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Учебник MQL5 (электронная версия): https://play.google.com/store/books/details?id=M0oREAAAQBAJ
Учебник MQL5 (электронная и бумажная версии): https://ridero.ru/books/programmirovanie_na_yazyke_mql5_ot_osnov_do_indikatorov_i_ekspertov
This is the last of the three articles devoted to graphical controls. It covers the creation of the main graphical interface component - the form - and its use in combination with other controls. In addition to the form classes, CFrame, CButton, CLabel classes have been added to the control library.
The second article of the "Custom Graphical Controls" series introduces a control library for handling the main problems arising in interaction between a program (Expert Advisor, script, indicator) and a user. The library contains a great number of classes (CInputBox, CSpinInputBox, CCheckBox, CRadioGroup, CVSсrollBar, CHSсrollBar, CList, CListMS, CComBox, CHMenu, CVMenu, CHProgress, CDialer, CDialerInputBox, CTable) and examples of their use.
This article covers general principles of development of graphical controls. We are going to prepare tools for a quick and convenient work with graphical objects, analyze an example of creation of a simple control for entering text or numeric data as well as the ways of using it.