Web/API/WebGLRenderingContext/getProgramParameter

The WebGLRenderingContext.getProgramParameter() method of the WebGL API returns information about the given program.

Syntax

any gl.getProgramParameter(program, pname);

Parameters

program: A WebGLProgram to get parameter information from.
pname: A Glenum specifying the information to query. Possible values:

gl.DELETE_STATUS

Returns a GLboolean indicating whether or not the program is flagged for deletion.
gl.LINK_STATUS: Returns a GLboolean indicating whether or not the last link operation was successful.
gl.VALIDATE_STATUS: Returns a GLboolean indicating whether or not the last validation operation was successful.
gl.ATTACHED_SHADERS: Returns a GLint indicating the number of attached shaders to a program.
gl.ACTIVE_ATTRIBUTES: Returns a GLint indicating the number of active attribute variables to a program.
gl.ACTIVE_UNIFORMS: Returns a GLint indicating the number of active uniform variables to a program.
When using a WebGL 2 context, the following values are available additionally:

gl.TRANSFORM_FEEDBACK_BUFFER_MODE

- Returns a GLenum indicating the buffer mode when transform feedback is active. May be gl.SEPARATE_ATTRIBS or gl.INTERLEAVED_ATTRIBS.
- gl.TRANSFORM_FEEDBACK_VARYINGS: Returns a GLint indicating the number of varying variables to capture in transform feedback mode.
- gl.ACTIVE_UNIFORM_BLOCKS: Returns a GLint indicating the number of uniform blocks containing active uniforms.

Return value

Returns the requested program information (as specified with pname).

Examples

gl.getProgramParameter(program, gl.DELETE_STATUS);

Specifications

Specification	Status	Comment
WebGL 1.0The definition of 'getProgramParameter' in that specification.	Recommendation	Initial definition.
OpenGL ES 2.0The definition of 'glGetProgramiv' in that specification.	Standard	Man page of the (similar) OpenGL API.
WebGL 2.0The definition of 'getProgramParameter' in that specification.	Editor's Draft	Adds new `pname` values: `gl.TRANSFORM_FEEDBACK_BUFFER_MODE`, `gl.TRANSFORM_FEEDBACK_VARYINGS`, `gl.ACTIVE_UNIFORM_BLOCKS`

Browser compatibility

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`getProgramParameter`	Chrome Full support 9	Edge Full support 12	Firefox Full support 4	IE Full support 11	Opera Full support 12	Safari Full support 5.1	WebView Android Full support Yes	Chrome Android Full support 25	Firefox Android Full support Yes	Opera Android Full support 12	Safari iOS Full support 8	Samsung Internet Android Full support 1.5
`WebGL2`	Chrome Full support 56	Edge Full support 79	Firefox Full support 51	IE No support No	Opera Full support 43	Safari No support No	WebView Android Full support 58	Chrome Android Full support 58	Firefox Android Full support 51	Opera Android Full support 43	Safari iOS No support No	Samsung Internet Android Full support 7.0

Legend

Full support: Full support
No support: No support