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author | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
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committer | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
commit | 33058f2b292b3a581333bdfb21b8f671898c5060 (patch) | |
tree | 51c3e392513ec574331b2d3f85c394445ea803c6 /files/zh-cn/web/api/webglrenderingcontext/isprogram | |
parent | 8b66d724f7caf0157093fb09cfec8fbd0c6ad50a (diff) | |
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diff --git a/files/zh-cn/web/api/webglrenderingcontext/isprogram/index.html b/files/zh-cn/web/api/webglrenderingcontext/isprogram/index.html new file mode 100644 index 0000000000..0c272f6188 --- /dev/null +++ b/files/zh-cn/web/api/webglrenderingcontext/isprogram/index.html @@ -0,0 +1,77 @@ +--- +title: WebGLRenderingContext.isProgram() +slug: Web/API/WebGLRenderingContext/isProgram +translation_of: Web/API/WebGLRenderingContext/isProgram +--- +<p>{{APIRef("WebGL")}}</p> + +<p> <a href="/en-US/docs/Web/API/WebGL_API">WebGL API</a>中的<strong><code>WebGLRenderingContext.isProgram()</code></strong> 函数 将会在{{domxref("WebGLProgram")}}是一个合法的着色器程序(program)时返回 <code>true</code> , 而在其他情况返回<code>false</code></p> + +<h2 id="语法">语法</h2> + +<pre class="syntaxbox">GLboolean <var>gl</var>.isProgram(<var>program</var>); +</pre> + +<h3 id="参数">参数</h3> + +<dl> + <dt>program</dt> + <dd>一个要检查的 {{domxref("WebGLProgram")}}对象 .</dd> +</dl> + +<h3 id="返回值">返回值</h3> + +<p>一个表示program是否有效的 {{domxref("GLboolean")}} 值.</p> + +<h2 id="示例">示例</h2> + +<h3 id="检查一个program是否有效">检查一个program是否有效</h3> + +<pre class="brush: js">var canvas = document.getElementById('canvas'); +var gl = canvas.getContext('webgl'); +var program = gl.createProgram(); + +// ... + +gl.isProgram(program); +</pre> + +<h2 id="Specifications">Specifications</h2> + +<table class="standard-table"> + <tbody> + <tr> + <th scope="col">Specification</th> + <th scope="col">Status</th> + <th scope="col">Comment</th> + </tr> + <tr> + <td>{{SpecName('WebGL', "#5.14.9", "isProgram")}}</td> + <td>{{Spec2('WebGL')}}</td> + <td>Initial definition.</td> + </tr> + <tr> + <td>{{SpecName('OpenGL ES 2.0', "glIsProgram.xml", "glIsProgram")}}</td> + <td>{{Spec2('OpenGL ES 2.0')}}</td> + <td>Man page of the OpenGL API.</td> + </tr> + </tbody> +</table> + +<h2 id="浏览器兼容性">浏览器兼容性</h2> + +<p class="hidden">The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> and send us a pull request.</p> + +<p>{{Compat("api.WebGLRenderingContext.isProgram")}}</p> + +<h2 id="另请参见">另请参见</h2> + +<ul> + <li>{{domxref("WebGLRenderingContext.createProgram()")}}</li> + <li>{{domxref("WebGLRenderingContext.deleteProgram()")}}</li> + <li>{{domxref("WebGLRenderingContext.linkProgram()")}}</li> + <li>{{domxref("WebGLRenderingContext.useProgram()")}}</li> + <li>{{domxref("WebGLRenderingContext.validateProgram()")}}</li> + <li>{{domxref("WebGLRenderingContext.getProgramParameter()")}}</li> + <li>{{domxref("WebGLRenderingContext.getProgramInfoLog()")}}</li> +</ul> |