无法正确使用wx.NotificationMessage和wxPython

我最近升级到wxPython（wxPython 2.9.2.4）的开发版本，因为我需要在我的应用程序中使用wx.NotificationMessage的功能。由于我认为可能是一个可能的错误，我一直试图在某些用户事件上创建通知泡泡失败。在提交此类错误之前，我想继续向邮件列表中的人员询问他们认为可能是问题的原因，并希望从我的代码中找到解决方案。无法正确使用wx.NotificationMessage和wxPython

这里是我使用的代码：“Hello World”的

import wx, sys 

app = wx.PySimpleApp() 

class TestTaskBarIcon(wx.TaskBarIcon): 

    def __init__(self): 
     wx.TaskBarIcon.__init__(self) 
     # create a test icon 
     bmp = wx.EmptyBitmap(16, 16) 
     dc = wx.MemoryDC(bmp) 
     dc.SetBrush(wx.RED_BRUSH) 
     dc.Clear() 
     dc.SelectObject(wx.NullBitmap) 

     testicon = wx.EmptyIcon() 
     testicon.CopyFromBitmap(bmp) 

     self.SetIcon(testicon) 
     self.Bind(wx.EVT_TASKBAR_LEFT_UP, lambda e: (self.RemoveIcon(),sys.exit())) 

     wx.NotificationMessage("", "Hello world!").Show() 

icon = TestTaskBarIcon() 
app.MainLoop()

在我的Windows 7电脑，代码创建了一个白色的小任务栏图标，并创建短语的弹出。问题？该消息不在我的图标上。另一个图标正在创建，并且该消息正被放置在那里。看到这个图片： http://www.pasteall.org/pic/18068" >

我的想法是，这可能是由于这样的事实，我已经通过了无父参数在第22行：

wx.NotificationMessage("", "Hello world!").Show()

这里是我把它改为：

wx.NotificationMessage("", "Hello world!", self).Show()

在哪里“自我”是指到任务栏图标当我这样做，我得到一个错误：

Traceback (most recent call last): 
    File "C:\Python27\testnotificationmessage.py", line 24, in <module> 
    icon = TestTaskBarIcon() 
    File "C:\Python27\testnotificationmessage.py", line 22, in __init__ 
    wx.NotificationMessage("", "Hello world!", self).Show() 
    File "C:\Python27\lib\site-packages\wx-2.9.2-msw\wx\_misc.py", line 1213, in __init__ 
    _misc_.NotificationMessage_swiginit(self,_misc_.new_NotificationMessage(*args)) 
TypeError: in method 'new_NotificationMessage', expected argument 3 of type 'wxWindow *'

发生了什么事？如果我删除了这个参数，我没有得到结果，如果我添加了参数，我得到一个错误！我该如何使用wx.NotificationMessage和wx.TaskBarIcon！

请帮忙！我希望我已经提供了足够的细节。请评论，如果你需要更多！

来源

2011-09-23 Sunjay Varma

您是否找到2.9.2.4的文档？我要么失明，要么运气不好...... – Fenikso

我不会推荐使用2.9。试用时遇到一些奇怪的错误。

您可以在2.8中具有相同的功能。我使用了一些我之前发现的修改过的代码。

import wx, sys 

try: 
    import win32gui #, win32con 
    WIN32 = True 
except: 
    WIN32 = False 

class BalloonTaskBarIcon(wx.TaskBarIcon): 
    """ 
    Base Taskbar Icon Class 
    """ 
    def __init__(self): 
     wx.TaskBarIcon.__init__(self) 
     self.icon = None 
     self.tooltip = "" 

    def ShowBalloon(self, title, text, msec = 0, flags = 0): 
     """ 
     Show Balloon tooltip 
     @param title - Title for balloon tooltip 
     @param msg - Balloon tooltip text 
     @param msec - Timeout for balloon tooltip, in milliseconds 
     @param flags - one of wx.ICON_INFORMATION, wx.ICON_WARNING, wx.ICON_ERROR 
     """ 
     if WIN32 and self.IsIconInstalled(): 
      try: 
       self.__SetBalloonTip(self.icon.GetHandle(), title, text, msec, flags) 
      except Exception: 
       pass # print(e) Silent error 

    def __SetBalloonTip(self, hicon, title, msg, msec, flags): 

     # translate flags 
     infoFlags = 0 

     if flags & wx.ICON_INFORMATION: 
      infoFlags |= win32gui.NIIF_INFO 
     elif flags & wx.ICON_WARNING: 
      infoFlags |= win32gui.NIIF_WARNING 
     elif flags & wx.ICON_ERROR: 
      infoFlags |= win32gui.NIIF_ERROR 

     # Show balloon 
     lpdata = (self.__GetIconHandle(), # hWnd 
        99,      # ID 
        win32gui.NIF_MESSAGE|win32gui.NIF_INFO|win32gui.NIF_ICON, # flags: Combination of NIF_* flags 
        0,      # CallbackMessage: Message id to be pass to hWnd when processing messages 
        hicon,     # hIcon: Handle to the icon to be displayed 
        '',      # Tip: Tooltip text 
        msg,      # Info: Balloon tooltip text 
        msec,      # Timeout: Timeout for balloon tooltip, in milliseconds 
        title,     # InfoTitle: Title for balloon tooltip 
        infoFlags     # InfoFlags: Combination of NIIF_* flags 
       ) 
     win32gui.Shell_NotifyIcon(win32gui.NIM_MODIFY, lpdata) 

     self.SetIcon(self.icon, self.tooltip) # Hack: because we have no access to the real CallbackMessage value 

    def __GetIconHandle(self): 
     """ 
     Find the icon window. 
     This is ugly but for now there is no way to find this window directly from wx 
     """ 
     if not hasattr(self, "_chwnd"): 
      try: 
       for handle in wx.GetTopLevelWindows(): 
        if handle.GetWindowStyle(): 
         continue 
        handle = handle.GetHandle() 
        if len(win32gui.GetWindowText(handle)) == 0: 
         self._chwnd = handle 
         break 
       if not hasattr(self, "_chwnd"): 
        raise Exception 
      except: 
       raise Exception, "Icon window not found" 
     return self._chwnd 

    def SetIcon(self, icon, tooltip = ""): 
     self.icon = icon 
     self.tooltip = tooltip 
     wx.TaskBarIcon.SetIcon(self, icon, tooltip) 

    def RemoveIcon(self): 
     self.icon = None 
     self.tooltip = "" 
     wx.TaskBarIcon.RemoveIcon(self) 

# =================================================================== 
app = wx.PySimpleApp() 

class TestTaskBarIcon(BalloonTaskBarIcon): 

    def __init__(self): 
     wx.TaskBarIcon.__init__(self) 
     # create a test icon 
     bmp = wx.EmptyBitmap(16, 16) 
     dc = wx.MemoryDC(bmp) 
     dc.SetBrush(wx.RED_BRUSH) 
     dc.Clear() 
     dc.SelectObject(wx.NullBitmap) 

     testicon = wx.EmptyIcon() 
     testicon.CopyFromBitmap(bmp) 

     self.SetIcon(testicon) 
     self.Bind(wx.EVT_TASKBAR_LEFT_UP, lambda e: (self.RemoveIcon(),sys.exit())) 

     self.ShowBalloon("", "Hello world!") 

icon = TestTaskBarIcon() 
app.MainLoop()

来源

2011-09-23 09:08:38 Fenikso

有一个在TaskBarIcon无证隐藏的方法叫ShowBalloon了仅针对Windows系统上实现。

从the source：

def ShowBalloon(*args, **kwargs): 
    """ 
    ShowBalloon(self, String title, String text, unsigned int msec=0, int flags=0) -> bool 

    Show a balloon notification (the icon must have been already 
    initialized using SetIcon). Only implemented for Windows. 

    title and text are limited to 63 and 255 characters respectively, msec 
    is the timeout, in milliseconds, before the balloon disappears (will 
    be clamped down to the allowed 10-30s range by Windows if it's outside 
    it) and flags can include wxICON_ERROR/INFO/WARNING to show a 
    corresponding icon 

    Returns True if balloon was shown, False on error (incorrect parameters 
    or function unsupported by OS) 

    """ 
    return _windows_.TaskBarIcon_ShowBalloon(*args, **kwargs)

我的wxPython 2.9.4.0测试它在Windows和它工作得很好。

来源

2012-08-27 16:00:28 Clippit

无法正确使用wx.NotificationMessage和wxPython

回答

相关问题