Description: QC based on C++ development, one-form routine is very simple, suitable for beginners and design of the menu bar and toolbars, add MdiChild class that implements one of the New, Open, Save, Save As, and other functions that operate close add a dynamically created menus
In mainwindow.cpp files to add new functionality to test the function of the File menu.
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File list (Check if you may need any files):
myMdi-withNewMenu\images\about.png
.................\......\copy.png
.................\......\cut.png
.................\......\exit.png
.................\......\new.png
.................\......\next.png
.................\......\open.png
.................\......\paste.png
.................\......\previous.png
.................\......\redo.png
.................\......\save.png
.................\......\saveAs.png
.................\......\undo.png
.................\main.cpp
.................\mainwindow.cpp
.................\mainwindow.h
.................\mainwindow.ui
.................\mdichild.cpp
.................\mdichild.h
.................\myImage.qrc
.................\myMdi.pro
.................\images
myMdi-withNewMenu
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