How Do You Deal With Win32 Icon Overlays?

This article can help you if your computer has a Win32 icon superimposed on it.

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    win32 icon overlay

    Requirement: Add to icon overlay folder if it’s still a Python package


    Elements most often match symbols (those little bitmaps that appear at the bottom leftThe corner of the icons (like the shortcut arrow) belongs to the Windows area and is also known as shell extensions. (It never bothered me that much, but I can imagine how these confusing peoplecomes from * nix info, where shell is everything until it’s started windowSubsystem to find out that here in Windows shell programming this is what windowing is.subsystem!)

    The whole wrapper, the API seems to have been designed in some kind of isolation.relaxation. Windows API. There are a few typical things you can do anyway,but most things can only be done with the shell. And icon overlaysone of those things. But if you are looking for examples of implementation in the market, youapologies if anyone is thinking of retreating, pale and trembling. But luckily, once you’ve crossed overCOM related vocabulary and the C ++ / ATL mess that usually tends to obscure realityCode according to what examples you can think of online, the basic idea is very simple. And thanks togreat work of the pywin32 dev team that has never been difficult to implement in Python.

    Setting up a shell extension is very easy, in just a few * steps:

    1. Create a class that implements the devices required by the shell extension.
    2. Register it again as a COM server and restart it frequently nik.
    3. Use it with a shell extension.

    Basically, shell extensions are a callback mechanism. You have built a seriescallback methods with new class according to MS docs, save asThe COM server of the class is of the correct type and the web address of the COM server in the validation extension in the registryWhen Commit sees that it needs a great overlay manager, for example, it scans the locationFind your handlers, instantiate your Internet COM computer, and call whatever methods you have.implemented. Not ?

    Simple Code

    import operating systemfrom import window, shellconimport winerrorIconOverlay class: _reg_clsid_ = ‘4FC554DF-F0EE-4A4F-966C-9C49CCF14D59’ _reg_progid_ means “TJG.PythonPackagesOverlayHandler” _reg_desc_ = ‘Icon Overlay Manager for Displaying Python Packages’ _public_methods_ = [‘GetOverlayInfo’, ‘GetPriority’, ‘IsMemberOf’] _com_interfaces_ = [shell.IID_IShellIconOverlayIdentifier] outl getoverlayinfo (auto): repeat (r’C: Program Files TortoiseHg icons status add.ico ‘, 0, shellcon.ISIOI_ICONFILE) Def GetPriority (myself): 50 wins Def IsMemberOf (self, fname, attribute): whenever os.path.exists exists, this is (os.path.join (fname, “”)): winerror return.S_OK Return Winerror.E_FAILif __name __ == ‘__ main__’: import win32api win32con import win32com import.server.register win32com.server.register.UseCommandLine (IconOverlay) Key name = r’Software Microsoft Windows CurrentVersion Explorer ShellIconOverlayIdentifiers PyPackageOverlay ‘ key means win32api.RegCreateKey (win32con.HKEY_LOCAL_MACHINE, key name) win32api.RegSetValue (key, no, win32con.REG_SZ, IconOverlay._reg_clsid_)


    The time allocated for the GUID for _reg_clsid_ must of course be specially designed.of you. You can use pythoncom.CreateGuid for this. Name andObviously, the descriptions will be flexible in all cases. _public_methods_ and _com_interfaces_should be left alone.

    For web presentation purposes, I am using an overlay image from TortoiseHg.adjust. If you prefer it to be installed, you can view it fromhereor just use someone else.

    If the COM server represented by the class here is running,GetOverlayInfo can be called to return a known message, which will bewith overlays [*] ,and GetPriority is called to make sure you got some kind of notificationmost important Ageda among cooperating managers about overlay icons. it won’t help youThe manager hit someone else, but you only care about one thingin some kind of manual notation and you have many handlers to useagree on this.

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  • Whenever Explorer expects to display a file or directory, it callssee the IsMemberOf method of any registered overlay handler to be able toIf you are interested in the overlay, I would say the file icon. It means thatManagers who are not interested in the best file should quickly return As e_failhow can he understand. (And also shouldn’t return S_OK for too long). Basedbecause back Explorer has overlaid your icon according to the file iconStandardized symbol.

    * I am using .file, ico, so all other settingsthe position shown is zero, but also the third parameter indicates that manyThe icon file is in use. To use a .exe or .dll filled with characters gothis is the filename as the first parameter, specify which market symbol you want to useSelect the second parameterp and pass shellcon.ISIOI_ICONINDEX as the third.Parameter.

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