qt 背景随窗口变化

方案一：使用paintEvent

C/C++ code

    
    
    
    

     
     
     
      
     
     
     
     void
     
     
     
      Widget::paintEvent(QPaintEvent 
     
     
     
     *
     
     
     
     e) { QPainter painter(
     
     
     
     this
     
     
     
     ); painter.drawPixmap(
     
     
     
     0
     
     
     
     ,
     
     
     
     0
     
     
     
     ,
     
     
     
     this
     
     
     
     ->
     
     
     
     width(),
     
     
     
     this
     
     
     
     ->
     
     
     
     height(),QPixmap(
     
     
     
     "
     
     
     
     :/xxx.png
     
     
     
     "
     
     
     
     )); } 
    
    
    
    

方案二：使用setStyleSheet

C/C++ code

    
    
    
    

     
     
     
      widget
     
     
     
     ->
     
     
     
     setStyleSheet(
     
     
     
     "
     
     
     
     border-image: url(:/xxx.png)
     
     
     
     "
     
     
     
     );