Using cCairoSurface drawing while preserving current image

Hello!

I would like to draw a cCairoSurface image onto a DC while preserving what is there.

Here is an example of what that looked like when I used c32bppdib.

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However, what I get when just using the .DrawToDC function of cCairoSurface, is that:

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Can you advise me on how to achieve my goal while being as performant as my previous approach c32bppdib approach?

Attached Images

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