Inverting

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Magnus Nilsson - 25 Apr 2008 09:37 GMT

Is there an easy way to draw inverted lines/rectangles/circles using
System::Drawing::Graphics?

I need this to draw outlines that are visible on top of any type of
background image.

Thanks in advance,
Magnus

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Bob Powell [MVP] - 26 Apr 2008 16:30 GMT

There is no way to do this. You need to use interop and call the old GDI
functions.

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> Is there an easy way to draw inverted lines/rectangles/circles using
> System::Drawing::Graphics?
[quoted text clipped - 4 lines]
> Thanks in advance,
> Magnus

Reply to this Message

Bob Powell [MVP] - 26 Apr 2008 16:33 GMT

Hmm, actually you can using the ControlPaint functions but all ControlPaint
functions draw directly to the desktop and so can look a bit clunky. You can
use DrawReversibleXXX but the effect is often poor because it isn't
integrated into the window drawing.

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> Is there an easy way to draw inverted lines/rectangles/circles using
> System::Drawing::Graphics?
[quoted text clipped - 4 lines]
> Thanks in advance,
> Magnus

Reply to this Message

Inverting

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