Question 1

How do I set up cimgui-go on Linux?

Accepted Answer

Install dependencies like libdrm-dev for DRM/EGL or follow the setup guide for GLFW/SDL2 from the README. Run examples from the examples directory with 'go run .' after ensuring your system meets the glibc requirements for pre-compiled libraries.

Question 2

cimgui-go vs giu: which is better for Go GUIs?

Accepted Answer

cimgui-go offers auto-generated, low-level bindings to Dear ImGui with multiple backends, ideal for full API control. giu is a higher-level, more Go-idiomatic framework but may lag in feature coverage. Choose cimgui-go for performance and completeness; giu for ease of use.

Question 3

How to handle callbacks in cimgui-go?

Accepted Answer

Callbacks use a pre-generated pool of global functions due to CGO limitations. Be cautious as exhausting the pool can cause crashes, and refer to issue #224 for details. Avoid frequent callback usage or monitor pool limits in critical applications.

Question 4

Does cimgui-go support Wayland?

Accepted Answer

GLFW backend defaults to Wayland where possible, but it may not support all ImGui features. Use glfwbackend.ForceX11() to force X11 for compatibility, as mentioned in the tip under supported backends, ensuring broader feature support on Linux.

Question 5

How to compile cimgui-go for an unsupported platform?

Accepted Answer

Compile the C libraries manually using cmake and make in the lib directory, as described in the 'Pre-compile code locally' section. Ensure you have the appropriate C/C++ toolchain installed, and avoid pushing locally compiled libraries to avoid path issues.

Question 6

What are the performance implications of using cimgui-go?

Accepted Answer

Performance is close to native Dear ImGui since it uses C bindings, but CGO adds minor overhead. For most GUI applications, this is negligible, but for embedded or high-frequency updates, test on target hardware and consider backend choice (e.g., Ebitengine for games).

cimgui-go

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