Python win32api.GetModuleHandle() Examples

def __init__(self):
        msg_TaskbarRestart = win32gui.RegisterWindowMessage("TaskbarCreated");
        message_map = {
                msg_TaskbarRestart: self.OnRestart,
                win32con.WM_DESTROY: self.OnDestroy,
                win32con.WM_COMMAND: self.OnCommand,
                win32con.WM_USER+20 : self.OnTaskbarNotify,
        }
        # Register the Window class.
        wc = win32gui.WNDCLASS()
        hinst = wc.hInstance = win32api.GetModuleHandle(None)
        wc.lpszClassName = "PythonTaskbarDemo"
        wc.style = win32con.CS_VREDRAW | win32con.CS_HREDRAW;
        wc.hCursor = win32api.LoadCursor( 0, win32con.IDC_ARROW )
        wc.hbrBackground = win32con.COLOR_WINDOW
        wc.lpfnWndProc = message_map # could also specify a wndproc.

        # Don't blow up if class already registered to make testing easier
        try:
            classAtom = win32gui.RegisterClass(wc)
        except win32gui.error, err_info:
            if err_info.winerror!=winerror.ERROR_CLASS_ALREADY_EXISTS:
                raise

        # Create the Window. 

def __init__(self):
    message_map = {
      win32con.WM_DEVICECHANGE : self.onDeviceChange
    }
    
    wc = win32gui.WNDCLASS ()
    hinst = wc.hInstance = win32api.GetModuleHandle (None)
    wc.lpszClassName = "DeviceChangeDemo"
    wc.style = win32con.CS_VREDRAW | win32con.CS_HREDRAW;
    wc.hCursor = win32gui.LoadCursor (0, win32con.IDC_ARROW)
    wc.hbrBackground = win32con.COLOR_WINDOW
    wc.lpfnWndProc = message_map
    classAtom = win32gui.RegisterClass (wc)
    style = win32con.WS_OVERLAPPED | win32con.WS_SYSMENU
    self.hwnd = win32gui.CreateWindow (
      classAtom,
      "Device Change Demo",
      style,
      0, 0,
      win32con.CW_USEDEFAULT, win32con.CW_USEDEFAULT,
      0, 0,
      hinst, None
    ) 

def __init__(self):
        message_map = {
            win32con.WM_DEVICECHANGE: self.onDeviceChange
        }

        wc = win32gui.WNDCLASS()
        hinst = wc.hInstance = win32api.GetModuleHandle(None)
        wc.lpszClassName = "DeviceChangeDemo"
        wc.style = win32con.CS_VREDRAW | win32con.CS_HREDRAW
        wc.hCursor = win32gui.LoadCursor(0, win32con.IDC_ARROW)
        wc.hbrBackground = win32con.COLOR_WINDOW
        wc.lpfnWndProc = message_map
        classAtom = win32gui.RegisterClass(wc)
        style = win32con.WS_OVERLAPPED | win32con.WS_SYSMENU
        self.hwnd = win32gui.CreateWindow(
            classAtom,
            "Device Change Demo",
            style,
            0, 0,
            win32con.CW_USEDEFAULT, win32con.CW_USEDEFAULT,
            0, 0,
            hinst, None
        ) 

def _set_icon(self, icon_path=None):
        """Load the tray icon.

        Doesn't appear to be editable once it's been set.
        TODO: Look at http://www.brunningonline.net/simon/blog/archives/SysTrayIcon.py.html on how to edit it.
        """

        #Load icon as an image
        try:
            if icon_path is None or not os.path.isfile(icon_path):
                raise TypeError
            icon_flags = win32con.LR_LOADFROMFILE | win32con.LR_DEFAULTSIZE
            hinst = win32api.GetModuleHandle(None)
            hicon = win32gui.LoadImage(hinst, icon_path, win32con.IMAGE_ICON, 0, 0, icon_flags)
        
        #Fallback to default windows icon
        except TypeError:
            hicon = win32gui.LoadIcon(0, win32con.IDI_APPLICATION)
        
        flags = win32gui.NIF_ICON | win32gui.NIF_MESSAGE | win32gui.NIF_TIP
        nid = (self.hwnd, 0, flags, TRAY_EVENT, hicon, self.program_name)
        try:
            win32gui.Shell_NotifyIcon(win32gui.NIM_ADD, nid)
        except win32gui.error:
            # This is common when windows is starting, and this code is hit
            # before the taskbar has been created.
            # but keep running anyway - when explorer starts, we get the
            # TaskbarCreated message.
            pass

        self.logger.debug('Set tray icon.') 

def CreateViewWindow(self, prev, settings, browser, rect):
        print "ScintillaShellView.CreateViewWindow", prev, settings, browser, rect
        # Make sure scintilla.dll is loaded.  If not, find it on sys.path
        # (which it generally is for Pythonwin)
        try:
            win32api.GetModuleHandle("Scintilla.dll")
        except win32api.error:
            for p in sys.path:
                fname = os.path.join(p, "Scintilla.dll")
                if not os.path.isfile(fname):
                    fname = os.path.join(p, "Build", "Scintilla.dll")
                if os.path.isfile(fname):
                    win32api.LoadLibrary(fname)
                    break
            else:
                raise RuntimeError("Can't find scintilla!")

        style = win32con.WS_CHILD | win32con.WS_VSCROLL | \
                win32con.WS_HSCROLL | win32con.WS_CLIPCHILDREN | \
                win32con.WS_VISIBLE
        self.hwnd = win32gui.CreateWindow("Scintilla", "Scintilla", style,
                              rect[0], rect[1], rect[2]-rect[0], rect[3]-rect[1], 
                              self.hwnd_parent, 1000, 0, None)

        message_map = {
                win32con.WM_SIZE: self.OnSize,
        }
#        win32gui.SetWindowLong(self.hwnd, win32con.GWL_WNDPROC, message_map)

        file_data = file(self.filename, "U").read()

        self._SetupLexer()
        self._SendSci(scintillacon.SCI_ADDTEXT, len(file_data), file_data)
        if self.lineno != None:
            self._SendSci(scintillacon.SCI_GOTOLINE, self.lineno)
        print "Scintilla's hwnd is", self.hwnd 

def __loadFromFile(self, iconPath):
        hinst = win32api.GetModuleHandle(None)
        icon_flags = win32con.LR_LOADFROMFILE | win32con.LR_DEFAULTSIZE
        hicon = win32gui.LoadImage(
            hinst,
            iconPath,
            win32con.IMAGE_ICON,
            0,
            0,
            icon_flags,
        )
        return hicon 

def __init__(self):
        # Register window class; it's okay to do this multiple times
        wc = WNDCLASS()
        wc.lpszClassName = 'ServoTaskbarNotification'
        wc.lpfnWndProc = {win32con.WM_DESTROY: self.OnDestroy, }
        self.classAtom = RegisterClass(wc)
        self.hinst = wc.hInstance = GetModuleHandle(None) 

def _RegisterWndClass(self):
        message_map = {}
        wc = win32gui.WNDCLASS()
        wc.SetDialogProc()  # Make it a dialog class.
        wc.hInstance = self.hinst
        wc.lpszClassName = self.className
        wc.style = win32con.CS_VREDRAW | win32con.CS_HREDRAW
        wc.hCursor = win32gui.LoadCursor(0, win32con.IDC_ARROW)
        wc.hbrBackground = win32con.COLOR_WINDOW + 1
        wc.lpfnWndProc = message_map    # could also specify a wndproc.

        # C code: wc.cbWndExtra = DLGWINDOWEXTRA + sizeof(HBRUSH) +
        #                         (sizeof(COLORREF));
        wc.cbWndExtra = win32con.DLGWINDOWEXTRA + struct.calcsize("Pi")

        #  py.ico went away in python 2.5, load from executable instead
        this_app = win32api.GetModuleHandle(None)
        try:
            # python.exe and pythonw.exe
            wc.hIcon = win32gui.LoadIcon(this_app, 1)
        except win32gui.error:
            # pythonwin's icon
            wc.hIcon = win32gui.LoadIcon(this_app, 135)
        try:
            self.classAtom = win32gui.RegisterClass(wc)
        except win32gui.error, err_info:
            if err_info.winerror != winerror.ERROR_CLASS_ALREADY_EXISTS:
                raise 

def _DoCreateIcons(self):
        # Try and find a custom icon
        hinst =  win32api.GetModuleHandle(None)
        iconPathName = os.path.abspath(os.path.join( os.path.split(sys.executable)[0], "pyc.ico" ))
        if not os.path.isfile(iconPathName):
            # Look in DLLs dir, a-la py 2.5
            iconPathName = os.path.abspath(os.path.join( os.path.split(sys.executable)[0], "DLLs", "pyc.ico" ))
        if not os.path.isfile(iconPathName):
            # Look in the source tree.
            iconPathName = os.path.abspath(os.path.join( os.path.split(sys.executable)[0], "..\\PC\\pyc.ico" ))
        if os.path.isfile(iconPathName):
            icon_flags = win32con.LR_LOADFROMFILE | win32con.LR_DEFAULTSIZE
            hicon = win32gui.LoadImage(hinst, iconPathName, win32con.IMAGE_ICON, 0, 0, icon_flags)
        else:
            print "Can't find a Python icon file - using default"
            hicon = win32gui.LoadIcon(0, win32con.IDI_APPLICATION)

        flags = win32gui.NIF_ICON | win32gui.NIF_MESSAGE | win32gui.NIF_TIP
        nid = (self.hwnd, 0, flags, win32con.WM_USER+20, hicon, "Python Demo")
        try:
            win32gui.Shell_NotifyIcon(win32gui.NIM_ADD, nid)
        except win32gui.error:
            # This is common when windows is starting, and this code is hit
            # before the taskbar has been created.
            print "Failed to add the taskbar icon - is explorer running?"
            # but keep running anyway - when explorer starts, we get the
            # TaskbarCreated message. 

def _RegisterWndClass(self):
        className = "PythonDocSearch"
        message_map = {}
        wc = win32gui.WNDCLASS()
        wc.SetDialogProc() # Make it a dialog class.
        wc.hInstance = self.hinst
        wc.lpszClassName = className
        wc.style = win32con.CS_VREDRAW | win32con.CS_HREDRAW
        wc.hCursor = win32gui.LoadCursor( 0, win32con.IDC_ARROW )
        wc.hbrBackground = win32con.COLOR_WINDOW + 1
        wc.lpfnWndProc = message_map # could also specify a wndproc.
        # C code: wc.cbWndExtra = DLGWINDOWEXTRA + sizeof(HBRUSH) + (sizeof(COLORREF));
        wc.cbWndExtra = win32con.DLGWINDOWEXTRA + struct.calcsize("Pi")
        icon_flags = win32con.LR_LOADFROMFILE | win32con.LR_DEFAULTSIZE

        ## py.ico went away in python 2.5, load from executable instead
        this_app=win32api.GetModuleHandle(None)
        try:
            wc.hIcon=win32gui.LoadIcon(this_app, 1)    ## python.exe and pythonw.exe
        except win32gui.error:
            wc.hIcon=win32gui.LoadIcon(this_app, 135)  ## pythonwin's icon
        try:
            classAtom = win32gui.RegisterClass(wc)
        except win32gui.error, err_info:
            if err_info.winerror!=winerror.ERROR_CLASS_ALREADY_EXISTS:
                raise 

def CreateViewWindow(self, prev, settings, browser, rect):
        print "ScintillaShellView.CreateViewWindow", prev, settings, browser, rect
        # Make sure scintilla.dll is loaded.  If not, find it on sys.path
        # (which it generally is for Pythonwin)
        try:
            win32api.GetModuleHandle("Scintilla.dll")
        except win32api.error:
            for p in sys.path:
                fname = os.path.join(p, "Scintilla.dll")
                if not os.path.isfile(fname):
                    fname = os.path.join(p, "Build", "Scintilla.dll")
                if os.path.isfile(fname):
                    win32api.LoadLibrary(fname)
                    break
            else:
                raise RuntimeError("Can't find scintilla!")

        style = win32con.WS_CHILD | win32con.WS_VSCROLL | \
                win32con.WS_HSCROLL | win32con.WS_CLIPCHILDREN | \
                win32con.WS_VISIBLE
        self.hwnd = win32gui.CreateWindow("Scintilla", "Scintilla", style,
                              rect[0], rect[1], rect[2]-rect[0], rect[3]-rect[1], 
                              self.hwnd_parent, 1000, 0, None)

        message_map = {
                win32con.WM_SIZE: self.OnSize,
        }
#        win32gui.SetWindowLong(self.hwnd, win32con.GWL_WNDPROC, message_map)

        file_data = file(self.filename, "U").read()

        self._SetupLexer()
        self._SendSci(scintillacon.SCI_ADDTEXT, len(file_data), file_data)
        if self.lineno != None:
            self._SendSci(scintillacon.SCI_GOTOLINE, self.lineno)
        print "Scintilla's hwnd is", self.hwnd 

def __init__(self):
        message_map = {
                win32con.WM_DESTROY: self.OnDestroy,
                win32con.WM_COMMAND: self.OnCommand,
                win32con.WM_SIZE: self.OnSize,
        }
        # Register the Window class.
        wc = win32gui.WNDCLASS()
        hinst = wc.hInstance = win32api.GetModuleHandle(None)
        wc.lpszClassName = "test_explorer_browser"
        wc.lpfnWndProc = message_map # could also specify a wndproc.
        classAtom = win32gui.RegisterClass(wc)
        # Create the Window.
        style = win32con.WS_OVERLAPPEDWINDOW | win32con.WS_VISIBLE
        self.hwnd = win32gui.CreateWindow( classAtom, "Python IExplorerBrowser demo", style, \
                0, 0, win32con.CW_USEDEFAULT, win32con.CW_USEDEFAULT, \
                0, 0, hinst, None)
        eb = pythoncom.CoCreateInstance(shellcon.CLSID_ExplorerBrowser, None, pythoncom.CLSCTX_ALL, shell.IID_IExplorerBrowser)
        # as per MSDN docs, hook up events early
        self.event_cookie = eb.Advise(wrap(EventHandler()))

        eb.SetOptions(shellcon.EBO_SHOWFRAMES)
        rect = win32gui.GetClientRect(self.hwnd)
        # Set the flags such that the folders autoarrange and non web view is presented
        flags = (shellcon.FVM_LIST, shellcon.FWF_AUTOARRANGE | shellcon.FWF_NOWEBVIEW)
        eb.Initialize(self.hwnd, rect, (0, shellcon.FVM_DETAILS))
        if len(sys.argv)==2:
            # If an arg was specified, ask the desktop parse it.
            # You can pass anything explorer accepts as its '/e' argument -
            # eg, "::{guid}\::{guid}" etc.
            # "::{20D04FE0-3AEA-1069-A2D8-08002B30309D}" is "My Computer"
            pidl = shell.SHGetDesktopFolder().ParseDisplayName(0, None, sys.argv[1])[1]
        else:
            # And start browsing at the root of the namespace.
            pidl = []
        eb.BrowseToIDList(pidl, shellcon.SBSP_ABSOLUTE)
        # and for some reason the "Folder" view in the navigator pane doesn't
        # magically synchronize itself - so let's do that ourself.
        # Get the tree control.
        sp = eb.QueryInterface(pythoncom.IID_IServiceProvider)
        try:
            tree = sp.QueryService(shell.IID_INameSpaceTreeControl,
                                   shell.IID_INameSpaceTreeControl)
        except pythoncom.com_error, exc:
            # this should really only fail if no "nav" frame exists...
            print "Strange - failed to get the tree control even though " \
                  "we asked for a EBO_SHOWFRAMES"
            print exc 

def __init__(self, menu_options, program_name='Python Taskbar', window_name=None):

        self.logger = logging.getLogger("tray")
        self.cache = {}
        self._commands = {'OnMenuOpen': [],
                          'OnMenuClose': [],
                          'OnWindowHide': [],
                          'OnWindowRestore': []}
        self.program_name = program_name
        try:
            self.console_hwnd = WindowHandle(parent=False, console=True)
        except NameError:
            self.console_hwnd = None
        self._refresh_menu(menu_options)
        if window_name is None:
            window_name = program_name

        #Set up callbacks
        msg_TaskbarRestart = win32gui.RegisterWindowMessage('TaskbarCreated')
        message_map = {
            msg_TaskbarRestart: self.OnRestart,
            win32con.WM_DESTROY: self.OnDestroy,
            win32con.WM_COMMAND: self.OnCommand,
            TRAY_EVENT: self.OnTaskbarNotify,
        }
        #Register the Window class.
        wc = win32gui.WNDCLASS()
        hinst = wc.hInstance = win32api.GetModuleHandle(None)
        wc.lpszClassName = window_name
        wc.style = win32con.CS_VREDRAW | win32con.CS_HREDRAW
        wc.hCursor = win32api.LoadCursor(0, win32con.IDC_ARROW)
        wc.hbrBackground = win32con.COLOR_WINDOW
        wc.lpfnWndProc = message_map # could also specify a wndproc.

        #Don't blow up if class already registered to make testing easier
        try:
            classAtom = win32gui.RegisterClass(wc)
        except (win32gui.error, err_info):
            if err_info.winerror!=winerror.ERROR_CLASS_ALREADY_EXISTS:
                raise

        #Create the Window.
        style = win32con.WS_OVERLAPPED | win32con.WS_SYSMENU
        self.hwnd = win32gui.CreateWindow(wc.lpszClassName, window_name, style, \
                0, 0, win32con.CW_USEDEFAULT, win32con.CW_USEDEFAULT, \
                0, 0, hinst, None)
        win32gui.UpdateWindow(self.hwnd)
        self._set_icon()
        self.logger.info('Window created.') 

def _show_toast(self, title, msg,
                    icon_path, duration):
        """Notification settings.

        :title: notification title
        :msg: notification message
        :icon_path: path to the .ico file to custom notification
        :duration: delay in seconds before notification self-destruction
        """
        message_map = {WM_DESTROY: self.on_destroy, }

        # Register the window class.
        self.wc = WNDCLASS()
        self.hinst = self.wc.hInstance = GetModuleHandle(None)
        self.wc.lpszClassName = str("PythonTaskbar")  # must be a string
        self.wc.lpfnWndProc = message_map  # could also specify a wndproc.
        try:
            self.classAtom = RegisterClass(self.wc)
        except:
            pass #not sure of this
        style = WS_OVERLAPPED | WS_SYSMENU
        self.hwnd = CreateWindow(self.classAtom, "Taskbar", style,
                                 0, 0, CW_USEDEFAULT,
                                 CW_USEDEFAULT,
                                 0, 0, self.hinst, None)
        UpdateWindow(self.hwnd)

        # icon
        if icon_path is not None:
            icon_path = path.realpath(icon_path)
        else:
            icon_path =  resource_filename(Requirement.parse("win10toast"), "win10toast/data/python.ico")
        icon_flags = LR_LOADFROMFILE | LR_DEFAULTSIZE
        try:
            hicon = LoadImage(self.hinst, icon_path,
                              IMAGE_ICON, 0, 0, icon_flags)
        except Exception as e:
            logging.error("Some trouble with the icon ({}): {}"
                          .format(icon_path, e))
            hicon = LoadIcon(0, IDI_APPLICATION)

        # Taskbar icon
        flags = NIF_ICON | NIF_MESSAGE | NIF_TIP
        nid = (self.hwnd, 0, flags, WM_USER + 20, hicon, "Tooltip")
        Shell_NotifyIcon(NIM_ADD, nid)
        Shell_NotifyIcon(NIM_MODIFY, (self.hwnd, 0, NIF_INFO,
                                      WM_USER + 20,
                                      hicon, "Balloon Tooltip", msg, 200,
                                      title))
        # take a rest then destroy
        sleep(duration)
        DestroyWindow(self.hwnd)
        UnregisterClass(self.wc.lpszClassName, None)
        return None 

def new_icon(hdesk,desktop_name):
    """ Runs as a thread on each desktop to create a new tray icon and handle its messages """ 
    global id
    id=id+1
    hdesk.SetThreadDesktop()
    ## apparently the threads can't use same hinst, so each needs its own window class
    windowclassname='PythonDesktopManager'+desktop_name
    wc = win32gui.WNDCLASS()
    wc.hInstance = win32api.GetModuleHandle(None)
    wc.lpszClassName = windowclassname
    wc.style = win32con.CS_VREDRAW | win32con.CS_HREDRAW | win32con.CS_GLOBALCLASS
    wc.hCursor = win32gui.LoadCursor( 0, win32con.IDC_ARROW )
    wc.hbrBackground = win32con.COLOR_WINDOW
    wc.lpfnWndProc = icon_wndproc
    windowclass = win32gui.RegisterClass(wc)
    style = win32con.WS_OVERLAPPED | win32con.WS_SYSMENU
    hwnd = win32gui.CreateWindow(windowclass, 'dm_'+desktop_name, win32con.WS_SYSMENU,
                    0, 0, win32con.CW_USEDEFAULT, win32con.CW_USEDEFAULT,
                    0, 0, wc.hInstance, None)
    win32gui.UpdateWindow(hwnd)
    flags = win32gui.NIF_ICON | win32gui.NIF_MESSAGE | win32gui.NIF_TIP
    notify_info = (hwnd, id, flags, win32con.WM_USER+20, hicon, 'Desktop Manager (%s)' %desktop_name)
    window_info[hwnd]=notify_info
    ## wait for explorer to initialize system tray for new desktop
    tray_found=0
    while not tray_found:
        try:
            tray_found=win32gui.FindWindow("Shell_TrayWnd",None)
        except win32gui.error:
            traceback.print_exc
            time.sleep(.5)
    win32gui.Shell_NotifyIcon(win32gui.NIM_ADD, notify_info)
    win32gui.PumpMessages() 

def __init__(self, iconPath=None):

        self.iconPath = iconPath
        self.status = []

        msg_TaskbarRestart = \
            win32api.RegisterWindowMessage('TaskbarCreated')
        message_map = {
            msg_TaskbarRestart: self.OnRestart,
            win32con.WM_DESTROY: self.OnDestroy,
            win32con.WM_COMMAND: self.OnCommand,
            win32con.WM_USER + 20: self.OnTaskbarNotify,
        }

        # Register the Window class.

        wc = win32gui.WNDCLASS()
        hinst = wc.hInstance = win32api.GetModuleHandle(None)
        wc.lpszClassName = 'web2pyTaskbar'
        wc.style = win32con.CS_VREDRAW | win32con.CS_HREDRAW
        wc.hCursor = win32gui.LoadCursor(0, win32con.IDC_ARROW)
        wc.hbrBackground = win32con.COLOR_WINDOW
        wc.lpfnWndProc = message_map  # could also specify a wndproc.
        classAtom = win32gui.RegisterClass(wc)

        # Create the Window.

        style = win32con.WS_OVERLAPPED | win32con.WS_SYSMENU
        self.hwnd = win32gui.CreateWindow(
            classAtom,
            'web2pyTaskbar',
            style,
            0,
            0,
            win32con.CW_USEDEFAULT,
            win32con.CW_USEDEFAULT,
            0,
            0,
            hinst,
            None,
        )
        win32gui.UpdateWindow(self.hwnd)
        self.SetServerStopped() 

def __init__(self):
        message_map = {
                win32con.WM_DESTROY: self.OnDestroy,
                win32con.WM_COMMAND: self.OnCommand,
                win32con.WM_SIZE: self.OnSize,
        }
        # Register the Window class.
        wc = win32gui.WNDCLASS()
        hinst = wc.hInstance = win32api.GetModuleHandle(None)
        wc.lpszClassName = "test_explorer_browser"
        wc.lpfnWndProc = message_map # could also specify a wndproc.
        classAtom = win32gui.RegisterClass(wc)
        # Create the Window.
        style = win32con.WS_OVERLAPPEDWINDOW | win32con.WS_VISIBLE
        self.hwnd = win32gui.CreateWindow( classAtom, "Python IExplorerBrowser demo", style, \
                0, 0, win32con.CW_USEDEFAULT, win32con.CW_USEDEFAULT, \
                0, 0, hinst, None)
        eb = pythoncom.CoCreateInstance(shellcon.CLSID_ExplorerBrowser, None, pythoncom.CLSCTX_ALL, shell.IID_IExplorerBrowser)
        # as per MSDN docs, hook up events early
        self.event_cookie = eb.Advise(wrap(EventHandler()))

        eb.SetOptions(shellcon.EBO_SHOWFRAMES)
        rect = win32gui.GetClientRect(self.hwnd)
        # Set the flags such that the folders autoarrange and non web view is presented
        flags = (shellcon.FVM_LIST, shellcon.FWF_AUTOARRANGE | shellcon.FWF_NOWEBVIEW)
        eb.Initialize(self.hwnd, rect, (0, shellcon.FVM_DETAILS))
        if len(sys.argv)==2:
            # If an arg was specified, ask the desktop parse it.
            # You can pass anything explorer accepts as its '/e' argument -
            # eg, "::{guid}\::{guid}" etc.
            # "::{20D04FE0-3AEA-1069-A2D8-08002B30309D}" is "My Computer"
            pidl = shell.SHGetDesktopFolder().ParseDisplayName(0, None, sys.argv[1])[1]
        else:
            # And start browsing at the root of the namespace.
            pidl = []
        eb.BrowseToIDList(pidl, shellcon.SBSP_ABSOLUTE)
        # and for some reason the "Folder" view in the navigator pane doesn't
        # magically synchronize itself - so let's do that ourself.
        # Get the tree control.
        sp = eb.QueryInterface(pythoncom.IID_IServiceProvider)
        try:
            tree = sp.QueryService(shell.IID_INameSpaceTreeControl,
                                   shell.IID_INameSpaceTreeControl)
        except pythoncom.com_error, exc:
            # this should really only fail if no "nav" frame exists...
            print "Strange - failed to get the tree control even though " \
                  "we asked for a EBO_SHOWFRAMES"
            print exc