how do I close window with handle using win32gui in Python

Question

I have obtained the handle of a window I want to target, with win32gui library in Python

How do I close the window?

I have the following code, the second line did what I intended to do

but the last line seems to be wrong.

handle = win32gui.FindWindow(None, r'Notepad++')
win32gui.SetForegroundWindow(handle)
win32gui.CloseWindow(handle)

I also want to know if I just want to close the window, is the second line necessary?

Besides that, I notice a minor thing, and I am curious about it:

If I try

win32gui.CloseWindow(handle)

in Python shell, I get something like:

2500276L

but if I try

handle = win32gui.CloseWindow(handle)
print handle

then I get

2500276

does the 'L' in the end make any difference?

Thanks for your attention!!

Solution

Try:

import win32con    
win32gui.PostMessage(handle,win32con.WM_CLOSE,0,0)

This should work.