GLGETFRAGDATALOCATIO(3G)

NAME
glGetFragDataLocation - query the bindings of color numbers to user-defined varying out variables

C SPECIFICATION

GLint glGetFragDataLocation(GLuint program, const char * name);

PARAMETERS

program
    The name of the program containing varying out variable whose binding to query

name
    The name of the user-defined varying out variable whose binding to query

DESCRIPTION

glGetFragDataLocation retrieves the assigned color number binding for the user-defined varying out variable name for program program. program must have previously been linked. name must be a null-terminated string. If name is not the name of an active user-defined varying out fragment shader variable within program, -1 will be returned.

ERRORS

GL_INVALID_OPERATION is generated if program is not the name of a program object.

SEE ALSO

glCreateProgram(), glBindFragDataLocation()

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/.

AUTHORS

opengl.org