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The job is to make a QT custom widget. Attached you wil lfind the custom control, that was developed for Windows to use with Visual Studio.
we need this as a widegt to use in a QT software.
Important: Develop in QT C++, use with Unicode settings. Do not use GDI+ like in the current custom control, because it have to run cross platform.
Develop the widget and the same sample application. Test it on Windows and Linux or Mac.
The custom control only use in the sample a value of 100, in real it can hold the size of a Blu-ray, so make sure it is compatible with 64bit.
If you have questions, please ask.