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slint/api/cpp/docs/live_preview.md
Olivier Goffart 88697c68bb Remove license header from .md/.mdx files 
They should be in the lines, but the problem is that this causes issues
in the .mdx files.

License header doesn't really make sense for .md files anyway
2025-12-04 21:58:09 +01:00

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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.