PyQt5 QSpinBox – 检查它是否是模态小部件

在这篇文章中，我们将看到如何检查旋转盒子是否是模态小部件。一个模态部件是一个阻止所有其他窗口的部件获得任何输入的部件。

为了做到这一点，我们使用自旋盒对象的isModal方法。

语法： spin_box.isModal()

参数： 它不需要参数

返回： 它返回bool

下面是实现方法

# importing libraries
from PyQt5.QtWidgets import * 
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import * 
from PyQt5.QtCore import * 
import sys


class Window(QMainWindow):

    def __init__(self):
        super().__init__()

        # setting title
        self.setWindowTitle("Python ")

        # setting geometry
        self.setGeometry(100, 100, 600, 400)

        # calling method
        self.UiComponents()

        # showing all the widgets
        self.show()

        # method for widgets
    def UiComponents(self):
        # creating spin box
        self.spin = QSpinBox(self)

        # setting geometry to spin box
        self.spin.setGeometry(100, 100, 250, 40)

        # setting range to the spin box
        self.spin.setRange(1, 999999)

        # setting prefix to spin
        self.spin.setPrefix("PREFIX ")

        # setting suffix to spin
        self.spin.setSuffix(" SUFFIX")

        # getting child of spin box
        child = self.spin.children()[0]

        # creating a label
        label = QLabel(self)

        # making the label multi line
        label.setWordWrap(True)

        # setting geometry to the label
        label.setGeometry(100, 200, 200, 60)

        # checking if spin box is modal widget
        check = self.spin.isModal()

        # setting text to the label
        label.setText("Modal widget ?  : " + str(check))


# create pyqt5 app
App = QApplication(sys.argv)

# create the instance of our Window
window = Window()

# start the app
sys.exit(App.exec())

输出：