# Form based GUI {#viz2d_font_with_gui}

@prev_tutorial{viz2d_video_editing}

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| -: | :- |
| Original author | Amir Hassan (kallaballa) <amir@viel-zu.org> |
| 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 based on FormHelper.

@include samples/cpp/font_with_gui.cpp

![The result](doc/font_with_gui.png)