how to maximaize the label by using mouse click?

[iswaryasenthilkumar]

i used your code

void Widget::mousePressEvent(QMouseEvent *event)
{
         if (event->button() & (Qt::LeftButton | Qt::RightButton))
        {
            showMaximized();
            activateWindow();
            update();
 
        }
}

void Widget::mousePressEvent(QMouseEvent *event)
{
         if (event->button() & (Qt::LeftButton | Qt::RightButton))
        {
            showMaximized();
            activateWindow();
            update();
           
        }
}

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when i press widget its get maximized,, but

void Widget::mousePressEvent(QMouseEvent *event)
{
         if (event->button() & (Qt::LeftButton | Qt::RightButton))
        {
 
           label->showMaximized();
        }
}

void Widget::mousePressEvent(QMouseEvent *event)
{
         if (event->button() & (Qt::LeftButton | Qt::RightButton))
        {
        
           label->showMaximized();
        }
}

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when i clik label its not get maximized,,whats wrong am doing??

You ignored my question about setting a breakpoint to determine if your Widget::mousePressEvent is even being called. You can change the code all you want, but until you can confirm the method is being executed, you're wasting your time.

Also, the way you changed your code is not very efficient. Why would you duplicate the code like that? How about something like:

if (event->button() & (Qt::LeftButton | Qt::RightButton))

if (event->button() & (Qt::LeftButton | Qt::RightButton))

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Before you respond and tell me that it's not working, please confirm your Widget::mousePressEvent is being executed.