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doc/README: add guidelines about mainthread

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mappu 2024-12-29 18:25:52 +13:00
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@ -93,6 +93,8 @@ Qt class inherited types are projected as a Go embedded struct. For example, to
The Go runtime migrates goroutines between OS threads, but Qt expects fixed OS threads to be used for each QObject. When you first call `qt.NewQApplication` in MIQT, that will be considered the [Qt main thread](https://doc.qt.io/qt-6/thread-basics.html#gui-thread-and-worker-thread) and will automatically signal the Go runtime to bind to a fixed OS thread using `runtime.LockOSThread()`.
- When accessing Qt objects from inside another goroutine, it's safest to use `(qt6/mainthread).Wait()` to access the Qt objects from Qt's main thread.
Some C++ idioms that were difficult to project were omitted from the binding. But, this can be improved in the future.
### Q6. Can I use Qt Designer and the Qt Resource system?