# Form based GUI {#v4d_font_with_gui} @prev_tutorial{v4d_custom_source_and_sink} @next_tutorial{v4d} | | | | -: | :- | | Original author | Amir Hassan (kallaballa) | | Compatibility | OpenCV >= 4.7 | ## Font rendering with form based GUI Draws "Hello World" to the screen and let's you control the font size and color with a GUI. \htmlinclude "../samples/example_v4d_font_with_gui.html" @include samples/font_with_gui.cpp