# ======================================================
#    Program 1     Open File Dialog (OFD)  works nicely            Program 1
# ======================================================
import wx
class MyForm(wx.Frame):
 app = wx.App()
 frame = wx.Frame(None, -1, 'win.py')
 # frame.SetDimensions(0,0,200,50)
 frame.SetSize(0,0,200,50)
 wx.MessageBox('Ready to show the dialog', 'Open File Dialog',
            wx.OK | wx.ICON_INFORMATION)
 openFileDialog = wx.FileDialog(frame, "Open", "", "",
                                      "Text files (*.txt)|*.txt",
                                       wx.FD_OPEN | wx.FD_FILE_MUST_EXIST)
 openFileDialog.ShowModal()
 print("-------------------------------")
 print(openFileDialog.GetPath())
 print("-------------------------------")
 openFileDialog.Destroy()
 wx.MessageBox('The dialog was shown ', 'Open File Dialog',
            wx.OK | wx.ICON_INFORMATION)



# ======================================================
#   Program 2   never shows the OFD and exits with an error message.  Program 2 
# ======================================================

import wx
import os

########################################################################
class MyForm(wx.Frame):
    #----------------------------------------------------------------------


    def __init__(self):

        wx.Frame.__init__(self, None, title="Display a Bitmap Image")
        self.panel = wx.Panel(self, wx.ID_ANY)
        frame = wx.Frame(None, -1, 'win.py')
        frame.SetSize(0,0,200,50)
        menuBar = wx.MenuBar()      # Add a MenuBar
        fileMenu = wx.Menu()
        openFileMenuItem = fileMenu.Append(wx.NewId(), "Open a bmp file")
        # -------             create a submenu
        subMenu = wx.Menu()
        historyMenuItem = subMenu.Append(wx.NewId(), "Show History")
        fileMenu.Append(wx.NewId(), "History", subMenu)
       #  fileMenu.AppendMenu(wx.NewId(), "History", subMenu)
        exitMenuItem = fileMenu.Append(wx.NewId(), "Exit",
                                       "Exit the application")
       # --------------------------------------------------------
        menuBar.Append(fileMenu, "&File")

        self.Bind(wx.EVT_MENU, self.onExit, exitMenuItem)
        self.Bind(wx.EVT_MENU, self.onOpenFile,openFileMenuItem )
        self.SetMenuBar(menuBar)

    #----------------------------------------------------------------------
    def onExit(self, event):

        self.Close()
        # frame.Destroy()

    def onOpenFile(self, evt=None):

        wx.MessageBox('Ready to show the dialog', 'Open File Dialog',
            wx.OK | wx.ICON_INFORMATION)

        openFileDialog = wx.FileDialog(frame, "Open", "", "",
                                      "Text files (*.txt)|*.txt",
                                       wx.FD_OPEN | wx.FD_FILE_MUST_EXIST)

        wx.MessageBox('The dialog was shown ', 'Open File Dialog',
            wx.OK | wx.ICON_INFORMATION)

        openFileDialog.ShowModal()
        print("-------------------------------")
        print(openFileDialog.GetPath())
        print("-------------------------------")
        openFileDialog.Destroy()

 #  ===================================================

# Run the program
if __name__ == "__main__":
    #                app = wx.App(False)  # Original code
    app = wx.App(True)
    # app = wx.App(True)
    frame = MyForm().Show()
    app.MainLoop()














#     ------------------------------------------------------  Error Follows--------
Traceback (most recent call last):
  File "D:\Software Development\Python Assets\PythonApplications\Show Bitmap\ShowMyBitMap.py", line 65, in onOpenFile
    wx.FD_OPEN | wx.FD_FILE_MUST_EXIST)
TypeError: FileDialog(): argument 1 has unexpected type 'bool'
#    -----------------------------------------------------------------------------------
# Also
#    The code also generates  a
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