qt中如何使鼠标进入时变色

empty141

我定义了一个MouseEvent事件,当鼠标进入label的区域时,发射一个信号,相应的槽接收这个信号并改变label的背景色,但结果是我只有点击鼠标它才变色而不是鼠标进入时,不知道怎么回事,有达人能指点一下迷津吗?

whyglinux

摘自 QMouseEvent Class Reference:

Mouse events occur when a mouse button is pressed or released inside a widget or when the mouse cursor is moved.

Mouse move events will occur only when a mouse button is pressed down, unless mouse tracking has been enabled with QWidget::setMouseTracking().

empty141

哦,这样啊,谢谢啊

empty141

哦,搞定了,谢谢版主啊!