我有一个按钮,可以创建一个新的子框架或显示已创建的框架。当我试图单独使用Show()时遇到了问题 - 如果用户已退出子框架,则会因为访问不再存在的框架而出现错误。我目前正在使用try /除了解决这个问题,但有没有更好的方法?也许一个类似Raise()的函数来处理这个问题,或者一种检查框架是否存在的方法?显示已删除的子框架(wxPython)
代码:
#!/usr/bin/env python
import wx
class LogWindow(wx.Frame):
def __init__(self, parent):
wx.Frame.__init__(self, parent)
self.logger = wx.TextCtrl(self, style=wx.TE_MULTILINE | wx.TE_READONLY)
def Print(self):
self.Raise()
self.logger.AppendText("Hello, world\n")
class MainWindow(wx.Frame):
def __init__(self, parent, id, title):
wx.Frame.__init__(self, parent, id, title)
panel=wx.Panel(self)
label = wx.StaticText(panel, -1, "Log this message:", pos=(10,10))
goButton = wx.Button(panel, label="Log", pos=(10,50))
self.Bind(wx.EVT_BUTTON, self.OnClick, goButton)
self.logWin = LogWindow(self)
#++++++++++++++++++++++++++
def OnClick(self, event):
try:
self.logWin.Show()
except:
self.logWin = LogWindow(self)
self.logWin.Show()
self.logWin.Print()
#++++++++++++++++++++++++++
class MyApp(wx.App):
def OnInit(self):
frame = MainWindow(None, -1, "MyApp")
frame.Show(True)
self.SetTopWindow(frame)
return True
#************************************************
if __name__ == "__main__":
app = MyApp(0)
app.MainLoop()
我self.logWin.Show()
收到没有尝试错误/除非是
wx._core.PyDeadObjectError: The C++ part of the LogWindow object has been deleted, attribute access no longer allowed.
谢谢了!该线程非常丰富。 – Evelyn 2012-07-16 21:40:55