Question

I m using PyQt to capture my screen with QPixmap.grabWindow(QApplication.desktop().winId()) and I was wondering if there was a way I could display my screengrab fullscreen (no window borders, etc.) I m trying to find a way to desaturate my display with PyQt

Answer 1

Passing QtCore.Qt.FramelessWindowHint to the QWidget constructor in symphony with self.showFullScreen() in the image widget s code achieves this.

Answer 2

A PyQt6 working example of the solution as described by directedition.

Qt.WindowType.FramelessWindowHint produces a borderless window, doc. Notice that it can be either passed as flags argument in the constructor or fixed in a second moment with setWindowFlags
showFullScreen() shows the widget in full-screen mode, doc

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


class Img(QMainWindow):
    def __init__(self, img_path, parent=None):
        super().__init__(parent)
        self.qimg = QImage(img_path)

        self.setWindowFlags(Qt.WindowType.FramelessWindowHint) 

    def paintEvent(self, qpaint_event):
        # event handler of QWidget triggered when, for ex, painting on the widget’s background.
        painter = QPainter(self)
        rect = qpaint_event.rect() # Returns the rectangle that needs to be updated
        painter.drawImage(rect, self.qimg)
        self.showFullScreen()


if __name__ == "__main__":
    app = QApplication(sys.argv)
    
    img_path = # add path of the image

    window = Img(img_path)
    window.show()
    
    sys.exit(app.exec())

友情链接