ImGuiIntegration memory corruption when destroying context with custom font loaded via AddFontFromMemoryTTF about magnum-integration HOT 3 CLOSED

Zdravím! :)

I ran into this as well when adding a HiDPI-aware font for the WebGL version. According to the docs, it takes ownership of the memory by default and you have to explicitly tell it to not do that -- like this. In your case that would be (from the top of my head):

+ImFontConfig fontConfig;
+fontConfig.FontDataOwnedByAtlas = false;
 ImGuiIO& io = ImGui::GetIO();
-imguiFont = io.Fonts->AddFontFromMemoryTTF(reinterpret_cast<void*>(const_cast<char*>(ttfRaw.data())), ttfRaw.size(), 18.0f);
+imguiFont = io.Fonts->AddFontFromMemoryTTF(reinterpret_cast<void*>(const_cast<char*>(ttfRaw.data())), ttfRaw.size(), 18.0f, &fontConfig);

I'll add a mention about this to the font loading documentation.

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Ah, I have missed that, it fixed the problem for me!

Ďakujem! :)

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For the record, the documentation is now updated mentioning this: 6b4de97

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