<p>下面是一个使用<a href="http://doc-snapshot.qt-project.org/4.8/qpushbutton.html" rel="nofollow">^{<cd2>}</a>的<a href="http://doc-snapshot.qt-project.org/4.8/qabstractbutton.html#clicked" rel="nofollow">^{<cd1>}</a>信号的示例:</p>
<pre><code>#!/usr/bin/env python
#-*- coding:utf-8 -*-
from PyQt4 import QtGui, QtCore
class MyWindow(QtGui.QWidget):
def __init__(self, parent=None):
super(MyWindow, self).__init__(parent)
self.pushButtonSimulate = QtGui.QPushButton(self)
self.pushButtonSimulate.setText("Simulate Mouse Release!")
self.pushButtonSimulate.clicked.connect(self.on_pushButtonSimulate_clicked)
self.layoutHorizontal = QtGui.QHBoxLayout(self)
self.layoutHorizontal.addWidget(self.pushButtonSimulate)
@QtCore.pyqtSlot()
def on_pushButtonSimulate_clicked(self):
mouseReleaseEvent = QtGui.QMouseEvent(
QtCore.QEvent.MouseButtonRelease,
self.cursor().pos(),
QtCore.Qt.LeftButton,
QtCore.Qt.LeftButton,
QtCore.Qt.NoModifier,
)
QtCore.QCoreApplication.postEvent(self, mouseReleaseEvent)
def mouseReleaseEvent(self, event):
if event.button() == QtCore.Qt.LeftButton:
print "Mouse Release"
super(MyWindow, self).mouseReleaseEvent(event)
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
app.setApplicationName('MyWindow')
main = MyWindow()
main.show()
sys.exit(app.exec_())
</code></pre>