PyQt6 制作半透明png背景的窗体

import sys,time
from PyQt6.QtCore import Qt
from PyQt6.QtGui import QImage
from PyQt6.QtWidgets import QApplication, QMainWindow

from PyQt6.QtGui import QPainter

class Img(QMainWindow):
    def __init__(self, img_path, parent=None):
        super().__init__(parent)
        self.qimg = QImage(img_path)
        self.setStyleSheet('QMainWindow {background:transparent}')
        self.setWindowFlags(
            Qt.WindowType.WindowStaysOnTopHint |
            Qt.WindowType.FramelessWindowHint |
            Qt.WindowType.WindowTransparentForInput
        )
        self.setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground)
        
    def paintEvent(self, qpaint_event):
        painter = QPainter(self)
        rect = qpaint_event.rect()
        painter.drawImage(rect, self.qimg)
        #self.showFullScreen()
        painter.end()
        

app = QApplication([])

img_path = 'pyqt5/bg_1080.png'
window = Img(img_path)
#window.resize(1920,1080)
window.showFullScreen()

sys.exit(app.exec())

import sys,time
from PyQt6.QtCore import Qt
from PyQt6.QtGui import QImage
from PyQt6.QtWidgets import QApplication, QMainWindow

from PyQt6.QtGui import QPainter

class Img(QMainWindow):
    def __init__(self, img_path, parent=None):
        super().__init__(parent)
        self.qimg = QImage(img_path)
        self.setStyleSheet('QMainWindow {background:transparent}')
        self.setWindowFlags(
            Qt.WindowType.WindowStaysOnTopHint |
            Qt.WindowType.FramelessWindowHint |
            Qt.WindowType.WindowTransparentForInput
        )
        self.setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground)
        
    def paintEvent(self, qpaint_event):
        painter = QPainter(self)
        rect = qpaint_event.rect()
        painter.drawImage(rect, self.qimg)
        #self.showFullScreen()
        painter.end()
        

app = QApplication([])

img_path = 'pyqt5/bg_1080.png'
window = Img(img_path)
#window.resize(1920,1080)
window.showFullScreen()

sys.exit(app.exec())

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