How to convert the opaque part of a picture to a WPF Obejct

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I want to use pictures to display some complex graphics
Such as:

C#

DrawingContext dc = this.RenderOpen();
dc.DrawImage(...);
dc.Close();

but when “OnHitTest” triggered
the rectangular region of the picture leads to error judgment
so I want to remove the transparent part of the picture or
convert the opaque part of the picture to a WPF Obejct
I have seen the methods in DrawingContext
maybe dc.DrawDrawing() could be use
thanks to any answers.

Posted 10-Jul-12 5:31am

arucied

Updated 10-Jul-12 16:36pm

v2

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arucied · Accepted Answer · 2012-07-10T23:02:00

Solution 1

I solved it by judge the focused Pixels
if it is transplant filter out
forgive my poor English...

Posted 10-Jul-12 23:02pm

arucied

Updated 10-Jul-12 23:05pm

v2