CODEWITHSUNDEEP
pythonwinapiwin32guiwin32con
ostry0728
ostry0728

Reputation: 121

How to change cursor image in Python

I want to change my cursor image (everywhere on screen) when my program is running.

I try to load image with win32gui and then use win32api to change cursor image, but something is wrong and my cursor doesn't show up My cursor image is map.cur

import win32api
import time
import win32gui
import win32con

x = win32gui.LoadImage(0,'map.cur',win32con.IMAGE_CURSOR,0,0,win32con.LR_LOADFROMFILE)
win32api.SetCursor(x)

time.sleep(5)

Upvotes: 2

Views: 9805

Answers (1)

Barmak Shemirani
Barmak Shemirani

Reputation: 31599

Changing the system cursor is not recommended, because the cursor has to be restored after program exits, and if the program fails then user is stuck with custom cursor and must reset the cursor from system settings.

For the sake of curiosity, it can be done with SetSystemCursor, example

ctypes.windll.user32.SetSystemCursor(hcursor, 32512) #OCR_NORMAL

See documentation for OCR_NORMAL and other cursor constants.

You can try to save the old cursor and restore it, again, this method fails if your program exits abnormally.

import win32con
import win32api
import win32gui
import ctypes
import time
import atexit

#save system cursor, before changing it
cursor = win32gui.LoadImage(0, 32512, win32con.IMAGE_CURSOR, 
                            0, 0, win32con.LR_SHARED)
save_system_cursor = ctypes.windll.user32.CopyImage(cursor, win32con.IMAGE_CURSOR, 
                            0, 0, win32con.LR_COPYFROMRESOURCE)

def restore_cursor():
    #restore the old cursor
    print("restore_cursor");
    ctypes.windll.user32.SetSystemCursor(save_system_cursor, 32512)
    ctypes.windll.user32.DestroyCursor(save_system_cursor);

#Make sure cursor is restored at the end
atexit.register(restore_cursor)

#change system cursor
cursor = win32gui.LoadImage(0, "file.cur", win32con.IMAGE_CURSOR, 
                            0, 0, win32con.LR_LOADFROMFILE);
ctypes.windll.user32.SetSystemCursor(cursor, 32512)
ctypes.windll.user32.DestroyCursor(cursor);

time.sleep(3)
exit

Upvotes: 5

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