acedinitget

// 提示用户选择选择方式

acedInitGet(0, _T("W CP"));

int nRs = acedGetKword(_T("\n请输入关键字确定选择方式[窗选(W)/圈交(CP)]:<点选>"), szKword);

if (RTCAN == nRs)   // 取消

{

return;

}

elseif (RTNONE == nRs)  // 默认为点选

{

// 让用户选择一个点

ads_point pt;

nRs = acedGetPoint(NULL, _T("\n请选择点:"), pt);

if (RTNORM != nRs)  // 取消

return;

nRs = acedSSGet(NULL, pt, NULL, NULL, ss);

}

elseif (RTNORM == nRs)

{

if (_tcscmp(szKword, _T("W")) == 0)

{

// W方式选择集，需要两个点

ads_point pt1, pt2;

nRs = acedGetPoint(NULL, _T("\n请输入第一个角点:"), pt1);

if (RTNORM != nRs)

return;

nRs = acedGetPoint(pt1, _T("\n请输入第二个角点:"), pt2);

if (RTNORM != nRs)

return;

nRs = acedSSGet(_T("W"), pt1, pt2, NULL, ss);

}

elseif (_tcscmp(szKword, _T("CP")) == 0)

{

// CP方式构造选择集，需要一组点,此处需要四个点

ads_point pt[4];

nRs = acedGetPoint(NULL, _T("\n输入第一个点:"), pt[0]);

if (RTNORM != nRs)

return;

nRs = acedGetPoint(pt[0], _T("\n第二个点:"), pt[1]);

if (RTNORM != nRs)

return;

nRs = acedGetPoint(pt[1], _T("\n第三个点:"), pt[2]);

if (RTNORM != nRs)

return;

nRs = acedGetPoint(pt[2], _T("\n第四个点:"), pt[3]);

if (RTNORM != nRs)

return;

resbuf* pRb = acutBuildList(RTPOINT, pt[0], RTPOINT, pt[1], RTPOINT, pt[2], RTPOINT, pt[3], 0);

nRs = acedSSGet(_T("CP"), pRb, NULL, NULL, ss);

acutRelRb(pRb);

}

else

{

acutPrintf(_T("\n无效输入"));

return;

}

}

else

{

acutPrintf(_T("\n无效输入"));

return;

}

if (RTNONE == nRs)

{

acutPrintf(_T("\n选择集为空"));

return;

}

elseif (RTNORM != nRs)

{

acutPrintf(_T("\n构建选择集失败"));

return;

}

//////////////////////////////////////////////////////////////////////////

// 遍历选择集，删除实体

long lLen = 0;

acedSSLength(ss, &lLen);

for (long index = 0; index < lLen; index++)

{

ads_name ent;

AcDbObjectId objId;

acedSSName(ss, index, ent);

acdbGetObjectId(objId, ent);

if (!objId.isValid())

continue;

AcDbEntity* pEnt = NULL;

if (Acad::eOk != acdbOpenAcDbEntity(pEnt, objId, AcDb::kForWrite))

continue;

pEnt->erase();

pEnt->close();

}

acutPrintf(_T("\n删除成功"));

return;

}

} ;