C / C++ / MFC

// DirectX9 D3DXIntersect function:
// Determines if a ray intersects with a mesh.
 
HRESULT D3DXIntersect(
LPD3DXBASEMESHpMesh,
CONST D3DXVECTOR3 * pRayPos,
CONST D3DXVECTOR3 * pRayDir,
BOOL *pHit,
DWORD * pFaceIndex,
FLOAT * pU,
FLOAT * pV,
FLOAT * pDist,
LPD3DXBUFFER * ppAllHits,
DWORD * pCountOfHits);

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My variables and code:

Note:  My code works great.

I just need help with getting and returning the exact coordinates of my ray’s intersection with the mesh.
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float XBegin, float YBegin, float ZBegin;   // <-- Starting Position of Ray
float XEnd, float YEnd, float ZEnd;           // <-- Ending Position of Ray
sMesh *LevelMesh;
BOOL Hit;
float u, v, Dist;
float XDiff, YDiff, ZDiff, Radius;
DWORD FaceIndex;
D3DXVECTOR3 vecDir;
 
// looking for collision intersection
while(LevelMesh != NULL) {
D3DXIntersect(LevelMesh->m_Mesh, \
&D3DXVECTOR3(XBegin,YBegin,ZBegin), &vecDir, \
&Hit, &FaceIndex, &u, &v, &Dist, NULL, NULL);
if(Hit == TRUE) {
if(Dist < Radius)
return TRUE; // polygons hit
}
return FALSE; // No polygons hit
}

undefined reference to `Pa_Initialize'