Outline a path with GDI+ in .Net

Question

How does one outline a graphicspath using GDI+? For example, I add two intersecting rectangles to a GraphicsPath. I want to draw the outline of this resulting graphicspath o

Answer 1

I cannot try it myself, but I think you should create a Region object with your shapes' intersections and then use the FrameRgn API.
Here is its pinvoke signature:

[DllImport("gdi32.dll")]
static extern bool FrameRgn(
    IntPtr hdc, 
    IntPtr hrgn, 
    IntPtr hbr, 
    int nWidth,
    int nHeight);

P.S: please post your solution if this works, I'm curious :)