[FIXED] pySimpleGUI - Set Cursor and refresh

Issue

Using pySimpleGUI I simply want to change the mouse cursor while the code is processing a query, but the cursor does only change after the code is executed... it does work when I put a window.read() after the set_cursor() call, but then the proceeding code is not executed immediately. What am I doing wrong? Unfortunately, the documentation does not provide an example.

import PySimpleGUI as sg

#... more code   
window = sg.Window(f"Report Generator v{APP_VERSION}", layout)

while True:
        event, values = window.read()

        # close button was clicked
        if event == "Close" or event == sg.WIN_CLOSED:
            break
        # Generate button was clicked
        elif event == "Generate":
            window.set_cursor("coffee_mug")
            window.refresh()

            # more code where the cursor should be changed but isn't

Solution

Not completely sure why is that, but the following works as desired. The crucial part is to add the Submit button ID at the window['Submit'].set_cursor("coffee_mug"), then the new cursor is displayed before the next code is executed. And it will also show the new cursor at the entire window, not only when hovering over the button as one might have expected:

import PySimpleGUI as sg

layout = [
    [sg.Text("Hello World")],
    [sg.Button('Submit'), sg.Button('Cancel')],
]

window = sg.Window(f"Report Generator v{APP_VERSION}", layout)

while True:
        event, values = window.read()

        # close button was clicked
        if event == "Close" or event == sg.WIN_CLOSED:
            break
        # Generate button was clicked
        elif event == "Submit":
            window['Submit'].set_cursor("coffee_mug")
            time.sleep(5)

            # more code where the cursor should be changed but isn't

Answered By - Boketto