from PySide2.QtGui import QPainter, QImage # Create a transparent image for painting image = QImage(400, 400, QImage.Format_ARGB32) image.fill(0) # Create a painter instance painter = QPainter() painter.begin(image) # Set the painter color transparency level to 0.5 painter.setOpacity(0.5) # Draw shapes or objects with the set opacity level painter.drawLine(0, 0, 200, 200) painter.drawRect(100, 100, 200, 200) painter.drawText(50, 50, "Hello World!") painter.end()
from PySide2.QtWidgets import QApplication, QWidget, QVBoxLayout, QPushButton from PySide2.QtGui import QPainter, QColor, QBrush import sys class MyWidget(QWidget): def __init__(self): super().__init__() self.resize(300,300) self.setWindowTitle('Transparent Widget') def paintEvent(self, event): painter = QPainter(self) painter.setOpacity(0.5) painter.setPen(QColor(0, 0, 0)) painter.setBrush(QBrush(QColor(100, 100, 100))) painter.drawRect(0, 0, 300, 300) app = QApplication(sys.argv) widget = MyWidget() widget.show() sys.exit(app.exec_())The above code creates a transparent widget window using the PySide2.QtWidgets.QWidget class. In the paintEvent method, QPainter is used to draw a rectangle with 50% transparency. The [Sys module][1] is used to execute the application and run the event loop. Package Library: The PySide2.QtGui module belongs to the PySide2 package library. The PySide2 package is a cross-platform software development kit that allows developers to create Python applications that contain graphical user interface elements. The PySide2.QtGui module provides a wide range of graphical user interface components, which includes QColor, QPainter, QBrush, QPen, QImage, QCursor, QPalette, QTransform, QPixmap and many more tools that help in designing a GUI application. [1]: https://docs.python.org/3/library/sys.html