PyQtGraph - 设置窗口标志以绘制窗口

在本文中，我们将看到如何在 PyQtGraph 模块中为绘图窗口设置寡妇标志。 PyQtGraph 是一个用于Python的图形和用户界面库，它提供了设计和科学应用程序中通常需要的功能。它的主要目标是提供用于显示数据（绘图、视频等）的快速交互式图形，其次是提供帮助快速应用程序开发的工具（例如，Qt Designer 中使用的属性树）。绘图窗口包括两个主要部分：包含实际绘制图形的绘图面板和控制面板。窗口标志用于更改与操作系统和绘图窗口的内部交互。
我们可以在下面给出的命令的帮助下创建一个绘图窗口

# creating a pyqtgraph plot window
window = pg.plot()

In order to do this we use setWindowFlag method with the plot window object
Syntax : window.setWindowFlag(Qt.FramelessWindowHint)
Argument : It takes Qt object as argument
Return : It returns None 
 

下面是实现

Python3

# importing QtGui to use QIcon
from PyQt5.QtGui import * from PyQt5.QtCore import Qt
 
# importing pyqtgraph as pg
import pyqtgraph as pg
 
# importing QtCore and QtGui from the pyqtgraph module
from pyqtgraph.Qt import QtCore, QtGui
 
# importing numpy as np
import numpy as np
 
import time
 
# creating a pyqtgraph plot window
window = pg.plot()
 
# icon for plot window
icon = QIcon("logo.png")
 
# setting icon to the plot window
window.setWindowIcon(icon)
 
# setting window geometry
# left = 100, top = 100
# width = 600, height = 500
window.setGeometry(100, 100, 600, 500)
 
# title for the plot window
title = "GeeksforGeeks PyQtGraph"
 
# setting window title to plot window
window.setWindowTitle(title)
 
# create list for y-axis
y1 = [5, 5, 7, 10, 3, 8, 9, 1, 6, 2]
 
# create horizontal list i.e x-axis
x = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
 
# create pyqt5graph bar graph item
# with width = 0.6
# with bar colors = green
bargraph1 = pg.BarGraphItem(x = x, height = y1, width = 0.6, brush ='g')
 
# add item to plot window
# adding bargraph item to the window
window.addItem(bargraph1)
 
# setting window flag
# this will not allow the window to get opened
window.setWindowFlag(Qt.CustomizeWindowHint)
 
 
 
# main method
if __name__ == '__main__':
     
    # importing system
    import sys
     
    # Start Qt event loop unless running in interactive mode or using
    if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
        QtGui.QApplication.instance().exec_()

输出 ：
屏幕上不会出现窗口