PyQt5 QColorDialog - 选定的颜色

在本文中，我们将了解如何获取 QColorDialog 小部件的选定颜色。所选颜色是用户通过单击确定或等效按钮选择的颜色。

注意：此颜色并不总是与 currentColor 属性保持的颜色相同，因为用户可以在最终选择要使用的颜色之前选择不同的颜色。

为了做到这一点，我们将selectedColor方法与 QColorDialog 对象一起使用

Syntax : dialog.selectedColor()

Argument : It takes no argument

Returns : It returns QColor object

下面是实现

# 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, 500, 400)
  
        # calling method
        self.UiComponents()
  
        # showing all the widgets
        self.show()
  
  
    # method for components
    def UiComponents(self):
  
        # creating a QColorDialog object
        dialog = QColorDialog(self)
  
        # executing the dialog
        dialog.exec_()
  
  
        # creating label
        label = QLabel("GeeksforGeeks", self)
  
        # setting geometry to the label
        label.setGeometry(100, 100, 300, 80)
  
        # making label multi line
        label.setWordWrap(True)
  
        # setting stylesheet of the label
        label.setStyleSheet("QLabel"
                            "{"
                            "border : 5px solid black;"
                            "}")
  
  
        # getting the selected color
        value = dialog.selectedColor()
  
        # setting text to the label
        label.setText("Selected Color : " + str(value))
      
  
        color = value
  
        # setting graphic effect to the label
        graphic = QGraphicsColorizeEffect(self)
  
        # setting color to the graphic
        graphic.setColor(color)
  
        # setting graphic to the label
        label.setGraphicsEffect(graphic)
  
  
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 ：