How to get started developing a control
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I would like to develop a control for a mapping program I have, but I don't even have a clue where to start. Any ideas? Here is what I want the control for: My mapping program effectively reads a list of points with GPS locations and power values. I draw a circle on a map at the GPS point, and the color of the circle is one of four values, depending on the power. In other words, the possible power spectrum is divided with three threshold values into four bands. All of this already works fine. Here is what I want the control to do: I want the user to have a graphical method of adjusting the power thresholds between the four power bands. I would like to show something like: Color1 | Color2 | Color3 | Color4 where the ColorN are colored rectangles representing the four bands, each in that band's assigned color, and the vertical bars are splitters than can be moved back and forth with the mouse, representing the power thresholds between the bands. Any thoughts would be welcome. Thanks.