Chapter III Window Parts

1 /*3-1 MyWidget1*/2#include <Qtgui>3 4 intMain (intargcChar* argv[])//Why are two parameters? 5 {6 qapplication A (ARGC,ARGV);7QTEXTCODEC::SETCODECFORTR (Qtextcodec::codecforname ("UTF-8"));//in the code, you can use the Chinese8 9Qwidget *widget =NewQwidget ();//new dynamically allocating memoryTenWidget->setwindowtitle (Qobject::tr ("I'm the widget ."));//Qobject::tr in order not to appear garbled One  A  -Qlabel *label =NewQlabel (); -Label->setwindowtitle (Qobject::tr ("I'm a label .")); theLabel->settext (Qobject::tr ("Label: I am a window")); -  -Label->resize ( -, $);//Change part size -  +  -Qlabel *label2=NewQlabel (widgets);//Label2 Specifies that the parent window is a widget, so label2 is not a window +Label2->settext (Qobject::tr ("Label2: I'm not a standalone window, just a widget subassembly")); A   at  -Label->Show (); -Widget->Show (); -    //label2->show (); //because Label2 is not a window, it cannot be displayed. -  -     intret=a.exec (); inDelete label;//Freeing Memory -Delete widget;//will automatically release Label2 to  +     returnRet//Time Cycle -}

Chapter III Window Parts