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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Qt Tutorial - t7/main.cpp</title></head><body bgcolor="#ffffff"><p><table width="100%"><tr><td><a href="index.html"><img width="100" height="100" src="qtlogo.png"alt="Home" border="0"><img width="100"height="100" src="face.png" alt="Home" border="0"></a><td valign="top"><div align="right"><img src="dochead.png" width="472" height="27"><br><a href="classes.html"><b>Classes</b></a>- <a href="annotated.html">Annotated</a>- <a href="hierarchy.html">Tree</a>- <a href="functions.html">Functions</a>- <a href="index.html">Home</a>- <a href="topicals.html"><b>Structure</b> <font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" align="center" size=32>Qte</font></a></div></table><p><h1 align=center>Source code for <a href="t7.html">tutorial 7</a>: main.cpp</h1><br clear="all"><hr> <pre>/******************************************************************** Qt tutorial 7******************************************************************/#include <<a href="qapplication-h.html">qapplication.h</a>>#include <<a href="qpushbutton-h.html">qpushbutton.h</a>>#include <<a href="qlcdnumber-h.html">qlcdnumber.h</a>>#include <<a href="qfont-h.html">qfont.h</a>>#include <<a href="qvbox-h.html">qvbox.h</a>>#include <<a href="qgrid-h.html">qgrid.h</a>>#include "lcdrange.h"class MyWidget : public QVBox{public: MyWidget( <a href="qwidget.html">QWidget</a> *parent=0, const char *name=0 );};MyWidget::MyWidget( <a href="qwidget.html">QWidget</a> *parent, const char *name ) : <a href="qvbox.html">QVBox</a>( parent, name ){ <a href="qpushbutton.html">QPushButton</a> *quit = new <a href="qpushbutton.html">QPushButton</a>( "Quit", this, "quit" ); quit-><a href="qwidget.html#090d60">setFont</a>( <a href="qfont.html">QFont</a>( "Times", 18, QFont::Bold ) ); <a href="qobject.html#fbde73">connect</a>( quit, SIGNAL(clicked()), qApp, SLOT(quit()) ); <a href="qgrid.html">QGrid</a> *grid = new <a href="qgrid.html">QGrid</a>( 4, this ); LCDRange *previous = 0; for( int r = 0 ; r < 4 ; r++ ) { for( int c = 0 ; c < 4 ; c++ ) { LCDRange* lr = new LCDRange( grid ); if ( previous ) <a href="qobject.html#fbde73">connect</a>( lr, SIGNAL(valueChanged(int)), previous, SLOT(setValue(int)) ); previous = lr; } }}int main( int argc, char **argv ){ <a href="qapplication.html">QApplication</a> a( argc, argv ); MyWidget w; a.<a href="qapplication.html#7ad759">setMainWidget</a>( &w ); w.<a href="qwidget.html#200ee5">show</a>(); return a.<a href="qapplication.html#84c7bf">exec</a>();}</pre><p><p><address><hr><div align="center"><table width="100%" cellspacing="0" border="0"><tr><td>Copyright ⌨️ 快捷键说明
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