As quark said, the functionality is not in Qt 4.5, but you can call the windows API directly from Qt. Its a little bit of work though.
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The new taskbar API is exposed through COM, so you can’t use ctypes.windll . You need to create a .tlb file to access the functions. Get the interface definition for ITaskbarList from this forum post , or from the windows SDK. Save it to a file called e.g. TaskbarLib.idl .
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Create the .tlb file. You’ll probably need the Windows SDK, or get an IDL compiler from somewhere else.
midl TaskbarLib.idl /tlb TaskbarLib.tlb
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Load the .tlb (you need the Win32 Extensions for Python, http://python.net/crew/skippy/win32/Downloads.html):
import comtypes.client as cc cc.GetModule("TaskbarLib.tlb")
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Create the TaskbarList object. The function for setting the progress bar is in the interface ITaskbarList3:
import comtypes.gen.TaskbarLib as tbl taskbar = cc.CreateObject( "{56FDF344-FD6D-11d0-958A-006097C9A090}", interface=tbl.ITaskbarList3)
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Now you can call the API functions:
taskbar.HrInit() taskbar.SetProgressValue(self.winId(),40,100)
Here’s a complete example script.
Sources:
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