Get Associated Filetype Icon for a File

Question

What I Want

I'm trying to write a function which takes in a filename and returns the icon of the application that is associated with the file's filetype on my system (which is Windows 7).

What I've Tried

I've seen this question, but the answer isn't giving me the details I need. I'm not very familiar with the ctypes module and I find the docs on the VC++ functions difficult to follow.

I also saw this question, but I get stuck on the first hurdle. When I try:

import _winreg
_winreg.OpenKey(_winreg.HKEY_CURRENT_USER, 'Software\Microsoft\CurrentVersion\Explorer\FileExts')

It raises a WindowsError: [Error 2] The system cannot find the file specified

Even when I do

_winreg.OpenKey(_winreg.HKEY_CURRENT_USER, 'Software\Microsoft')

Which returns a PyHKEY object, any 'key' action I try perform on it raises a TypeError: The object is not a PyHKEY object

Answer 1

I've found an answer here

the code from the link is:

import win32ui
import win32gui
import win32con
import win32api
import cStringIO
import Image

tempDirectory = os.getenv("temp")
ico_x = win32api.GetSystemMetrics(win32con.SM_CXICON)

dst = cStringIO.StringIO()

large, small = win32gui.ExtractIconEx(path,0)
win32gui.DestroyIcon(small[0])

#creating a destination memory DC
hdc = win32ui.CreateDCFromHandle( win32gui.GetDC(0) )
hbmp = win32ui.CreateBitmap()
hbmp.CreateCompatibleBitmap(hdc, ico_x, ico_x)
hdc = hdc.CreateCompatibleDC()

hdc.SelectObject( hbmp )

#draw a icon in it
hdc.DrawIcon( (0,0), large[0] )
win32gui.DestroyIcon(large[0])

#convert picture
hbmp.SaveBitmapFile( hdc, tempDirectory + "\Icontemp.bmp")

im = Image.open(tempDirectory + "\Icontemp.bmp")
im.save(dst, "JPEG")

dst.seek(0)

os.remove(tempDirectory + "\Icontemp.bmp")    
return dst.read()