I've been meaning to look at how this works for some time,
so I took a few minutes to cook up an example (attached).
Roger
import win32com
import pythoncom
from win32com.shell import shell, shellcon
import win32api, win32con, winerror
class SIOI:
_reg_clsid_='{02844251-42C2-44CA-B43D-424FCE4F4660}'
_reg_progid_='Python.IShellIconOverlayIdentifier'
_reg_desc_='Python implementation of IShellIconOverlayIdentifier'
_public_methods_ = ['GetOverlayInfo','GetPriority','IsMemberOf']
_com_interfaces_=[shell.IID_IShellIconOverlayIdentifier,
pythoncom.IID_IDispatch]
def GetOverlayInfo(self):
return (r'J:\Program
Files\TortoiseCVS\icons\TortoiseCVS\TortoiseConflict.ico', 0,
shellcon.ISIOI_ICONFILE)
def GetPriority(self):
return 50
def IsMemberOf(self, fname, attributes):
if fname.lower().find('overlay')!=-1:
return winerror.S_OK
## ??? Returning S_FALSE does not seem to work, overlay is
always displayed ???
return winerror.E_FAIL
if __name__=='__main__':
import win32com.server.register
win32com.server.register.UseCommandLine(SIOI)
keyname=r'Software\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\PyOverlayHandler'
key=win32api.RegCreateKey(win32con.HKEY_LOCAL_MACHINE, keyname)
win32api.RegSetValue(key, None, win32con.REG_SZ, SIOI._reg_clsid_)
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