Draw a quadTo curve with curve length

To draw a quad to curve using QPainterPath we need to have a start point and end point and a control point.
[code]
QPoint pointStart, pointEnd, C;
QPainterPath path;
path.moveTo(pointStart)
path.quadTo(C, pointEnd)
[/code]Now i dont have the control point but instead I have the length of the curve...Can we calculate one control point using start point, end point and curve length?... Any suggestions highly appreciated. Thanks Sujan

whats the sense of opening a new thread with exactly the same question like in the "old thread":http://qtproject.org/forums/viewthread/35134/ from yesterday?!
The answer is still the same... you have to do the math. If you can't do that than a math related forum can help you more.