[問題] QT connect
小弟最近在研究QT
想抓取在graphicsview裡的graphicsscene的滑鼠座標
爬文找到需要自制signal 和 slot
目前可以偵測到signal訊號有發出
但是slot卻沒有反應 不知是哪裡出了問題
/////
connect(&scene,SIGNAL(mousePressed(GraphicsSceneMouseEvent*)),this,SLOT(ShowMousePos(QGraphicsSceneMouseEvent*)));
/////
class paintScene : public QGraphicsScene
{
Q_OBJECT
signals:
void mousePressed(QGraphicsSceneMouseEvent *event);
protected:
void mousePressEvent(QGraphicsSceneMouseEvent *event)
{
emit mousePressed(event);
}
};
//////
void QMainWin::ShowMousePos(QGraphicsSceneMouseEvent *event)
{
ui.label->setText (tr ("12345"));
}
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