我再菜单动作函数中添加如下代码，加载到creo里，打开一个零件，运行这个程序，creo就崩溃了，求解
ProErr err;
ProMdl crtMdl;
err = ProMdlCurrentGet(&crtMdl);
if(err != PRO_TK_NO_ERROR) return;
ProAsmcomp asmcomp;
asmcomp.id = 46;
asmcomp.owner = crtMdl;
asmcomp.type = PRO_FEATURE;
ProMdl subMdl;
ProAsmcompMdlGet(&asmcomp, &subMdl);
ProName mdlName;
ProMdlNameGet(subMdl, mdlName);
AfxMessageBox((CString)mdlName);