Message box after a file dialog

[EmmaRenauld]

Hi,

I found how to make a message box: #1308
I found how to make a file dialog: https://dearpygui.readthedocs.io/en/latest/documentation/file-directory-selector.html

How can I verify some condition in the callback of the file dialog, and possibly show an error message box? When I call show_info() in the file dialog's callback, nothing shows.

Thank you!

Example:

import dearpygui.dearpygui as dpg

from dwi_ml.gui.utils.gui_popup_message import show_info

# --------- 
# Prepare callbacks
# --------- 

def on_selection(sender, unused, user_data):
    if user_data[1]:
        print("User selected 'Ok'")
    else:
        print("User selected 'Cancel'")

    # delete window
    dpg.delete_item(user_data[0])


def verify_and_show_popup(sender, app_data, user_data):
    if True:  # I will verify some condition
        show_info("TITLE", "Some message", on_selection)

# --------- 
#  Prepare buttons and show:
# ---------
dpg.create_context()
dpg.create_viewport(title='Welcome', width=1300, height=800)
dpg.setup_dearpygui()

dpg.add_file_dialog(
    directory_selector=True, tag="my_file_dialog", show=False, modal=True,
    file_count=1, callback=verify_and_show_popup)

with dpg.window(tag="Primary Window"):
    dpg.add_button(label="THIS BUTTON WORKS!",
                   callback=verify_and_show_popup,)

    dpg.add_button(label="OPENS FILE DIALOG BUT OK CLICK DOES NOT POP UP MESSAGE",
                   callback=lambda: dpg.show_item("my_file_dialog"))

dpg.show_viewport()
dpg.set_primary_window("Primary Window", True)
dpg.start_dearpygui()
dpg.destroy_context()

[EmmaRenauld]

Found it! I can add no_open_over_existing_popup=False in the window creation in show_info :)