C ++ memo-QT (4), Memo-qt

C ++ memo-QT (4), Memo-qt

User Logon-creator Programming

Draw the following interface:

 

During compilation, the following header file ui_main1_1_h is automatically generated

 

 

/*************************************** **************************************** *

** Form generated from reading UI file 'mainwindow. Ui'

**

** Created by: Qt User Interface Compilerversion 5.4.0

**

** WARNING! All changes made in this filewill be lost when recompiling UI file!

**************************************** ****************************************/

 

# Ifndef UI_MAINWINDOW_H

# Define UI_MAINWINDOW_H

 

# Include <QtCore/QVariant>

# Include <QtWidgets/QAction>

# Include <QtWidgets/QApplication>

# Include <QtWidgets/QButtonGroup>

# Include <QtWidgets/QHBoxLayout>

# Include <QtWidgets/QHeaderView>

# Include <QtWidgets/QLabel>

# Include <QtWidgets/QLineEdit>

# Include <QtWidgets/QMainWindow>

# Include <QtWidgets/QMenuBar>

# Include <QtWidgets/QPushButton>

# Include <QtWidgets/QStatusBar>

# Include <QtWidgets/QToolBar>

# Include <QtWidgets/QVBoxLayout>

# Include <QtWidgets/QWidget>

 

QT_BEGIN_NAMESPACE

 

Class Ui_MainWindow

{

Public:

QWidget * centralWidget;

QVBoxLayout * verticalLayout;

QHBoxLayout * horizontalLayout_2;

QLabel * userLb;

QLineEdit * userNameLe;

QHBoxLayout * horizontalLayout_3;

...

 

Write cpp files

Mainwindow. cpp

# Include "mainwindow. h"

# Include "ui_main1_1_h"

# Include <QMessageBox>

 

MainWindow: MainWindow (QWidget * parent ):

QMainWindow (parent ),

Ui (new Ui: MainWindow)

{

Ui-> setupUi (this );

}

 

MainWindow ::~ MainWindow ()

{

Delete ui;

}

 

 

VoidMainWindow: on_okBt_clicked ()

{

If (ui-> userNameLe-> text (). compare ("user") = 0 & ui-> passWordLe-> text (). compare ("123") = 0)

{

QMessageBox: information (this, "log on to the system", "correct password ",

QMessageBox: OK );

Close ();

}

Else

{

QMessageBox: information (this, "log on to the system", "Incorrect password. Please enter it again! ",

QMessageBox: OK );

}

}

 

Void MainWindow: on_quitBt_clicked ()

{

If (QMessageBox: information (this, "log on to the system", "exit the system? ",

QMessageBox: Yes, QMessageBox: No) = QMessageBox: Yes ){

Close ();

 

}

 

}

 

All content of this blog is original, if reproduced please indicate the source http://blog.csdn.net/myhaspl/

SetupUi automatically generates some connect relationships, including the following statements:

QMetaObject: connectSlotsByName (MainWindow );

Automatically generate a slot by signal name

For example

Connect (quitBt, SIGNAL (clicked (), this, SLOT (on_quitBt_clicked ));