建立试图，视口

转自：晓东CAD   未验证

void createVport()
{
       
        acedCommand(RTSTR,"MSPACE",0);
        AcDbObjectId originVportId = acedGetCurViewportObjectId();
        acedCommand(RTSTR,"PSPACE",0);
        if(originVportId != NULL)
        {
                AcDbViewport* pViewport;
                acdbOpenAcDbEntity((AcDbEntity *&)pViewport,originVportId,AcDb::kForWrite);
                pViewport->erase();
                pViewport->close();
        }
       
        double viewPortHeight;
        double viewPortWidth;
       
        ads_name entlast;
        ads_entlast(entlast);
        acedCommand(RTSTR,"-VPORTS",RTSTR,"F",0);
        if(ads_entnext(entlast,entlast) == RTNORM)
        {
                AcDbObjectId vportId;
                acdbGetObjectId(vportId,entlast);
                ///设置视口
                AcDbViewport* pVport;
                acdbOpenAcDbEntity((AcDbEntity *&)pVport,vportId,AcDb::kForWrite);
                pVport->setCustomScale(1);
                pVport->setViewCenter(AcGePoint2d(viewPortWidth/2,viewPortHeight/2));
                pVport->setCenterPoint(AcGePoint3d(viewPortWidth/2,viewPortHeight/2,0));
                pVport->setHeight(viewPortHeight);
                pVport->setWidth(viewPortWidth);
                pVport->close();
        }
               
}
 - 本文出自晓东CAD家园-论坛，原文地址：http://www.xdcad.net/forum/thread-500074-1-1.html