Setting the Windows taskbar icon in PyQt

Question

I'm working on an applcation in Python's PyQt4 and cannot find how to change the taskbar icon. I made my .ui files in Qt's Designer, where I can change the windowIcon properties. But that is not what I am looking for. I want to change the look of the application's icon in windows taskbar. For now it is Python logo in a window icon.

I found some information on SO: link but it's not helping me much.

I tried:

app = QtGui.QApplication([]) app.setWindowIcon(QtGui.QIcon('chip_icon_normal.png')) app.exec_() 

But the icon remains unchanged.

What i want to change, showing the picture: (This is done calling the setWindowIcon on main window/ dialog, or the application, as shown above.)

Answer 1

This problem is caused by some peculiarities in how taskbar icons are handled on the Windows platform.

See this answer for details, along with a workaround using ctypes.

Answer 2

It seems to me that the problem may be caused by lack of icon with the right size. The following setup worked for me in PyQT4:

# set app icon     app_icon = QtGui.QIcon() app_icon.addFile('gui/icons/16x16.png', QtCore.QSize(16,16)) app_icon.addFile('gui/icons/24x24.png', QtCore.QSize(24,24)) app_icon.addFile('gui/icons/32x32.png', QtCore.QSize(32,32)) app_icon.addFile('gui/icons/48x48.png', QtCore.QSize(48,48)) app_icon.addFile('gui/icons/256x256.png', QtCore.QSize(256,256)) app.setWindowIcon(app_icon) 

I have got a task bar icon in Windows 7 and correct icons in all windows without any changes to ui files.