// 提示用户选择选择方式
acedInitGet(0, _T("W CP"));
int nRs = acedGetKword(_T(" 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(" 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(" 请输入第一个角点:"), pt1);
if (RTNORM != nRs)
return;
nRs = acedGetPoint(pt1, _T(" 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(" 输入第一个点:"), pt[0]);
if (RTNORM != nRs)
return;
nRs = acedGetPoint(pt[0], _T(" 第二个点:"), pt[1]);
if (RTNORM != nRs)
return;
nRs = acedGetPoint(pt[1], _T(" 第三个点:"), pt[2]);
if (RTNORM != nRs)
return;
nRs = acedGetPoint(pt[2], _T(" 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(" 无效输入"));
return;
}
}
else
{
acutPrintf(_T(" 无效输入"));
return;
}
if (RTNONE == nRs)
{
acutPrintf(_T(" 选择集为空"));
return;
}
elseif (RTNORM != nRs)
{
acutPrintf(_T(" 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(" 删除成功"));
return;
}
} ;