I have been dealing with the qt programming using Python. Till now i mainl created simple GUI working as a on screen display or making simple jobs. I was trying to creade an on screen display. I needed to create transparent window application. After searching and trying here is a simple python code that uses qt4 library that creates a window which includes a transparent png image inside.
import sys
from PyQt4 import QtGui, Qt, QtCore
class Transparent(QtGui.QWidget):
def __init__(self):
QtGui.QWidget.__init__(self)
self.setAttribute(Qt.Qt.WA_NoSystemBackground)
self.setAutoFillBackground(True)
pixmap = QtGui.QPixmap("test.png")
width = pixmap.width()
height = pixmap.height()
self.setWindowTitle("Status")
self.resize(width, height)
self.label = QtGui.QLabel(self)
self.label.setPixmap(QtGui.QPixmap("test.png"))
self.setMask(pixmap.mask())
def paintEvent(self,event):
self.setAttribute(Qt.Qt.WA_NoSystemBackground)
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
x = Transparent()
x.show()
app.exec_()
