NAME

       glGetFramebufferParameter - retrieve a named parameter from a framebuffer

C SPECIFICATION

       void glGetFramebufferParameteriv(GLenum target, GLenum pname, GLint * params);

PARAMETERS

       target
           The target of the operation, which must be GL_READ_FRAMEBUFFER, GL_DRAW_FRAMEBUFFER or
           GL_FRAMEBUFFER.

       pname
           A token indicating the parameter to be retrieved.

       params
           The address of a variable to receive the value of the parameter named pname.

DESCRIPTION

       glGetFramebufferParameter retrieves the current value of the parameter named pname from
       the framebuffer bound to target.  target must be GL_READ_FRAMEBFUFFER, GL_DRAW_FRAMEBUFFER
       or GL_FRAMEBUFFER. The token GL_FRAMEBUFFER is treated as GL_DRAW_FRAMEBUFFER. A
       non-default framebuffer must be bound to target.

       pname specifies the parameter to be retrieved. The values retrieved from the framebuffer
       are written into the variable whose address is given by params. The following symbols are
       accepted in pname:

       GL_FRAMEBUFFER_DEFAULT_WIDTH
           The value of GL_FRAMEBUFFER_DEFAULT_WIDTH for the framebuffer is written to the single
           integer variable whose address is given by params.

       GL_FRAMEBUFFER_DEFAULT_HEIGHT
           The value of GL_FRAMEBUFFER_DEFAULT_HEIGHT for the framebuffer is written to the
           single integer variable whose address is given by params.

       GL_FRAMEBUFFER_DEFAULT_LAYERS
           The value of GL_FRAMEBUFFER_DEFAULT_LAYERS for the framebuffer is written to the
           single integer variable whose address is given by params.

       GL_FRAMEBUFFER_DEFAULT_SAMPLES
           The value of GL_FRAMEBUFFER_DEFAULT_SAMPLES for the framebuffer is written to the
           single integer variable whose address is given by params.

       GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
           If the value of GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS for the framebuffer is
           GL_TRUE then the single integer variable whose address is in params is set to one,
           otherwise it is set to zero.

ERRORS

       GL_INVALID_ENUM is generated if target is not one of the accepted framebuffer targets.

       GL_INVALID_ENUM is generated if pname is not one of the accepted parameter names.

       GL_INVALID_OPERATION is generated if the default framebuffer is bound to target.

       params should be the address of a variable to which the client has write access otherwise
       undefined behavior, including process termination may occur.

ASSOCIATED GETS

       glGetFramebufferParameteriv().

SEE ALSO

       glFramebufferParameteri().

COPYRIGHT

       Copyright © 2012 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/.

AUTHORS

       opengl.org