problem with function arguments bindGpuProgramParameters

if (pass->hasVertexProgram())
{
//mRenderSystem->bindGpuProgramParameters(Ogre::GPT_VERTEX_PROGRAM,pass->getVertexProgramParameters());
}
if (pass->hasFragmentProgram())
{
//mRenderSystem->bindGpuProgramParameters(Ogre::GPT_FRAGMENT_PROGRAM,pass->getFragmentProgramParameters());
}


hi all i have a problem with this function, it is afor an old version of quickgui with only 2 arguments, but i can't understand what is the third arguments that in class reerencce is uint16 variabilityMask

anyone can explain me?

1>src\QuickGUIVertexBuffer.cpp(241): error C2660: 'Ogre::RenderSystem::bindGpuProgramParameters' : function does not take 2 arguments