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GLGETSHADER(3G)                                  OpenGL 3.3                                  GLGETSHADER(3G)



NAME
       glGetShaderiv - Returns a parameter from a shader object

C SPECIFICATION
       void glGetShaderiv(GLuint shader, GLenum pname, GLint *params);

PARAMETERS
       shader
           Specifies the shader object to be queried.

       pname
           Specifies the object parameter. Accepted symbolic names are GL_SHADER_TYPE, GL_DELETE_STATUS,
           GL_COMPILE_STATUS, GL_INFO_LOG_LENGTH, GL_SHADER_SOURCE_LENGTH.

       params
           Returns the requested object parameter.

DESCRIPTION
       glGetShader returns in params the value of a parameter for a specific shader object. The following
       parameters are defined:

       GL_SHADER_TYPE

           params returns GL_VERTEX_SHADER if shader is a vertex shader object, GL_GEOMETRY_SHADER if shader
           is a geometry shader object, and GL_FRAGMENT_SHADER if shader is a fragment shader object.

       GL_DELETE_STATUS

           params returns GL_TRUE if shader is currently flagged for deletion, and GL_FALSE otherwise.

       GL_COMPILE_STATUS

           params returns GL_TRUE if the last compile operation on shader was successful, and GL_FALSE
           otherwise.

       GL_INFO_LOG_LENGTH

           params returns the number of characters in the information log for shader including the null
           termination character (i.e., the size of the character buffer required to store the information
           log). If shader has no information log, a value of 0 is returned.

       GL_SHADER_SOURCE_LENGTH

           params returns the length of the concatenation of the source strings that make up the shader
           source for the shader, including the null termination character. (i.e., the size of the character
           buffer required to store the shader source). If no source code exists, 0 is returned.

NOTES
       If an error is generated, no change is made to the contents of params.

ERRORS
       GL_INVALID_VALUE is generated if shader is not a value generated by OpenGL.

       GL_INVALID_OPERATION is generated if shader does not refer to a shader object.

       GL_INVALID_ENUM is generated if pname is not an accepted value.

ASSOCIATED GETS
       glGetShaderInfoLog() with argument shader

       glGetShaderSource() with argument shader

       glIsShader()

SEE ALSO
       glCompileShader(), glCreateShader(), glDeleteShader(), glGetProgram(), glShaderSource()


COPYRIGHT
       Copyright (C) 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/.



OpenGL 3.3                                       03/08/2011                                  GLGETSHADER(3G)