Live-Preview

.slint files are compiled to C++ code when using the slint_target_sources() function. This is the default and recommended for release builds.

During debugging and development, changes to .slint files requires re-compiling and re-starting the application. To speed up modifications to the UI while connected to the applications’ business logic, you can opt into enabling Live-Preview for C++:

1. Compile Slint from sources. At the configure step, enable the SLINT_FEATURE_LIVE_PREVIEW cmake option.

2. When compiling your application, set the SLINT_LIVE_PREVIEW=1 environment variable.

3. Start you application. The Slint run-time library will load and reload .slint files after you’ve modified them on disk.