LPD3DVECTOR D3DRMVectorSubtract(LPD3DVECTOR lpd, LPD3DVECTOR lps1,
LPD3DVECTOR lps2);
Subtracts two vectors.
·Returns the address of the vector that was passed as the first parameter if successful, or zero otherwise.
lpd
Address of a D3DVECTOR structure that will contain the result of the operation.
lps1
Address of the D3DVECTOR structure from which lps2 is subtracted.
lps2
Address of the D3DVECTOR structure that is subtracted from lps1.