show popup by clicking in the background

[kbvroum]

Hi everyone,

I'm trying to open a popup to emulate a context menu by clicking in the background of a window.
It's easy to associate a popup to a widget like a text or a button but if I try to do it with a window I have an error.
In this example I do it with a Node editor

with dpg.window(label="Tutorial", width=400, height=400):
    with dpg.node_editor(callback=link_callback, delink_callback=delink_callback):
        with dpg.popup(dpg.last_item()):
            dpg.add_text('create a node')

It returns

SystemError: built-in function pop_container_stack returned a result with an error set

I'm stuck on it for a while... Am'I doing something wrong ?

Thank you

[mazenbesher]

Here is an example using window as dialog popup:

import dearpygui.dearpygui as dpg

dpg.create_context()

def right_click_cb(sender, app_data):
    dpg.configure_item("right_click_menu", show=True)

with dpg.handler_registry():
    dpg.add_mouse_click_handler(button=dpg.mvMouseButton_Right, callback=right_click_cb)

with dpg.window(label="Right click window", modal=True, show=False, id="right_click_menu", no_title_bar=True):
    dpg.add_text("All those beautiful files will be deleted.\nThis operation cannot be undone!")
    dpg.add_separator()
    dpg.add_checkbox(label="Don't ask me next time")
    with dpg.group(horizontal=True):
        dpg.add_button(label="OK", width=75, callback=lambda: dpg.configure_item("right_click_menu", show=False))
        dpg.add_button(label="Cancel", width=75, callback=lambda: dpg.configure_item("right_click_menu", show=False))

with dpg.window(tag="Primary Window"):
    dpg.add_text("Right click anywhere")


dpg.create_viewport(title='Test', width=300, height=50)
dpg.set_primary_window("Primary Window", True)
dpg.setup_dearpygui()
dpg.show_viewport()
dpg.start_dearpygui()
dpg.destroy_context()

Consider also setting modal=False, popup=True to better emulate a context menu.

[kbvroum]

Thank you mazenbesher !
This is great. I have added a simple test to authorize only right-click in a specific windows :

def right_click_cb(sender, app_data):
if (dpg.get_active_window()=="Primary Window"):
dpg.configure_item("right_click_menu", show=True)