A single instance usage analysis of Python implementation program

This example describes a single instance usage of the Python implementation program. Share to everyone for your reference. Specifically as follows:

Here first use Win32ui. FindWindow the name of the window and throws an exception if it does not exist

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16-17

Import WX Import Win32ui Import Win32con try: # First Find out if the program has run win = Win32ui. FindWindow (None, ' window name ') try:if Win:win. ShowWindow (Win32con.sw_shownormal) Except:pass except: # did not find the relevant window app = WX. APP () main_frm = WX. Frame (None) main_frm. Show () app. Mainloop ()

If the ' Window name ' section is undefined, create a new window.

I hope this article will help you with your Python programming.