal than <code>right</code>. </dd>
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<dd>
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<code>top</code> must be less or equal than <code>bottom</code>. </dd></dl>
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</div>
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</div>
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<a id="afaf6cc9b314a52cb40d5f54cc1325ee9" name="afaf6cc9b314a52cb40d5f54cc1325ee9"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#afaf6cc9b314a52cb40d5f54cc1325ee9">◆ </a></span>nwindowSetDimensions()</h2>
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<td class="memname"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> nwindowSetDimensions </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="structNWindow.html">NWindow</a> * </td>
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<td class="paramname"><em>nw</em>, </td>
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<td></td>
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<td class="paramtype"><a class="el" href="types_8h.html#afaa62991928fb9fb18ff0db62a040aba">u32</a> </td>
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<td class="paramname"><em>width</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="types_8h.html#afaa62991928fb9fb18ff0db62a040aba">u32</a> </td>
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<td class="paramname"><em>height</em> </td>
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</tr>
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<td></td>
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<td>)</td>
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</div><div class="memdoc">
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<p>Sets the dimensions of a <a class="el" href="structNWindow.html">NWindow</a>. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">nw</td><td>Pointer to <a class="el" href="structNWindow.html">NWindow</a> structure. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">width</td><td>Desired width of the <a class="el" href="structNWindow.html">NWindow</a>. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">height</td><td>Desired width of the <a class="el" href="structNWindow.html">NWindow</a>. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section note"><dt>Note</dt><dd>This function cannot be called when there are buffers registered with the <a class="el" href="structNWindow.html">NWindow</a>. </dd></dl>
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</div>
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<a id="aaf4f7c623f93a0fafe570c69891af6a3" name="aaf4f7c623f93a0fafe570c69891af6a3"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#aaf4f7c623f93a0fafe570c69891af6a3">◆ </a></span>nwindowSetSwapInterval()</h2>
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<td class="memname"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> nwindowSetSwapInterval </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="structNWindow.html">NWindow</a> * </td>
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<td class="paramname"><em>nw</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="types_8h.html#afaa62991928fb9fb18ff0db62a040aba">u32</a> </td>
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<td class="paramname"><em>swap_interval</em> </td>
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<td>)</td>
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</div><div class="memdoc">
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<p>Configures the swap interval of a <a class="el" href="structNWindow.html">NWindow</a>. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">nw</td><td>Pointer to <a class="el" href="structNWindow.html">NWindow</a> structure. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">swap_interval</td><td>Value specifying the number of display refreshes (VBlanks) that must occur between presenting images. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section note"><dt>Note</dt><dd>The default swap interval is 1. </dd>
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<dd>
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If the <a class="el" href="structNWindow.html">NWindow</a> has three or more buffers configured (with <a class="el" href="native__window_8h.html#a7cada6db01ff0c1e31e45a7ec66ccb91">nwindowConfigureBuffer</a>), it is possible to pass 0 to disable the swap interval feature and present images as fast as allowed by the compositor. Otherwise, the system enforces a minimum of 1 as the swap interval. </dd></dl>
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</div>
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</div>
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<a id="a0c3a6f914d37943eee1e62b97410d13b" name="a0c3a6f914d37943eee1e62b97410d13b"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a0c3a6f914d37943eee1e62b97410d13b">◆ </a></span>nwindowSetTransform()</h2>
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<td class="memname"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> nwindowSetTransform </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="structNWindow.html">NWindow</a> * </td>
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<td class="paramname"><em>nw</em>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="types_8h.html#afaa62991928fb9fb18ff0db62a040aba">u32</a> </td>
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<td class="paramname"><em>transform</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<p>Configures the transformation applied to images presented through a <a class="el" href="structNWindow.html">NWindow</a>. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">nw</td><td>Pointer to <a class="el" href="structNWindow.html">NWindow</a> structure. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">transform</td><td>Android transformation mode (see NATIVE_WINDOW_TRANSFORM_* enum) </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section note"><dt>Note</dt><dd>The default transformation is 0 (i.e. no transformation applied) </dd></dl>
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</div>
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</div>
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