Python winreg.KEY_QUERY_VALUE Examples

The following are 4 code examples of winreg.KEY_QUERY_VALUE(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module winreg , or try the search function .
Example #1
Source File: animation.py    From GraphicDesignPatternByPython with MIT License 6 votes vote down vote up 
def _init_from_registry(cls):
        if sys.platform != 'win32' or rcParams[cls.exec_key] != 'convert':
            return
        import winreg
        for flag in (0, winreg.KEY_WOW64_32KEY, winreg.KEY_WOW64_64KEY):
            try:
                hkey = winreg.OpenKeyEx(winreg.HKEY_LOCAL_MACHINE,
                                        r'Software\Imagemagick\Current',
                                        0, winreg.KEY_QUERY_VALUE | flag)
                binpath = winreg.QueryValueEx(hkey, 'BinPath')[0]
                winreg.CloseKey(hkey)
                break
            except Exception:
                binpath = ''
        if binpath:
            for exe in ('convert.exe', 'magick.exe'):
                path = os.path.join(binpath, exe)
                if os.path.exists(path):
                    binpath = path
                    break
            else:
                binpath = ''
        rcParams[cls.exec_key] = rcParamsDefault[cls.exec_key] = binpath
Example #2
Source File: animation.py    From python3_ios with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up 
def _init_from_registry(cls):
        if sys.platform != 'win32' or rcParams[cls.exec_key] != 'convert':
            return
        import winreg
        for flag in (0, winreg.KEY_WOW64_32KEY, winreg.KEY_WOW64_64KEY):
            try:
                hkey = winreg.OpenKeyEx(winreg.HKEY_LOCAL_MACHINE,
                                        r'Software\Imagemagick\Current',
                                        0, winreg.KEY_QUERY_VALUE | flag)
                binpath = winreg.QueryValueEx(hkey, 'BinPath')[0]
                winreg.CloseKey(hkey)
                break
            except Exception:
                binpath = ''
        if binpath:
            for exe in ('convert.exe', 'magick.exe'):
                path = os.path.join(binpath, exe)
                if os.path.exists(path):
                    binpath = path
                    break
            else:
                binpath = ''
        rcParams[cls.exec_key] = rcParamsDefault[cls.exec_key] = binpath
Example #3
Source File: animation.py    From coffeegrindsize with MIT License 6 votes vote down vote up 
def _init_from_registry(cls):
        if sys.platform != 'win32' or rcParams[cls.exec_key] != 'convert':
            return
        import winreg
        for flag in (0, winreg.KEY_WOW64_32KEY, winreg.KEY_WOW64_64KEY):
            try:
                hkey = winreg.OpenKeyEx(winreg.HKEY_LOCAL_MACHINE,
                                        r'Software\Imagemagick\Current',
                                        0, winreg.KEY_QUERY_VALUE | flag)
                binpath = winreg.QueryValueEx(hkey, 'BinPath')[0]
                winreg.CloseKey(hkey)
                break
            except Exception:
                binpath = ''
        if binpath:
            for exe in ('convert.exe', 'magick.exe'):
                path = os.path.join(binpath, exe)
                if os.path.exists(path):
                    binpath = path
                    break
            else:
                binpath = ''
        rcParams[cls.exec_key] = rcParamsDefault[cls.exec_key] = binpath
Example #4
Source File: util.py    From pympress with GNU General Public License v2.0 4 votes vote down vote up 
def set_screensaver(must_disable, window):
    """ Enable or disable the screensaver.

    Args:
        must_disable (`bool`):  if `True`, indicates that the screensaver must be disabled; otherwise it will be enabled
        window (:class:`~Gdk.Window`): The window on the screen where the screensaver is to be suspended.
    """
    if IS_MAC_OS:
        # On Mac OS X we can use caffeinate to prevent the display from sleeping
        if must_disable:
            if set_screensaver.dpms_was_enabled is None or set_screensaver.dpms_was_enabled.poll():
                set_screensaver.dpms_was_enabled = subprocess.Popen(['caffeinate', '-d', '-w', str(os.getpid())])
        else:
            if set_screensaver.dpms_was_enabled and not set_screensaver.dpms_was_enabled.poll():
                set_screensaver.dpms_was_enabled.kill()
                set_screensaver.dpms_was_enabled.poll()
                set_screensaver.dpms_was_enabled = None

    elif IS_POSIX:
        # Import here because util should be imported without depending on gi
        from gi.repository import Gio

        # On Linux and Wayland we can use a dbus interface to tell the screensaver
        # to not lock the screen, should work on all freedesktop compliant desktops
        # eg. Gnome, KDE,...
        bus = Gio.bus_get_sync(Gio.BusType.SESSION, None)
        iface = Gio.DBusProxy.new_sync(bus, Gio.DBusProxyFlags.NONE, None,
                                       'org.freedesktop.ScreenSaver',
                                       '/org/freedesktop/ScreenSaver',
                                       'org.freedesktop.ScreenSaver', None)

        if must_disable and not set_screensaver.dpms_was_enabled:
            set_screensaver.dbus_cookie = iface.Inhibit("(ss)", "pympress", _("Fullscreen Presentation running"))
            set_screensaver.dpms_was_enabled = True
        if not must_disable and set_screensaver.dpms_was_enabled:
            iface.UnInhibit("(u)", set_screensaver.dbus_cookie)
            set_screensaver.dbus_cookie = None
            set_screensaver.dpms_was_enabled = False

    elif IS_WINDOWS:
        try:
            with winreg.OpenKey(winreg.HKEY_CURRENT_USER, r'Control Panel\Desktop', 0,
                                winreg.KEY_QUERY_VALUE | winreg.KEY_SET_VALUE) as key:
                if must_disable:
                    value, regtype = winreg.QueryValueEx(key, "ScreenSaveActive")
                    assert(regtype == winreg.REG_SZ)
                    set_screensaver.dpms_was_enabled = (value == "1")
                    if set_screensaver.dpms_was_enabled:
                        winreg.SetValueEx(key, "ScreenSaveActive", 0, winreg.REG_SZ, "0")
                elif set_screensaver.dpms_was_enabled:
                    winreg.SetValueEx(key, "ScreenSaveActive", 0, winreg.REG_SZ, "1")
        except (OSError, PermissionError):
            logger.exception(_("access denied when trying to access screen saver settings in registry!"))

    else:
        logger.warning(_("Unsupported OS: can't enable/disable screensaver"))


#: remember DPMS setting before we change it