2010 Khronos Group
glGetProgramPipeline 3G
glGetProgramPipeline retrieve properties of a program pipeline object

## C Specification

void `glGetProgramPipelineiv` GLuint pipeline GLenum pname GLint *params

## Parameters

pipeline

  Specifies the name of a program pipeline object whose parameter retrieve.

pname

  Specifies the name of the parameter to retrieve.

params

  Specifies the address of a variable into which will be written the value or values of pname for pipeline.

## Description

`glGetProgramPipelineiv` retrieves the value of a property of the program pipeline object pipeline. pname specifies the name of the parameter whose value to retrieve. The value of the parameter is written to the variable whose address is given by params.

If pname is `GL_ACTIVE_PROGRAM`, the name of the active program object of the program pipeline object is returned in params.

If pname is `GL_VERTEX_SHADER`, the name of the current program object for the vertex shader type of the program pipeline object is returned in params.

If pname is `GL_TESS_CONTROL_SHADER`, the name of the current program object for the tessellation control shader type of the program pipeline object is returned in params.

If pname is `GL_TESS_EVALUATION_SHADER`, the name of the current program object for the tessellation evaluation shader type of the program pipeline object is returned in params.

If pname is `GL_GEOMETRY_SHADER`, the name of the current program object for the geometry shader type of the program pipeline object is returned in params.

If pname is `GL_FRAGMENT_SHADER`, the name of the current program object for the fragment shader type of the program pipeline object is returned in params.

If pname is `GL_INFO_LOG_LENGTH`, the length of the info log, including the null terminator, is returned in params. If there is no info log, zero is returned.

## Errors

`GL_INVALID_OPERATION` is generated if pipeline is not zero or a name previously returned from a call to glGenProgramPipelines or if such a name has been deleted by a call to glDeleteProgramPipelines.

`GL_INVALID_ENUM` is generated if pname is not one of the accepted values.

## See Also

glGetProgramPipelines, glBindProgramPipeline, glDeleteProgramPipelines

## Copyright

Copyright 2010 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.