WebGLRenderingContext: getProgramParameter() method

Available in workers

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

Syntax

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

Browser compatibility

See also

• getShaderParameter()