def _notify(klass, hwnd, msg, wparam, lparam):
self = klass._instance[hwnd]
if lparam == win32con.WM_LBUTTONDBLCLK:
menu = self.get_popup()
wid = win32gui.GetMenuDefaultItem(menu, 0, 0)
if 0 < wid:
win32gui.PostMessage(hwnd, win32con.WM_COMMAND, wid, 0)
elif lparam == win32con.WM_RBUTTONUP:
menu = self.get_popup()
pos = win32gui.GetCursorPos()
win32gui.SetForegroundWindow(hwnd)
win32gui.TrackPopupMenu(menu, win32con.TPM_LEFTALIGN, pos[0],
pos[1], 0, hwnd, None)
win32gui.PostMessage(hwnd, win32con.WM_NULL, 0, 0)
elif lparam == win32con.WM_LBUTTONUP:
pass
return True
def OnNotify(self, hwnd, msg, wparam, lparam):
hwndFrom, idFrom, code = win32gui_struct.UnpackWMNOTIFY(lparam)
# print "OnNotify code=0x%x (0x%x, 0x%x)" % (code, wparam, lparam)
if code == commctrl.NM_SETFOCUS:
# Control got focus - Explorer may not know - tell it
if self.browser is not None:
self.browser.OnViewWindowActive(None)
# And do our menu thang
self._OnActivate(shellcon.SVUIA_ACTIVATE_FOCUS)
elif code == commctrl.NM_KILLFOCUS:
self._OnDeactivate()
elif code == commctrl.NM_DBLCLK:
# This DblClick implementation leaves a little to be desired :)
# It demonstrates some useful concepts, such as asking the
# folder for its context-menu and invoking a command from it.
# However, as our folder delegates IContextMenu to the shell
# itself, the end result is that the folder is opened in
# its "normal" place in Windows explorer rather than inside
# our shell-extension.
# Determine the selected items.
sel = []
n = -1
while 1:
n = win32gui.SendMessage(self.hwnd_child,
commctrl.LVM_GETNEXTITEM, n,
commctrl.LVNI_SELECTED)
if n == -1:
break
sel.append(self.children[n][-1:])
print("Selection is", sel)
hmenu = win32gui.CreateMenu()
try:
# Get the IContextMenu for the items.
inout, cm = self.folder.GetUIObjectOf(self.hwnd_parent, sel,
shell.IID_IContextMenu,
0)
# As per 'Q179911', we need to determine if the default operation
# should be 'open' or 'explore'
flags = shellcon.CMF_DEFAULTONLY
try:
self.browser.GetControlWindow(shellcon.FCW_TREE)
flags |= shellcon.CMF_EXPLORE
except pythoncom.com_error:
pass
# *sob* - delegating to the shell does work - but lands us
# in the original location. Q179911 also shows that
# ShellExecuteEx should work - but I can't make it work as
# described (XP: function call succeeds, but another thread
# shows a dialog with text of E_INVALID_PARAM, and new
# Explorer window opens with desktop view. Vista: function
# call succeeds, but no window created at all.
# On Vista, I'd love to get an IExplorerBrowser interface
# from the shell, but a QI fails, and although the
# IShellBrowser does appear to support IServiceProvider, I
# still can't get it
if 0:
id_cmd_first = 1 # TrackPopupMenu makes it hard to use 0
cm.QueryContextMenu(hmenu, 0, id_cmd_first, -1, flags)
# Find the default item in the returned menu.
cmd = win32gui.GetMenuDefaultItem(hmenu, False, 0)
if cmd == -1:
print(
"Oops: _doDefaultActionFor found no default menu")
else:
ci = 0, self.hwnd_parent, cmd - id_cmd_first, None, None, 0, 0, 0
cm.InvokeCommand(ci)
else:
rv = shell.ShellExecuteEx(hwnd=self.hwnd_parent,
nShow=win32con.SW_NORMAL,
lpClass="folder",
lpVerb="explore",
lpIDList=sel[0])
print("ShellExecuteEx returned", rv)
finally:
win32gui.DestroyMenu(hmenu)
