No callback for file dialog cancel button

[crnbaker]

Version of DearPyGui

Version: 1.3 Operating System: macOS 12.2.1 (M1 Pro)

My Issue/Question

According to the docs, a callback provided to dpg.file_dialog() "will be run when the file or directory picker is closed". However, it does not appear to run if the cancel button is clicked, and therefore there doesn't seem to be a way to find out if and when a user has clicked cancel in a file dialog.

To Reproduce

Steps to reproduce the behavior:

1. Open a file dialog with a callback that includes a print
2. Click cancel
3. Note that the callback is not called

Expected behavior

Callback should be called (with app-data indicating that cancel was clicked).

Standalone, minimal, complete and verifiable example

from typing import Any

import dearpygui.dearpygui as dpg

dpg.create_context()


def _on_close(sender: int, app_data: Any, user_data: Any) -> None:
    print('File dialog closed').  # does not print if cancel button clicked


def main() -> None:
    with dpg.file_dialog(callback=_on_close, width=600, height=400):
        dpg.add_file_extension(".txt")

    dpg.create_viewport(title='File dialog callback bug', width=800, height=600)
    dpg.setup_dearpygui()
    dpg.show_viewport()
    dpg.start_dearpygui()
    dpg.destroy_context()


if __name__ == '__main__':
    main()