code: func ShaderSource(shader uint32, count int32, xstring **uint8, length *int32) {
  	C.glowShaderSource(gpShaderSource, (C.GLuint)(shader), (C.GLsizei)(count), (**C.GLchar)(unsafe.Pointer(xstring)), (*C.GLint)(unsafe.Pointer(length)))
  }
docs: // Replaces the source code in a shader object