[HOpenGL] multMatrix

Hi, I would like to know how to multiply the current matrix with, for example, the following translation matrix in RowMajor order: [1,0,0,x ,0,1,0,y ,0,0,1,z ,0,0,0,1] I know I must use: multMatrix :: (Matrix m, MatrixComponent c) => m c -> IO () but I don't know how to call it. Can anybody help me? Greetings, Bas