2010 Khronos Group
glProgramParameter 3G
glProgramParameter specify a parameter for a program object

## C Specification

void `glProgramParameteri` GLuint program GLenum pname GLint value

## Parameters

program

  Specifies the name of a program object whose parameter to modify.

pname

  Specifies the name of the parameter to modify.

value

  Specifies the new value of the parameter specified by pname for program.

## Description

`glProgramParameter` specifies a new value for the parameter nameed by pname for the program object program.

If pname is `GL_PROGRAM_BINARY_RETRIEVABLE_HINT`, value should be `GL_FALSE` or `GL_TRUE` to indicate to the implementation the intention of the application to retrieve the program's binary representation with glGetProgramBinary. The implementation may use this information to store information that may be useful for a future query of the program's binary. It is recommended to set `GL_PROGRAM_BINARY_RETRIEVABLE_HINT` for the program to `GL_TRUE` before calling glLinkProgram, and using the program at run-time if the binary is to be retrieved later.

If pname is `GL_PROGRAM_SEPARABLE`, value must be `GL_TRUE` or `GL_FALSE` and indicates whether program can be bound to individual pipeline stages via glUseProgramStages. A program's `GL_PROGRAM_SEPARABLE` parameter must be set to `GL_TRUE` before glLinkProgram is called in order for it to be usable with a program pipeline object. The initial state of `GL_PROGRAM_SEPARABLE` is `GL_FALSE`.

## Errors

`GL_INVALID_OPERATION` is generated if program is not the name of an existing program object.

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

`GL_INVALID_VALUE` is generated if value is not a valid value for the parameter named by pname.

## Associated Gets

glGetProgram.

## See Also

glGetProgram, glGetProgramBinary, glProgramBinary

## 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/.