我希望我的PyQt5程序是无框架的,并且始终位于屏幕顶部。当我使用WindowStayOnTopHint时,它可以正常工作,但是当我将其与FramelessWindowHint一起使用时,它变为无框架,但不会停留在屏幕顶部。经过研究后,我找到了this,并说它尝试使用setMask,但我无法使其正常工作。
这是我的代码:
import sys
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QFont
from PyQt5.QtWidgets import QApplication, QLabel
class Invisible(QLabel):
def __init__(self, **kwargs):
super().__init__(**kwargs)
self.__press_pos = None
self.initUI()
def initUI(self):
self.setWindowFlags(Qt.WindowStaysOnTopHint)
self.setMask() #This is where I use the setMask function, but it raises an error
self.setAttribute(Qt.WA_TranslucentBackground)
self.setText("Drag me...")
self.setFont(QFont("Times", 50, QFont.Bold))
self.adjustSize()
self.move(QApplication.instance().desktop().screen().rect().center()
- self.rect().center())
def mousePressEvent(self, event):
if event.button() == Qt.LeftButton:
self.__press_pos = event.pos()
def mouseReleaseEvent(self, event):
if event.button() == Qt.LeftButton:
self.__press_pos = None
def mouseMoveEvent(self, event):
if self.__press_pos:
self.move(self.pos() + (event.pos() - self.__press_pos))
def main():
app = QApplication(sys.argv)
w = Invisible()
w.show()
return app.exec_()
if __name__ == '__main__':
sys.exit(main())
这段代码给了我错误:
TypeError: arguments did not match any overloaded call:
setMask(self, QBitmap): not enough arguments
setMask(self, QRegion): not enough arguments
它要求更多的参数,但是当我给它更多的参数时,它表示参数太多。
我该如何解决?
最佳答案
您遇到的问题是必须使用运算符|
激活两个属性。
self.setWindowFlags(Qt.WindowStaysOnTopHint | Qt.FramelessWindowHint)
完整的代码:
import sys
from PyQt5.QtCore import Qt, QPoint
from PyQt5.QtGui import QFont
from PyQt5.QtWidgets import QApplication, QLabel, QStyle
class Invisible(QLabel):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.__press_pos = QPoint()
self.initUI()
def initUI(self):
self.setWindowFlags(Qt.WindowStaysOnTopHint | Qt.FramelessWindowHint)
self.setAttribute(Qt.WA_TranslucentBackground)
self.setText("Drag me...")
self.setFont(QFont("Times", 50, QFont.Bold))
self.adjustSize()
self.setGeometry(
QStyle.alignedRect(
Qt.LeftToRight,
Qt.AlignCenter,
self.size(),
QApplication.instance().desktop().availableGeometry()
)
)
def mousePressEvent(self, event):
if event.button() == Qt.LeftButton:
self.__press_pos = event.pos()
def mouseReleaseEvent(self, event):
if event.button() == Qt.LeftButton:
self.__press_pos = QPoint()
def mouseMoveEvent(self, event):
if not self.__press_pos.isNull():
self.move(self.pos() + (event.pos() - self.__press_pos))
def main():
app = QApplication(sys.argv)
w = Invisible()
w.show()
return app.exec_()
if __name__ == '__main__':
sys.exit(main())
setMask()
用于为小部件提供不同的边框,例如对于example我得到以下内容: