Qt 设置对话框中按钮.doc

Qt 对话框及其按钮 本文应该说主要是讲述Qt按钮的一些设置方法，主要内容为：标准按钮的创建、自设按钮、按钮文本的中英文显示、按钮的禁用、设置按钮大小、按钮的透明设置、默认按钮、按钮上图标加载、对话框上显示中英文文本、对话框标题等。 程序中已给出解释： 首先：.h文件 #ifndef MESSAGEBOX_H #define MESSAGEBOX_H #include QDialog class QLabel; class MessageBox : public QDialog { Q_OBJECT public: MessageBox(QWidget *parent=0); public slots: void slotQuestion(); void slotInformation(); void slotWarning(); void slotCritical(); void slotAbout(); void slotAboutQt(); void slotCustom(); private: QLabel *label; }; #endif // MESSAGEBOX_H 其次：.cpp文件 #include messagebox.h #include QtGui MessageBox::MessageBox(QWidget *parent) : QDialog(parent) { setWindowTitle(trUtf8(\345\257\271\350\257\235\346\241\206\345\255\246\344\271\240\347\244\272\344\276\213)); label = new QLabel; QPushButton *btn1 = new QPushButton(this); btn1-setText(trUtf8(\347\226\221\351\227\256)); //显示按钮中文名称 QPushButton *btn2 = new QPushButton(this); btn2-setText(trUtf8(\344\277\241\346\201\257)); QPushButton *btn3 = new QPushButton(this); btn3-setText(trUtf8(\346\217\220\351\206\222)); QPushButton *btn4 = new QPushButton(Critical);//按钮名称为英文 QPushButton *btn5 = new QPushButton(About); QPushButton *btn6 = new QPushButton(About Qt); QPushButton *btn7 = new QPushButton(Custom); QGridLayout *grid = new QGridLayout; grid-addWidget(btn1,0,0); grid-addWidget(btn2,0,1); grid-addWidget(btn3,1,0); grid-addWidget(btn4,1,1); grid-addWidget(btn5,2,0); grid-addWidget(btn6,2,1); grid-addWidget(btn7,3,0); QVBoxLayout *mainLayout = new QVBoxLayout; mainLayout-setMargin(10); mainLayout-setSpacing(20); mainLayout-addWidget(label); mainLayout-addLayout(grid); setLayout(mainLayout); connect(btn1,SIGNAL(clicked()),this,SLOT(slotQuestion())); connect(btn2,SIGNAL(clicked()),this,SLOT(slotInformation())); connect(btn3,SIGNAL(clicked()),this,SLOT(slotWarning())); connect(btn4,