Transparency in Windows PyQt Does Not Work

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Transparency in Windows PyQt Does Not Work

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#1 by (1 votes)

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Good afternoon I want to generate a transparency effect in my main window. But when executing the code the transparency is not executed and only a black background is set:

This is my code:

import sys
from PyQt5.QtWidgets import QMainWindow, QApplication


class Principal(QMainWindow):
    def __init__(self):
        QMainWindow.__init__(self)
        self.setGeometry(350,150,600,400)
        QMainWindow.setStyleSheet(self,'Background-color:rgba(255, 215, 255,20)') 

  #El valor de 20 es el filtro alfa para la transparencia pero no funciona


app = QApplication([])
p = Principal()
p.show()
app.exec_()

Result I want to get:

Or an aeroglass effect completely "Only if possible"

python python-3.x pyqt5

asked by Revsky01 07.03.2018 в 21:28

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1 answer

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score 1 · Accepted Answer

Try it:

import sys
from PyQt5.QtWidgets import QMainWindow, QApplication
from PyQt5 import Qt

class Principal(QMainWindow):
    def __init__(self):
        super(Principal, self).__init__()

        lbl = Qt.QLabel('Transparencia en Ventanas PyQt Funciona !!', self)
        lbl.setStyleSheet("""QLabel{
          font-family:'Consolas'; 
          color: red; 
          font-size: 26px;}""")
        lbl.setGeometry(7, 20, 586, 30)


        self.setAttribute(Qt.Qt.WA_TranslucentBackground, True )   
        self.setAttribute(Qt.Qt.WA_NoSystemBackground, False)      
        self.setWindowFlags(Qt.Qt.FramelessWindowHint)

        self.setStyleSheet("Principal{background-color: rgba(0, 215, 55, 70);}") 


  #El valor de 20 es el filtro alfa para la transparencia pero no funciona

        self.boton1 = Qt.QPushButton("Quit", self)
        self.boton1.setAutoFillBackground(False)
        self.boton1.setStyleSheet("background-color: qlineargradient(spread:pad, x1:0.988818, y1:0.915, x2:0, y2:0, stop:0 rgba(53, 129, 90, 255), stop:1 rgba(255, 255, 255, 255));\n"
"font: 75 16pt \"Georgia\";")
        self.boton1.setGeometry(225, 170, 150, 150)
        self.boton1.clicked.connect(self.close)
        self.setGeometry(350,150,600,400)

app = QApplication(sys.argv)
p = Principal()
p.show()
app.exec_()