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VB.Net Graphics Question DrawPie

Posted on 2009-07-09
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Last Modified: 2013-11-07
Hi using the graphics objects I managed to a draw a pie segment on the screen.

I'm now stuck because when I hover over the pie segment I need to display some text. Any ideas?

I have tried many things, I even tried to get the pixel color at a mouse point so that I could compare that colour with the colour I painted the segment with. But at the moment I battling to even get the colour from a pixel.
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Question by:dfincham28
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Mike Tomlinson earned 500 total points
ID: 24820955
Build a GraphicsPath() instance for each slice of the pie and build it up using the coordinates and associated drawing methods.  Then when the mouse moves over the pie you iterate over the GraphicsPath (store them in a List) and see if one contains the current position with the IsVisible() method.  If a match is found then display your tooltip or message in some control.

See: http://msdn.microsoft.com/en-us/library/system.drawing.drawing2d.graphicspath.aspx
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Author Closing Comment

by:dfincham28
ID: 31601962
This was very helpful thank you idle mind
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