stylesheet not working correctly

[melody:p]

hello guys
I was make custom frame and I have to decorate them using stylesheet.
my custom frame has title bar and main widget.
and I hope paint to blue only title bar not main widget.
but is not working...........

first, my custom frame is organized like this :

Frame::Frame()
{
    m_titleBar = new TitleBar(this);
    m_content = new QWidget(this);
 
    QVBoxLayout *vbox = new QVBoxLayout(this);
    vbox->addWidget(m_titleBar);
 
    QVBoxLayout *layout = new QVBoxLayout(this);
    layout->addWidget(m_content);
 
    vbox->addLayout(layout);
}
 
TitleBar::TitleBar(QWidget* parent)
: QWidget(parent)
{   
    QLabel *label = new QLabel(this);
    label->setText("mylabel");
 
    QHBoxLayout *hbox = new QHBoxLayout(this);
 
    hbox->addWidget(label);   
}

Frame::Frame()
{
    m_titleBar = new TitleBar(this);
    m_content = new QWidget(this);
   
    QVBoxLayout *vbox = new QVBoxLayout(this);
    vbox->addWidget(m_titleBar);

    QVBoxLayout *layout = new QVBoxLayout(this);
    layout->addWidget(m_content);

    vbox->addLayout(layout);
}

TitleBar::TitleBar(QWidget* parent)
: QWidget(parent)
{   
    QLabel *label = new QLabel(this);
    label->setText("mylabel");

    QHBoxLayout *hbox = new QHBoxLayout(this);
 
    hbox->addWidget(label);   
}

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and I was try some method this :

titlebar->setobjectname("titlebar");
customframe->setstylesheet(tr("QWidget#titlebar{background : red;}"));

titlebar->setobjectname("titlebar");
customframe->setstylesheet(tr("QWidget#titlebar{background : red;}"));

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and this :

titlebar->setstylesheet(tr("QWidget{background : red;"}))

titlebar->setstylesheet(tr("QWidget{background : red;"}))

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It's so hard... please help me ...

[sonulohani]

try this--->

label->setStyleSheet("QLabel{background : red;}");

label->setStyleSheet("QLabel{background : red;}");

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[melody:p]

I was also try that..
but I don't want colored label.
I want paint whole title bar..
how?..

[sonulohani]

what it means :-

paint whole title bar

I didnt understand your ques.

[melody:p]

I'm going to explain you..

My custom frame is like this :

1.png

and your answer is this.
2.png

but I want to method to paint this..
3.png

[sonulohani]

See this example:--->
TitleBarPainting.zip