| Microsoft DirectX 8.1 (Visual Basic) | 
Transforms a plane by a given matrix.
D3DXPlaneTransform( _ 
    POut As D3DPLANE, _ 
    P As D3DPLANE, _ 
    M As D3DMATRIX)
If the function fails, an error is raised and Err.Number can be set to one of the following values.
| D3DERR_INVALIDCALL | 
| D3DERR_OUTOFVIDEOMEMORY | 
For information on trapping errors, see the Microsoft® Visual Basic® Error Handling topic.
The matrix, M, must be an affine transform.