CAD得到当前已经选择的实体
作者:互联网
IMxDrawSelectionSet::Select 方法
构造选择集。
参数 |
说明 |
[in] MCAD_McSelect Mode |
构造选择集方式 |
[in] IMxDrawPoint* point1 |
构造择择集时需要使用到的点对象 |
[in] IMxDrawPoint* point2 |
构造择择集时需要使用到的点对象 |
[in,defaultvalue(NULL)] IMxDrawResbuf* filterData |
构造选择集的过滤数据 |
可以取如下值 |
mcSelectionSetWindow = 0, mcSelectionSetCrossing = 1, mcSelectionSetFence = 2, mcSelectionSetPrevious = 3, mcSelectionSetLast = 4, mcSelectionSetAll = 5, 选择图面上的所有实体 mcSelectionSetWindowPolygon = 6, mcSelectionSetCrossingPolygon = 7, mcSelectionSetUserSelect = 8 mcSelectionImpliedSelectSelect = 9,_I 返回当前图上已经选择的实体 |
例如: 得到当前已经选择的实体,Delphi代码:
procedure TForm1.Button1Click(Sender: TObject);
var
ss : IMxDrawSelectionSet;
ii,iNum : Integer;
pEnt : IMxDrawEntity;
begin
iNum := 0;
ss := CoMxDrawSelectionSet.Create();
ss.Select(9,EmptyParam,EmptyParam,EmptyParam,EmptyParam);
// 遍历选择集实体,
for ii := 0 to ss.Count -1 do
begin
pEnt := ss.Item(ii);
iNum := iNum + 1;
end;
showmessage('当前选择了' + IntToStr(iNum) + '个对象');
end;
标签:选择,ss,实体,EmptyParam,ii,当前,iNum,CAD 来源: https://blog.csdn.net/u013725001/article/details/98726945