用wx.MessageDialog创建消息对话框

运行效果图：

Python代码：

#!/usr/bin/env python
# -*- encoding:utf-8 -*-
'Create MessageDialog Example'

import wx

class MyFrame(wx.Frame):

    def __init__(self,parent,id):
        wx.Frame.__init__(self,parent,id,'MessageDialog',size=(300,200))
        panel=wx.Panel(self)

        box=wx.MessageDialog(None,'Go On?','Message',wx.OK)
        answer=box.ShowModal()
        box.Destroy()

if __name__=='__main__':
    app=wx.PySimpleApp()
    myframe=MyFrame(parent=None,id=-1)
    myframe.Show(True)
    app.MainLoop()

wx.MessageDialog函数参数如下：

wx.MessageDialog(parent,  message, caption, style = wxOK | wxCANCEL,  pos = wxDefaultPosition)

style的取值主要有以下几种：

wxOK	Show an OK button.
wxCANCEL	Show a Cancel button.
wxYES_NO	Show Yes and No buttons.
wxYES_DEFAULT	Used with wxYES_NO, makes Yes button the default - which is the default behaviour.
wxNO_DEFAULT	Used with wxYES_NO, makes No button the default.
wxICON_EXCLAMATION	Shows an exclamation mark icon.
wxICON_HAND	Shows an error icon.
wxICON_ERROR	Shows an error icon - the same as wxICON_HAND.
wxICON_QUESTION	Shows a question mark icon.
wxICON_INFORMATION	Shows an information (i) icon.
wxSTAY_ON_TOP	The message box stays on top of all other window, even those of the other applications (Windows only).

在看看相关的wx.ShowModal()函数， 它使用应用程序在对话框关闭前不能响应其它窗口的用户事件，返回一个整数，取值如下：

  wx.ID_YES, wx.ID_NO, wx.ID_CANCEL, wx.ID_OK。

例子二：

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import wx

class MyFrame(wx.Frame):
    
    def __init__(self, parent, id):
        wx.Frame.__init__(self, parent, id, u'测试面板Panel', size = (600, 300))
        
        #创建面板
        panel = wx.Panel(self) 
        
        #在Panel上添加Button
        button = wx.Button(panel, label = u'关闭', pos = (150, 60), size = (100, 60))
        
        #绑定单击事件
        self.Bind(wx.EVT_BUTTON, self.OnCloseMe, button)
        
    def OnCloseMe(self, event):
        dlg = wx.MessageDialog(None, u"消息对话框测试", u"标题信息", wx.YES_NO | wx.ICON_QUESTION)
        if dlg.ShowModal() == wx.ID_YES:
            self.Close(True)
        dlg.Destroy()
        
if __name__ == '__main__':
    app = wx.PySimpleApp()
    frame = MyFrame(parent = None, id = -1)
    frame.Show()
    app.MainLoop()

效果图：

例子三：

import wx

class MyFrame(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, title="Hello My Message", size=(300,200))
        panel=wx.Panel(self)
        b = wx.Button(panel, -1, "Show a Message", (100,50))
        self.Bind(wx.EVT_BUTTON, self.OnButton, b)
        self.Bind(wx.EVT_CLOSE, self.OnClose)
        self.Show()
    def OnButton(self, evt):
        dlg = wx.MessageDialog(self, 'Hello from Python and wxPython!',
                                'A Message Box',
                                wx.OK | wx.ICON_INFORMATION
                                #wx.YES_NO | wx.NO_DEFAULT | wx.CANCEL | wx.ICON_INFORMATION
                                )
        dlg.ShowModal()
        dlg.Destroy()
        evt.Skip()
    def OnClose(self, evt):
        dlg = wx.MessageDialog(self, 'Are you sure you want to close My Frame?',
                                'Close Frame', wx.YES_NO | wx.ICON_QUESTION)
        ret = dlg.ShowModal()
        dlg.Destroy()
        if ret == wx.ID_YES:
            evt.Skip()

app = wx.App(0)
MyFrame()
app.MainLoop()

效果图：