I am trying to develop application that would let me mark A-B points on the timeline. How do I draw lines on the trackbar to mark a specific point/value?
Also, how
I think these links help you to customize your trackbar control. Second link gives you a lot of examples for customize trackbar.
http://www.codeproject.com/KB/miscctrl/MAC_Slider.aspx
http://www.codeproject.com/KB/miscctrl/gTrackBar.aspx