NAME

       glAttachShader - Attaches a shader object to a program object

C SPECIFICATION

       void glAttachShader(GLuint program, GLuint shader);

PARAMETERS

       program
           Specifies the program object to which a shader object will be attached.

       shader
           Specifies the shader object that is to be attached.

DESCRIPTION

       In order to create a complete shader program, there must be a way to specify the list of
       things that will be linked together. Program objects provide this mechanism. Shaders that
       are to be linked together in a program object must first be attached to that program
       object.  glAttachShader attaches the shader object specified by shader to the program
       object specified by program. This indicates that shader will be included in link
       operations that will be performed on program.

       All operations that can be performed on a shader object are valid whether or not the
       shader object is attached to a program object. It is permissible to attach a shader object
       to a program object before source code has been loaded into the shader object or before
       the shader object has been compiled. It is permissible to attach multiple shader objects
       of the same type because each may contain a portion of the complete shader. It is also
       permissible to attach a shader object to more than one program object. If a shader object
       is deleted while it is attached to a program object, it will be flagged for deletion, and
       deletion will not occur until glDetachShader() is called to detach it from all program
       objects to which it is attached.

ERRORS

       GL_INVALID_VALUE is generated if either program or shader is not a value generated by
       OpenGL.

       GL_INVALID_OPERATION is generated if program is not a program object.

       GL_INVALID_OPERATION is generated if shader is not a shader object.

       GL_INVALID_OPERATION is generated if shader is already attached to program.

ASSOCIATED GETS

       glGetAttachedShaders() with the handle of a valid program object

       glGetShaderInfoLog()

       glGetShaderSource()

       glIsProgram()

       glIsShader()

SEE ALSO

       glCompileShader(), glCreateShader(), glDeleteShader(), glDetachShader(), glLinkProgram(),
       glShaderSource()

COPYRIGHT

       Copyright © 2003-2005 3Dlabs Inc. Ltd. 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/.

AUTHORS

       opengl.org