go_mygo_display_example

MyGo display example

A MyGo native UI displaying nativeapi's connected displays: identity, name, position, size, work area, scale and primary status. Refresh reads the displays and cursor position again; native display events refresh the list automatically where the platform implements them.

Run

Requires Go 1.27.3+, cgo, CMake 3.24+ and a C/C++ compiler. MyGo is pinned to v0.7.4. From the workspace root:

git submodule update --init core
cmake -S bindings/go -B bindings/go/build -DCMAKE_BUILD_TYPE=Release
cmake --build bindings/go/build --config Release --parallel
cd examples/go_mygo_display_example
go run .

See the Go binding setup for Linux packages, Windows cgo / DLL lookup, and distributing the native shared library. A desktop session is required. Linux's nativeapi display change notifications are not yet implemented; use Refresh after changing the display configuration. Cursor coordinates on Wayland depend on what GTK / the compositor exposes.

Integration

MyGo draws the interface through ui.View. All display data comes from nativeapi's DisplayManager.All() and DisplayManager.CursorPosition(). Refresh copies each display's values into Go state and releases the returned handle immediately. The display listener's event handle is borrowed and is not retained by the interface. Its listener is removed at shutdown.

MyGo owns the AppKit / Win32 / GTK 3 event loop, which also services nativeapi. Init() and native calls run on the main thread in App.WhenReady, view callbacks or native listeners. Background work uses mygo.RunOnMain; there is no second nativeapi application loop or PollEvents call.

Smoke check

go run . --smoke

Opens the real window, enumerates displays, checks their size and scale, then quits automatically. It does not change the display configuration.