Program to move mouse cursor doesn't work as expected

Question

I'm creating a program that utilizes the win32api mouse_event to move the mouse cursor to a certain position. However, the program is not working as expected. Any help would be most appreciated.

NOTE: I must use win32api and no other library.

Take this program for example:

import win32api

x = 1000
y = 1000
win32api.mouse_event(0x0001, int(x), int(y))

It should move the mouse cursor to the 1000th x and y pixels on the screen but it doesn't.

How about using [SendInput](https://learn.microsoft.com/en-us/windows/desktop/api/winuser/nf-winuser-sendinput) instead? — Michael Chourdakis, May 17 '19 at 20:55
Read the documentation: [mouse_event](https://learn.microsoft.com/en-us/windows/desktop/api/winuser/nf-winuser-mouse_event). — IInspectable, May 17 '19 at 21:00
@mic: That doesn't change anything. It's just more setup to accomplish the same thing, with no benefit. The parameters and semantics are virtually identical. — IInspectable, May 17 '19 at 21:20
I have read the documentation, I'm just curious as to why it doesn't work. — Zeyad Mansour, May 17 '19 at 21:35
The documentation tells you all you need to know. You read it slowly, and in detail. — David Heffernan, May 17 '19 at 21:47
I have read it and it is a little confusing tbh. Do you have any ideas as to why the simple code excerpt above doesn't work? — Zeyad Mansour, May 17 '19 at 23:08
Read what the documentation says about relative and absolute coordinates — David Heffernan, May 18 '19 at 08:42
Yes, I have I understand that the code above does not work because it is moving the mouse relative to its current position. That is why I want to use absolute position, however, I could not find any examples of the syntax to do this. — Zeyad Mansour, May 18 '19 at 15:05
[Here](https://stackoverflow.com/questions/1181464/controlling-mouse-with-python#comment14114219_1181538) is an example. — IInspectable, May 18 '19 at 18:57

score 0 · Answer 1 · answered May 20 '19 at 03:39

If you want to use SendInput, you need to use the ctypes library, and if you use the old mouse_event, you can use the following example.

import win32api 
import win32con
def click(x,y):
    cx_screen = win32api.GetSystemMetrics(win32con.SM_CXSCREEN)
    cy_screen = win32api.GetSystemMetrics(win32con.SM_CYSCREEN) 
    win32api.mouse_event(win32con.MOUSEEVENTF_MOVE | win32con.MOUSEEVENTF_ABSOLUTE, int(65535.0*x/cx_screen), int(65535.0*y/cy_screen))
click(1000,100)

How to Use SendInput to realize Mouse Click?

Program to move mouse cursor doesn't work as expected

1 Answers1