problem using qgraphicsview

QGraphicsScene s;
s.addText("hello"); //s.addRect(0,0,100,100);
QGraphicsView v(&s);
v.show();

i am using qt4.5 , i try to write a simple qt program using qt creator to display a view containing a scene with text or a rectagle , when i run it its displaying only a blank view neither text or a rectangle being drawn.

can any body help

This is working fine on my machine.

Code:

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#include <QApplication>
#include <Qtgui>
 
int main(int argc, char *argv[])
{
	QApplication a(argc, argv);
	QGraphicsScene s;
	s.addText("hello"); //s.addRect(0,0,100,100);
	QGraphicsView v(&s);
	v.show();
	return a.exec();
}

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Quote:

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Originally Posted by sandhyarani

QGraphicsScene s;
s.addText("hello"); //s.addRect(0,0,100,100);
QGraphicsView v(&s);
v.show();

i am using qt4.5 , i try to write a simple qt program using qt creator to display a view containing a scene with text or a rectagle , when i run it its displaying only a blank view neither text or a rectangle being drawn.

can any body help

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You sure it doesn't go out of score with everything on stack? Try to put it in heap and see what happen...

Quote:

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Originally Posted by lni

You sure it doesn't go out of score with everything on stack?

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Yes I am, because app.exec() is the barrier here. untill you dont terminate application execution, these objects will be in memory, and the program is running absolutely fine.

Quote:

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Originally Posted by lni

Try to put it in heap and see what happen...

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Same results.:););)