Qt 學習實例教程

1. //mydialog.h
2. #ifndef MYDIALOG_H
3. #define MYDIALOG_H
4. #include <QDialog>
5. class QPushButton;
6. class MyDialog : public QDialog
7. {
8. Q_OBJECT
9. public:
10. explicit MyDialog(QWidget *parent = 0);
11. signals:
12. public slots:
13. private:
14. QPushButton *pushButton3D;
15. QPushButton *pushButton2D;
16. };
17. #endif // MYDIALOG_H

1. //mydialog.cpp
2. #include "mydialog.h"
3. #include <QtGui/QPushButton>
4. #include <QtGui/QIcon>
5. #include <QtGui/QVBoxLayout>
6. MyDialog::MyDialog(QWidget *parent) :
7. QDialog(parent)
8. {
9. pushButton3D = new QPushButton();
10. //創建一個圖標QIcon對象 資源文件路徑可以是絕對路徑 也可以是導入工程中後資源文件的路徑
11. QIcon icon3D(":/new/ico/images/3d.ico");
12. //設置按鈕的圖標
13. pushButton3D->setIcon(icon3D);
15. pushButton2D = new QPushButton();
16. QIcon icon2D(":/new/ico/images/2d.ico");
17. pushButton2D->setIcon(icon2D);
18. //將按鈕設置為2D平面顯示 還是一個按鈕 可以進行點擊操作
19. pushButton2D->setFlat(true);
20. //設置按鈕的文本信息
21. pushButton2D->setText("Test");
23. QVBoxLayout *layout = new QVBoxLayout();
24. layout->addWidget(pushButton2D);
25. layout->addWidget(pushButton3D);
27. this->setLayout(layout);
28. this->resize(100, 100);
29. this->setWindowTitle("QPushButtonDemo");
30. }

1. //main.cpp
2. #include <QtGui/QApplication>
3. #include "mydialog.h"
4. int main(int argc, char *argv[])
5. {
6. QApplication a(argc, argv);
7. MyDialog dialog;
8. dialog.show();
9. return a.exec();
10. }

資源文件截圖：

程序運行截圖：