hi again, after ax working perfectly, im trying to do a simple diagram, with 2 types of boxes locked to allow only moving then vertically,  using "LeftInRightOut" style :

................................[cboxSc]
[cboxSe]..................[cboxSc]
................................[cboxSc]

and creating arrows programatically with this code:

ArrowItem arr=m_FlowChart.CreateArrow(cboxSe,cboxSc);

arr.SetStyle(asPerpendicular );

arr.SetSegments(3);

arr.SetCtrlPtX(1, 630);

arr.SetCtrlPtX(2, 630);

arr.Update();

arr.SetAutoRoute(FALSE);

this create an arrow between the left cboxSe and the right box cboxSc, the code works perfectly when the two boxes are side by side,

[cboxSe]...............[cboxSc]

but if the boxes are in diferent vertical levels:

...............................[cboxSc]
............................................
[cboxSe]..............................

then the arrow is created bad, diagonally not with "asPerpendicular" style, after that, if I move the boxes with the mouse vertically, then the arrow is draw correctly, really, when I start moving the right box, the righ portion of the arrow (from the defined point at 640) changes from diagonal to perpendicular as it should be, and so on when moving the left box.

may be I'm doing something wrong, or is there any way to "refresh" the arrow to get it corretly draw after creating it without moving the boxes? thanks