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qt3/doc/html/t7-main-cpp.html

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<pre>/****************************************************************
**
** Qt tutorial 7
**
****************************************************************/
#include &lt;<a href="qapplication-h.html">qapplication.h</a>&gt;
#include &lt;<a href="qpushbutton-h.html">qpushbutton.h</a>&gt;
#include &lt;<a href="qlcdnumber-h.html">qlcdnumber.h</a>&gt;
#include &lt;<a href="qfont-h.html">qfont.h</a>&gt;
#include &lt;<a href="qvbox-h.html">qvbox.h</a>&gt;
#include &lt;<a href="qgrid-h.html">qgrid.h</a>&gt;
#include "lcdrange.h"
class MyWidget : public <a href="qvbox.html">QVBox</a>
{
public:
MyWidget( <a href="qwidget.html">QWidget</a> *parent=0, const char *name=0 );
};
<a name="f29"></a>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-&gt;<a href="qwidget.html#setFont">setFont</a>( QFont( "Times", 18, QFont::Bold ) );
<a href="qobject.html#connect">connect</a>( quit, SIGNAL(<a href="qbutton.html#clicked">clicked</a>()), qApp, SLOT(<a href="qapplication.html#quit">quit</a>()) );
<a href="qgrid.html">QGrid</a> *grid = new <a href="qgrid.html">QGrid</a>( 4, this );
LCDRange *previous = 0;
for( int r = 0 ; r &lt; 4 ; r++ ) {
for( int c = 0 ; c &lt; 4 ; c++ ) {
LCDRange* lr = new LCDRange( grid );
if ( previous )
<a href="qobject.html#connect">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#setMainWidget">setMainWidget</a>( &amp;w );
w.<a href="qwidget.html#show">show</a>();
return a.<a href="qapplication.html#exec">exec</a>();
}
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