Returns a matrix equivalent to a flip about the x-axis.
HRESULT flipX( ISVGMatrix **ppResult );
- [out, retval] The resulting matrix.
Returns S_OK if successful, or an error value otherwise.
The ISVGMatrix::flipX method post-multiplies the matrix by using the transformation [-1 0 0 1 0 0] and returns the resulting matrix.
Post-multiplies means that other matrix operations are performed before this operation.