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 1.0 The definition of 'getProgramParameter' in that specification.	Recommendation	Initial definition.
OpenGL ES 2.0 The definition of 'glGetProgramiv' in that specification.	Standard	Man page of the (similar) OpenGL API.
WebGL 2.0 The 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

See also

• WebGLRenderingContext.getShaderParameter()