获取移动鼠标位置,打印出来。
import sys
from PyQt5.QtWidgets import QApplication, QMainWindow
import pyqtgraph as pg
class MainWindow(QMainWindow):
def __init__(self):
super(MainWindow, self).__init__()
# 创建一个pyqtgraph的PlotWidget
self.plot_widget = pg.PlotWidget()
self.setCentralWidget(self.plot_widget) # 中心只有一个plot_widget
# 连接鼠标移动事件
self.plot_widget.scene().sigMouseMoved.connect(self.mouse_moved)
def mouse_moved(self, event):
# 获取鼠标位置
# pos = event[0] # event是一个包含坐标信息的元组,我们只需要第一个元素
# x = pos.x()
# y = pos.y()
x = event.x()
y = event.y()
# 输出鼠标位置
print(f"Mouse position: x={x}, y={y}")
if __name__ == '__main__':
app = QApplication(sys.argv)
window = MainWindow()
window.show()
sys.exit(app.exec_())
获取鼠标左键位置。
import sys
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QApplication, QMainWindow
from PyQt5.QtGui import QMouseEvent
import pyqtgraph.opengl as gl
class MainWindow(QMainWindow):
def __init__(self):
super(MainWindow, self).__init__()
# 创建一个pyqtgraph的GLViewWidget
self.view_widget = gl.GLViewWidget()
self.setCentralWidget(self.view_widget)
# 关联鼠标左键按下事件到回调函数
self.view_widget.mousePressEvent = self.mouse_left_button_pressed
def mouse_left_button_pressed(self, event: QMouseEvent):
if event.button() == Qt.LeftButton:
# 获取鼠标位置
pos = event.pos()
x = pos.x()
y = pos.y()
# 调用回调函数并传递鼠标位置
self.on_mouse_left_button_pressed(x, y)
def on_mouse_left_button_pressed(self, x, y):
# 在这里执行鼠标左键按下的操作
print(f"Mouse left button pressed at position: x={x}, y={y}")
if __name__ == '__main__':
app = QApplication(sys.argv)
window = MainWindow()
window.show()
sys.exit(app.exec_())