WebGLRenderingContext.isProgram()

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

Browser compatibility

See also

• WebGLRenderingContext.createProgram()
• WebGLRenderingContext.deleteProgram()
• WebGLRenderingContext.linkProgram()
• WebGLRenderingContext.useProgram()
• WebGLRenderingContext.validateProgram()
• WebGLRenderingContext.getProgramParameter()
• WebGLRenderingContext.getProgramInfoLog()