ProError IsInterference(ProSelection pMdlSel1, ProSelection pMdlSel2, ProBoolean & pIsInterference, double &nVolume)

{

pIsInterference = PRO_B_FALSE;

nVolume = 0;

Prohandle pModel = pro_get_current_object();

if (pModel == NULL)

return PRO_TK_GENERAL_ERROR;

Select3d pSel[2];

pSel[0] = *pMdlSel1;

pSel[1] = *pMdlSel2;

Prohandle* pSurArr = NULL;

int nSurNum = 0;

int nErr = pro_compute_interference(pSel, PROINTERF_SOLID_ONLY,  &pSurArr, &nSurNum);

...

详细参考: http://www.mcadex.com/bbs_1431046_ss20130113/thread_82897_1.html