[QT] QPushButton creation

Catalog

One 、 Function interpretation

Two 、 Code application and running results  

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One 、 Function interpretation

1、 Create button

The header file ：#include <QPushButton>

QPushButton * btn = new QPushButton;
btn->show();// Pop up the window by ejecting

Two 、 Code application and running results  

  // Create a button 
    QPushButton * btn = new QPushButton;
    btn->show();//  Pop up the window by ejecting 

    // Give Way btn Depending on widget Window 
    btn->setParent(this);

    // Show text 
    btn->setText(" The first button ");

    // Create a second button   Create a window according to the size of the control 
    QPushButton * btn2 = new QPushButton(" The second button ", this);

    // Move btn2
    btn2->move(100,100);

    // Set up btn2 Size 
    btn2->resize(50,50);

    // Reset window size 
    resize(600,400);

    // Set fixed window size 
    setFixedSize(600,400);

    // Set the title of the window 
    setWindowTitle(" Hi hi harm ");