How to know if the Ctrl key has been pressed?

[icstos]

I found that only by combining keys can I know if Ctrl has been pressed (such as Ctrl+C), and is there currently a way to know if individual Ctrl, Shift, Windows, and Alt keys have been pressed? I want to combine the Ctrl key with the mouse.

import flet
from flet import Page, Text, KeyboardEvent


def main(page: Page):
    def on_keyboard(e: KeyboardEvent):
        page.add(
            Text(
                f'Key: {e.key}, Shift: {e.shift}, Control: {e.ctrl}, Alt: {e.alt}, Meta: {e.meta}'
            )
        )

    page.on_keyboard_event = on_keyboard
    page.add(
        Text('Press any key with a combination of CTRL, ALT, SHIFT, META keys and then press Enter.')
    )


flet.app(target=main)

[FeodorFitsner]

Could you describe your use case please? If it's GestureDetector then we may need to add pressed keys array to gesture events, like here: https://stackoverflow.com/a/71853874/1435891

[icstos]

For example, hold down the Ctrl key and scroll the mouse wheel up to zoom in on the image.

[FeodorFitsner]

Got it. That what I meant by offering pressed keys information could be a part of GestureDetector events.

[icstos]

Sorry, I read the document and there is no information on this(hold down the Ctrl key and scroll the mouse wheel up to zoom in on the image). The main issue is that KeyboardEvent can't get the separate ctrl, shift, alt, and meta keys.Can we look into the implementation of this?

[FeodorFitsner]

Correct, because this feature is not yet implemented.

[ndonkoHenri]

I think an issue should be opened for future implementation.

[marc-svg]

Hi,
For my desktop app the user should be able to select a control with the mouse but only when Ctrl key is down. Is this possible ?

Thanks