WebGL2RenderingContext.isQuery()

The WebGL2RenderingContext.isQuery() method of the WebGL 2 API returns true if the passed object is a valid WebGLQuery object.

Syntax

GLBoolean gl.isQuery(query);

Parameters

query
A WebGLQuery object to test.

Return value

A GLboolean indicating whether the given object is a valid WebGLQuery object (true) or not (false).

Examples

gl must be a WebGL2RenderingContext. WebGLQuery objects are not available in WebGL 1.

var query = gl.createQuery();

// ...

gl.isQuery(query);

Specifications

Specification Status Comment
WebGL 2.0
The definition of 'isQuery' in that specification.
Editor's Draft Initial definition.
OpenGL ES 3.0
The definition of 'glIsQuery' in that specification.
Standard Man page of the (similar) OpenGL API.

Browser compatibility

BCD tables only load in the browser

See also