IsEmpty: Boolean;
The IsEmpty property determines whether coordinates of the real point are zero ones.
The IsEmpty property is set to True if the real point have coordinates 0, 0.
Sub Button1OnClick(Sender: Object; Args: IMouseEventArgs);
Var
PointF, PointL: IGxPointF;
Link: IWxLink;
s, s1: String;
Begin
Link:=UiWorkspace1.WxWorkspace.CreateLink;
PointF:=Link.FirstPoint;
PointL:=Link.LastPoint;
If PointF.IsEmpty Then
s:="Yes";
Else
s:="No";
End If;
If PointL.IsEmpty Then
s1:="Yes";
Else
s1:="No";
End If;
End Sub Button1OnClick;
After executing the example clicking the button on the workspace creates a connecting line. The "s" and "s1" variables contain Yes if the start and end points are in the point with coordinates 0, 0.
See also: