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WebGLRenderingContext.isProgram()

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The WebGLRenderingContext.isProgram() method of the WebGL API returns true if the passed WebGLProgram is valid, false otherwise.

Syntax

GLboolean gl.isProgram(program);

Parameters

program
A WebGLProgram to check.

Return value

A GLboolean indicating whether or not the program is valid.

Examples

Checking a program

var canvas = document.getElementById("canvas");
var gl = canvas.getContext("webgl");
var program = gl.createProgram();

// ...

gl.isProgram(program);

Specifications

Specification Status Comment
WebGL 1.0
The definition of 'isProgram' in that specification.
Recommendation Initial definition.
OpenGL ES 2.0
The definition of 'glIsProgram' in that specification.
Standard Man page of the OpenGL API.

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support 9 12 4.0 (2.0) 11 12 5.1
Feature Android Chrome for Android Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile
Basic support ? 25 4.0 (2.0) 1.0 ? 12 8.0

See also

Schlagwörter des Dokuments und Mitwirkende

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