How to change the color of lineedit border

[Harini]

Hello everyone

I'm using Qt 4.7. I want a main window of size 272x380 with a line edit widget in it of completely black color(total window and lineedit). But here i'm unable to change the color of line edit border
Here is my code and screen shot attached....As displayed in the screenshot I need that red shaded border also black. I tried different types of code but i din't get it.Can any one please help me regarding this issue??

#include <QtGui/QApplication>
#include "mainwindow.h"
#include <QLineEdit>
 
 
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    QLineEdit *LineEdit = new QLineEdit;
    LineEdit->setStyleSheet("border: black");
    //LineEdit->setStyleSheet("border: 1px solid black");
 
 
   //LineEdit->setStyleSheet("QLineEdit{background: black;}");
     //      ("QLineEdit { background-color : rgb(45, 45, 45); }");
   //LineEdit>setStyleSheet("QLineEdit{background: black;}");
 
 
    QMainWindow window;
    window.setWindowFlags(Qt::WindowTitleHint | Qt::FramelessWindowHint);
    window.setWindowTitle("     ");
    window.setFixedSize(272,480);
 
    MainWindow w;
    w.show();
    return a.exec();
}

#include <QtGui/QApplication>
#include "mainwindow.h"
#include <QLineEdit>


int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    QLineEdit *LineEdit = new QLineEdit;
    LineEdit->setStyleSheet("border: black");
    //LineEdit->setStyleSheet("border: 1px solid black");


   //LineEdit->setStyleSheet("QLineEdit{background: black;}");
     //      ("QLineEdit { background-color : rgb(45, 45, 45); }");
   //LineEdit>setStyleSheet("QLineEdit{background: black;}");


    QMainWindow window;
    window.setWindowFlags(Qt::WindowTitleHint | Qt::FramelessWindowHint);
    window.setWindowTitle("     ");
    window.setFixedSize(272,480);

    MainWindow w;
    w.show();
    return a.exec();
}

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#include "mainwindow.h"
#include "ui_mainwindow.h"


MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent, Qt::FramelessWindowHint),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
this->setStyleSheet("background-color:rgb(13, 13, 13);");
// this->setStyleSheet("QLineEdit{foregroundRole-color : rgb(244, 244, 244); }");

//this->setStyleSheet("QLineEdit{border: black;}");


}

MainWindow::~MainWindow()
{
delete ui;
}

void MainWindow::changeEvent(QEvent *e)
{
QMainWindow::changeEvent(e);
switch (e->type()) {
case QEvent::LanguageChange:
ui->retranslateUi(this);
break;
default:
break;
}
}

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
 
#include <QMainWindow>
 
namespace Ui {
    class MainWindow;
}
 
class MainWindow : public QMainWindow {
    Q_OBJECT
public:
    MainWindow(QWidget *parent = 0);
    ~MainWindow();
 
protected:
    void changeEvent(QEvent *e);
 
private:
    Ui::MainWindow *ui;[QTCLASS][/QTCLASS]
};
 
#endif // MAINWINDOW_H

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>

namespace Ui {
    class MainWindow;
}

class MainWindow : public QMainWindow {
    Q_OBJECT
public:
    MainWindow(QWidget *parent = 0);
    ~MainWindow();

protected:
    void changeEvent(QEvent *e);

private:
    Ui::MainWindow *ui;[QTCLASS][/QTCLASS]
};

#endif // MAINWINDOW_H

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