获取当前视图arx

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void getCurrentView(AcDbViewTableRecord& view) {
  struct resbuf var;
  struct resbuf WCS, UCS, DCS;
  WCS.restype = RTSHORT;
  WCS.resval.rint = 0;
  UCS.restype = RTSHORT;
  UCS.resval.rint = 1;
  DCS.restype = RTSHORT;
  DCS.resval.rint = 2;
  ads_getvar(L"VIEWMODE", &var);
  view.setPerspectiveEnabled(var.resval.rint & 1);
  view.setFrontClipEnabled(var.resval.rint & 2 ? true : false);
  view.setBackClipEnabled(var.resval.rint & 4 ? true : false);
  view.setFrontClipAtEye(!(var.resval.rint & 16));
  ads_getvar(L"BACKZ", &var);
  view.setBackClipDistance(var.resval.rreal);
  ads_getvar(L"VIEWCTR", &var);
  ads_trans(var.resval.rpoint, &UCS, &DCS, NULL, var.resval.rpoint);
  view.setCenterPoint(AcGePoint2d(var.resval.rpoint[X], var.resval.rpoint[Y]));
  ads_getvar(L"FRONTZ", &var);
  view.setFrontClipDistance(var.resval.rreal);
  ads_getvar(L"LENSLENGTH", &var);
  view.setLensLength(var.resval.rreal);
  ads_getvar(L"TARGET", &var);
  ads_trans(var.resval.rpoint, &UCS, &WCS, NULL, var.resval.rpoint);
  view.setTarget(AcGePoint3d(var.resval.rpoint[X], var.resval.rpoint[Y],
                             var.resval.rpoint[Z]));
  ads_getvar(L"VIEWDIR", &var);
  ads_trans(var.resval.rpoint, &UCS, &WCS, TRUE, var.resval.rpoint);

  view.setViewDirection(AcGeVector3d(var.resval.rpoint[X], var.resval.rpoint[Y],
                                     var.resval.rpoint[Z]));
  ads_getvar(L"VIEWSIZE", &var);
  view.setHeight(var.resval.rreal);
  double tst = view.width();
}