Python win32gui.PostMessage() Examples

def ctrl_click(x :int, y :int) -> None:
        """Clicks at pixel x, y while simulating the CTRL button to be down."""
        x += Window.x
        y += Window.y
        lParam = win32api.MAKELONG(x, y)
        while (win32api.GetKeyState(wcon.VK_CONTROL) < 0 or
               win32api.GetKeyState(wcon.VK_SHIFT) < 0 or
               win32api.GetKeyState(wcon.VK_MENU) < 0):
            time.sleep(0.005)

        win32gui.PostMessage(Window.id, wcon.WM_KEYDOWN, wcon.VK_CONTROL, 0)
        win32gui.PostMessage(Window.id, wcon.WM_LBUTTONDOWN,
                             wcon.MK_LBUTTON, lParam)
        win32gui.PostMessage(Window.id, wcon.WM_LBUTTONUP,
                             wcon.MK_LBUTTON, lParam)
        win32gui.PostMessage(Window.id, wcon.WM_KEYUP, wcon.VK_CONTROL, 0)
        time.sleep(userset.MEDIUM_SLEEP) 

def OnCommand(self, hwnd, msg, wparam, lparam):
        id = win32api.LOWORD(wparam)
        if id == IDC_BUTTON_SEARCH:
            self.ClearListItems()
            def fill_slowly(q, hwnd):
                import time
                for i in range(20):
                    q.put(("whatever", str(i+1), "Search result " + str(i) ))
                    win32gui.PostMessage(hwnd, WM_SEARCH_RESULT, 0, 0)
                    time.sleep(.25)
                win32gui.PostMessage(hwnd, WM_SEARCH_FINISHED, 0, 0)

            import threading
            self.result_queue = Queue.Queue()
            thread = threading.Thread(target = fill_slowly, args=(self.result_queue, self.hwnd) )
            thread.start()
        elif id == IDC_BUTTON_DISPLAY:
            print "Display button selected"
            sel = win32gui.SendMessage(self.hwndList, commctrl.LVM_GETNEXTITEM, -1, commctrl.LVNI_SELECTED)
            print "The selected item is", sel+1

    # These function differ based on how the window is used, so may be overridden 

def OnTaskbarNotify(self, hwnd, msg, wparam, lparam):
        if lparam==win32con.WM_LBUTTONUP:
            print "You clicked me."
        elif lparam==win32con.WM_LBUTTONDBLCLK:
            print "You double-clicked me - goodbye"
            win32gui.DestroyWindow(self.hwnd)
        elif lparam==win32con.WM_RBUTTONUP:
            print "You right clicked me."
            menu = win32gui.CreatePopupMenu()
            win32gui.AppendMenu( menu, win32con.MF_STRING, 1023, "Display Dialog")
            win32gui.AppendMenu( menu, win32con.MF_STRING, 1024, "Say Hello")
            win32gui.AppendMenu( menu, win32con.MF_STRING, 1025, "Exit program" )
            pos = win32gui.GetCursorPos()
            # See http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/menus_0hdi.asp
            win32gui.SetForegroundWindow(self.hwnd)
            win32gui.TrackPopupMenu(menu, win32con.TPM_LEFTALIGN, pos[0], pos[1], 0, self.hwnd, None)
            win32gui.PostMessage(self.hwnd, win32con.WM_NULL, 0, 0)
        return 1 

def click_drag(x :int, y :int, x2 :int, y2 :int) -> None:
        """Click at pixel xy."""
        x += Window.x
        y += Window.y
        x2 += Window.x
        y2 += Window.y
        lParam = win32api.MAKELONG(x, y)
        lParam2 = win32api.MAKELONG(x2, y2)
        # MOUSEMOVE event is required for game to register clicks correctly
        win32gui.PostMessage(Window.id, wcon.WM_MOUSEMOVE, 0, lParam)
        while (win32api.GetKeyState(wcon.VK_CONTROL) < 0 or
               win32api.GetKeyState(wcon.VK_SHIFT) < 0 or
               win32api.GetKeyState(wcon.VK_MENU) < 0):
            time.sleep(0.005)
        win32gui.PostMessage(Window.id, wcon.WM_LBUTTONDOWN,
                             wcon.MK_LBUTTON, lParam)
        time.sleep(userset.LONG_SLEEP * 2)
        win32gui.PostMessage(Window.id, wcon.WM_MOUSEMOVE, 0, lParam2)
        time.sleep(userset.SHORT_SLEEP)
        win32gui.PostMessage(Window.id, wcon.WM_LBUTTONUP,
                             wcon.MK_LBUTTON, lParam2)
        time.sleep(userset.MEDIUM_SLEEP) 

def show_menu(self):
        menu = win32gui.CreatePopupMenu()
        self.create_menu(menu, self.menu_options)
        # win32gui.SetMenuDefaultItem(menu, 1000, 0)

        pos = win32gui.GetCursorPos()
        # See http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/menus_0hdi.asp
        win32gui.SetForegroundWindow(self.hwnd)
        win32gui.TrackPopupMenu(menu,
                                win32con.TPM_LEFTALIGN,
                                pos[0],
                                pos[1],
                                0,
                                self.hwnd,
                                None)
        win32gui.PostMessage(self.hwnd, win32con.WM_NULL, 0, 0) 

def enumCallback(hwnd, self):
            title = win32gui.GetWindowText(hwnd)

            for name in self.WindowNames:
                if title.find(name) > -1:
                    try:
                        self.FoundWindowEvent.set()

                        if self.CloseWindows:
                            win32gui.PostMessage(hwnd, win32con.WM_CLOSE, 0, 0)
                    except:
                        pass
                else:
                    try:
                        win32gui.EnumChildWindows(hwnd, _WindowWatcher.enumChildCallback, self)
                    except:
                        pass

            return True 

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 show_menu(self):
        """Draw the popup menu."""
        menu = win32gui.CreatePopupMenu()
        self._create_menu(menu, self.menu_options)
        
        pos = win32gui.GetCursorPos()
        # See http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/menus_0hdi.asp
        win32gui.SetForegroundWindow(self.hwnd)
        win32gui.TrackPopupMenu(menu,
                                win32con.TPM_LEFTALIGN,
                                pos[0],
                                pos[1],
                                0,
                                self.hwnd,
                                None)
        win32gui.PostMessage(self.hwnd, win32con.WM_NULL, 0, 0)
        self.logger.debug('Menu displayed.') 

def enumChildCallback(hwnd, windowName):
            """
            Will get called by win32gui.EnumWindows, once for each
            top level application window.
            """

            try:

                # Get window title
                title = win32gui.GetWindowText(hwnd)

                # Is this our guy?
                if title.find(windowName) == -1:
                    return

                # Send WM_CLOSE message
                win32gui.PostMessage(hwnd, win32con.WM_CLOSE, 0, 0)

            except:
                pass
            #print sys.exc_info() 

def foreach_window(self):
        def callback(hwnd, lparam):
            title = win32gui.GetWindowText(hwnd).lower()

            for window in self.to_close:
                if window in title:
                    win32gui.PostMessage(hwnd, win32con.WM_CLOSE, 0, 0)
                    print "Closed window ({})".format(title)

            for window in self.clicks:
                if window in title:
                    self._windows[hwnd] = {
                        "matches": self.clicks[window],
                        "to_click": [],
                        "buttons": []
                    }
                    try:
                        win32gui.EnumChildWindows(hwnd, self.foreach_child(), hwnd)
                    except:
                        print "EnumChildWindows failed, moving on."

                    for button_toclick in self._windows[hwnd]['to_click']:
                        for button in self._windows[hwnd]['buttons']:
                            if button_toclick in button['text']:
                                win32gui.SetForegroundWindow(button['handle'])
                                win32gui.SendMessage(button['handle'], win32con.BM_CLICK, 0, 0)
                                print "Clicked on button ({} / {})".format(title, button['text'])

                    del self._windows[hwnd]

            return True

        return callback 

def enumChildCallback(hwnd, windowName):
            """
            Will get called by win32gui.EnumWindows, once for each
            top level application window.
            """

            try:

                # Get window title
                title = win32gui.GetWindowText(hwnd)

                # Is this our guy?
                if title.find(windowName) == -1:
                    return

                # Send WM_CLOSE message
                win32gui.PostMessage(hwnd, win32con.WM_CLOSE, 0, 0)

            except:
                pass
            #print sys.exc_info() 

def enumChildCallback(hwnd, args):
            """
            Will get called by win32gui.EnumWindows, once for each
            top level application window.
            """

            proc = args[0]
            windowName = args[1]

            try:

                # Get window title
                title = win32gui.GetWindowText(hwnd)

                # Is this our guy?
                if title.find(windowName) == -1:
                    return

                # Send WM_CLOSE message
                win32gui.PostMessage(hwnd, win32con.WM_CLOSE, 0, 0)

            except:
                pass
            #print sys.exc_info() 

def enumCallback(hwnd, args):
            """
            Will get called by win32gui.EnumWindows, once for each
            top level application window.
            """

            proc = args[0]
            windowName = args[1]

            try:
                # Get window title
                title = win32gui.GetWindowText(hwnd)

                # Is this our guy?
                if title.find(windowName) == -1:
                    win32gui.EnumChildWindows(hwnd, FileWriterLauncherGui.enumChildCallback, args)
                    return

                # Send WM_CLOSE message
                win32gui.PostMessage(hwnd, win32con.WM_CLOSE, 0, 0)
            except:
                pass 

def show_menu(self):
        menu = win32gui.CreatePopupMenu()
        self.create_menu(menu, self.menu_options)
        # win32gui.SetMenuDefaultItem(menu, 1000, 0)

        pos = win32gui.GetCursorPos()
        # See http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/menus_0hdi.asp
        win32gui.SetForegroundWindow(self.hwnd)
        win32gui.TrackPopupMenu(menu,
                                win32con.TPM_LEFTALIGN,
                                pos[0],
                                pos[1],
                                0,
                                self.hwnd,
                                None)
        win32gui.PostMessage(self.hwnd, win32con.WM_NULL, 0, 0) 

def show_menu(self):
        menu = win32gui.CreatePopupMenu()
        self.create_menu(menu, self.menu_options)
        #win32gui.SetMenuDefaultItem(menu, 1000, 0)
        
        pos = win32gui.GetCursorPos()
        # See http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/menus_0hdi.asp
        win32gui.SetForegroundWindow(self.hwnd)
        win32gui.TrackPopupMenu(menu,
                                win32con.TPM_LEFTALIGN,
                                pos[0],
                                pos[1],
                                0,
                                self.hwnd,
                                None)
        win32gui.PostMessage(self.hwnd, win32con.WM_NULL, 0, 0) 

def _show_menu( self ):
        menu = win32gui.CreatePopupMenu()
        for action in self.menu_actions:
            if action:
                flags = win32con.MF_STRING
                if not action.sensitive:
                    flags |= win32con.MF_GRAYED
                win32gui.AppendMenu( menu, flags, action.get_id(), action.label )
            else:
                win32gui.AppendMenu( menu, win32con.MF_SEPARATOR, 0, '' )
        
        pos = win32gui.GetCursorPos()
        
        win32gui.SetForegroundWindow( self.window_handle )
        win32gui.TrackPopupMenu( menu,
                                 win32con.TPM_LEFTALIGN | win32con.TPM_BOTTOMALIGN,
                                 pos[ 0 ],
                                 pos[ 1 ],
                                 0,
                                 self.window_handle,
                                 None )
        win32gui.PostMessage( self.window_handle, win32con.WM_NULL, 0, 0 ) 

def click(hwnd):
    '''
    模拟鼠标左键单击
    :param hwnd: 要单击的控件、窗体句柄
    :return:
    '''
    win32gui.PostMessage(hwnd, win32con.WM_LBUTTONDOWN, None, None)
    time.sleep(.2)
    win32gui.PostMessage(hwnd, win32con.WM_LBUTTONUP, None, None) 

def SelectColumn(self, col):
        """Color the selected column (MSW only)"""
        if self.selected_column == col:
            return
        col_num = self.enabled_columns.index(col)
        if os.name == 'nt':
            win32gui.PostMessage(self.GetHandle(),
                                 LVM_SETSELECTEDCOLUMN, col_num, 0)

            if self.selected_column is not None:
                self.RefreshCol(self.selected_column)
            self.RefreshCol(col)
            self.selected_column = col 

def sendKey(hwnd, key_code):
    '''
    模拟按键
    :param hwnd: 窗体句柄
    :param key_code: 按键码，在win32con下，比如win32con.VK_F1
    :return:
    '''
    win32gui.PostMessage(hwnd, win32con.WM_KEYDOWN, key_code, 0)  # 消息键盘
    time.sleep(.2)
    win32gui.PostMessage(hwnd, win32con.WM_KEYUP, key_code, 0) 

def click(hwnd):
    """
    模拟鼠标左键单击
    :param hwnd: 要单击的控件、窗体句柄
    :return:
    """
    win32gui.PostMessage(hwnd, win32con.WM_LBUTTONDOWN, None, None)
    time.sleep(0.2)
    win32gui.PostMessage(hwnd, win32con.WM_LBUTTONUP, None, None)
    time.sleep(0.2) 

def sendKeyMsg(hwnd, key_code):
    """
    模拟按键
    :param hwnd: 窗体句柄
    :param key_code: 按键码，在win32con下，比如win32con.VK_F1
    :return:
    """
    win32gui.PostMessage(hwnd, win32con.WM_KEYDOWN, key_code, 0)  # 消息键盘
    time.sleep(0.2)
    win32gui.PostMessage(hwnd, win32con.WM_KEYUP, key_code, 0)
    time.sleep(0.2) 

def WinXPUnlockWorkstation():
	hDesktop, hSasWindow = FindSasWindow()
	win32gui.PostMessage(hSasWindow, WM_LOGONNOTIFY, LN_UNLOCK_WORKSTATION, 0) 

def signal_handler(self):
        """
        Function called when oxc gets a signal
        """
        print "Exiting..."
        for sh in self.xc_servers:
            self.xc_servers[sh].halt = True
            self.xc_servers[sh].halt_search = True
            self.xc_servers[sh].halt_performance = True
            self.xc_servers[sh].logout()
        self.config.write()
        if self.hWnd != 0:
            win32gui.PostMessage(self.hWnd, win32con.WM_QUIT, 0, 0)
            self.hWnd = 0 

def on_window_destroy(self, widget, data=None):
        """
        Function called when you close the window or press Quit
        """
        # For each server
        if self.tunnel:
            for key in self.tunnel.keys():
                self.tunnel[key].close()

        for sh in self.xc_servers:
            # Stop the threads setting True the condition variables
            self.xc_servers[sh].halt = True
            self.xc_servers[sh].halt_search = True
            self.xc_servers[sh].halt_import = True
            self.xc_servers[sh].halt_performance = True
            # Do a logout, remember logout disconnect to server and unregister events
            self.xc_servers[sh].logout()
        # For windows only: close the tightvnc console
        if self.hWnd != 0:
            win32gui.PostMessage(self.hWnd, win32con.WM_QUIT, 0, 0)
            self.hWnd = 0
        # Get the position of the main window pane
        self.save_pane_position()
        # Save unsaved changes
        self.config.write()
        # Exit!
        gtk.main_quit()
        if self.vnc_process:
            for process in self.vnc_process.keys():
                #Kill all running sub_processes
                if self.vnc_process[process].poll() != 0:
                    os.killpg(os.getpgid(self.vnc_process[process].pid), signal.SIGTERM)
        #Force Quit
        os._exit(0)
        return 

def click(x :int, y :int, button :str ="left", fast :bool =False) -> None:
        """Click at pixel xy."""
        x += Window.x
        y += Window.y
        lParam = win32api.MAKELONG(x, y)
        # MOUSEMOVE event is required for game to register clicks correctly
        win32gui.PostMessage(Window.id, wcon.WM_MOUSEMOVE, 0, lParam)
        while (win32api.GetKeyState(wcon.VK_CONTROL) < 0 or
               win32api.GetKeyState(wcon.VK_SHIFT) < 0 or
               win32api.GetKeyState(wcon.VK_MENU) < 0):
            time.sleep(0.005)
        if button == "left":
            win32gui.PostMessage(Window.id, wcon.WM_LBUTTONDOWN,
                                 wcon.MK_LBUTTON, lParam)
            win32gui.PostMessage(Window.id, wcon.WM_LBUTTONUP,
                                 wcon.MK_LBUTTON, lParam)
        else:
            win32gui.PostMessage(Window.id, wcon.WM_RBUTTONDOWN,
                                 wcon.MK_RBUTTON, lParam)
            win32gui.PostMessage(Window.id, wcon.WM_RBUTTONUP,
                                 wcon.MK_RBUTTON, lParam)
        # Sleep lower than 0.1 might cause issues when clicking in succession
        if fast:
            time.sleep(userset.FAST_SLEEP)
        else:
            time.sleep(userset.MEDIUM_SLEEP) 

def _signal_queue( self ):
        '''
        signal that there are actions to process in the queue
        '''
        win32gui.PostMessage( self.systray_window.window_handle, self.WM_USER_QUEUE, 0, 0 ) 

def close(self):
        self.logger.info('close')
        win32gui.PostMessage(self.hwnd, win32con.WM_CLOSE, 0, 0)
        return 

def pressKey(hwnd, key_code):
    '''
    模拟按键
    :param hwnd: 窗体句柄
    :param key_code: 按键码，在win32con下，比如win32con.VK_F1
    :return:
    '''
    win32gui.PostMessage(hwnd, win32con.WM_KEYDOWN, key_code, 0)  # 消息键盘
    time.sleep(.2)
    win32gui.PostMessage(hwnd, win32con.WM_KEYUP, key_code, 0)
    time.sleep(.2) 

def click(hwnd):
    '''
    模拟鼠标左键单击
    :param hwnd: 要单击的控件、窗体句柄
    :return:
    '''
    win32gui.PostMessage(hwnd, win32con.WM_LBUTTONDOWN, None, None)
    time.sleep(.2)
    win32gui.PostMessage(hwnd, win32con.WM_LBUTTONUP, None, None)
    time.sleep(.2) 

def enumCallback(hwnd, windowName):
            """
            Will get called by win32gui.EnumWindows, once for each
            top level application window.
            """

            try:
                # Get window title
                title = win32gui.GetWindowText(hwnd)

                # Is this our guy?
                if title.find(windowName) == -1:
                    win32gui.EnumChildWindows(hwnd, FileWriterLauncherGui.enumChildCallback, windowName)
                    return

                # Send WM_CLOSE message
                win32gui.PostMessage(hwnd, win32con.WM_CLOSE, 0, 0)
            except:
                pass