Transforms the distance vector (dx,dy) by matrix. This is similar to pango_matrix_transform_point() except that the translation components of the transformation are ignored. The calculation of Since 1.16
in/out X component of a distance vector
yn/out Y component of a distance vector
See Implementation
Transforms the distance vector (dx,dy) by matrix. This is similar to pango_matrix_transform_point() except that the translation components of the transformation are ignored. The calculation of Since 1.16