Quote Originally Posted by goes2bob View Post
Program desire: display a histogram with values either on an axis, or inside the bar segment (or rectangle), or when the mouse hovers over the bar segment the value appears.
In SVN trunk ( = 5.2 development branch ) you find a draft of a QwtPlotHistogram implementation. It's still incomplete, but might be enough for your needs. Here you can overload QwtPlotHistogram::drawColumn or implement tooltips easily using QwtPlotHistogram::columnRect.

At the moment my focus is on the 5.1 release and the 5.2 branch is a bit orphaned. So it might need some time until a 5.2 release, but you can copy the implementation to your code and backport it to 5.0.

Uwe