• 頭文件

  1 #include <QMouseEvent>
  2 #include <QStatusBar>
  3 #include <QLabel>

  1 protected:
  2     //鼠標按下
  3     void mousePressEvent(QMouseEvent *e);
  4     //鼠標移動
  5     void mouseMoveEvent(QMouseEvent *e);
  6     //鼠標釋放
  7     void mouseReleaseEvent(QMouseEvent *e);
  8     //鼠標雙擊
  9     void mouseDoubleClickEvent(QMouseEvent *e);

  ?

• mainwindow.cpp

   1 //點擊
   2 void MainWindow::mousePressEvent(QMouseEvent *e)
   3 {
   4     if(e->button()==Qt::LeftButton)
   5     {
   6         this->setWindowTitle("left press");
   7     }
   8     else if(e->button()==Qt::RightButton)
   9     {
  10         this->setWindowTitle("right press");
  11     }
  12     else if(e->button()==Qt::MidButton)
  13     {
  14         this->setWindowTitle("mid press");
  15     }
  16 }
  17 
  18 //移動
  19 void MainWindow::mouseMoveEvent(QMouseEvent *e)
  20 {
  21     this->setWindowTitle(QString::number(e->x()) + "," + QString::number(e->y()) );
  22 }
  23 
  24 void MainWindow::mouseReleaseEvent(QMouseEvent *e)
  25 {
  26      this->setWindowTitle("Release " + QString::number(e->x()) + "," + QString::number(e->y()) );
  27 }
  28 
  29 void MainWindow::mouseDoubleClickEvent(QMouseEvent *e)
  30 {
  31     this->setWindowTitle("double click " + QString::number(e->x()) + "," + QString::number(e->y()) );
  32 }

  ?

轉載于:https://www.cnblogs.com/xiaochi/p/8746978.html

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