Is modal the only way to keep focus on another window?

[sbenedetto]

Version/Branch of Dear ImGui:

Version 1.XX, Branch: XXX (master/docking/etc.)

Back-ends:

imgui_impl_XXX.cpp + imgui_impl_XXX.cpp

Compiler, OS:

macos

Full config/build information:

No response

Details:

In my application I have a GLFW window on which I draw a main imgui window as big as the GLFW window.

When I first tried to open another floating window from the main window it happened that if I click on the main window, the second window would disappear behind the main one. So I learned about popup and modals but I don't really like them because they grey out everything else.

Is there another way to open a secondary window and to make sure the focus stays on it until the it is closed? Not necessarily preventing the user from interacting with the underlying one, although I'd like to understand if that is also an option without modal/popup.

PS: Opening a "ticket" for asking a simple question adds a lots of friction. Many times I've hold myself back for asking questions. I read why the discord was closed, but I'm wondering if a new system is taking into consideration? The current mechanism adds a lot friction. Maybe is beneficial for @ocornut so that he gets less questions :-) but not so great for new comers.

Screenshots/Video:

No response

Minimal, Complete and Verifiable Example code:

No response

[achabense]

but I don't really like them because they grey out everything else.

As a workaround, try ImGuiCol_ModalWindowDimBg:

static void test() {
    const char* title = "Alpha";

    if (!ImGui::IsPopupOpen(title)) {
        if (ImGui::IsKeyPressed(ImGuiKey_M, false)) {
            ImGui::OpenPopup(title);
        }
    }

    ImGui::PushStyleColor(ImGuiCol_ModalWindowDimBg, IM_COL32_BLACK_TRANS);
    if (ImGui::BeginPopupModal(title, 0, ImGuiWindowFlags_AlwaysAutoResize)) {
        if (ImGui::Button("Close")) {
            ImGui::CloseCurrentPopup();
        }
        ImGui::EndPopup();
    }
    ImGui::PopStyleColor();
}

[sbenedetto]

Thanks @achabense! This already solves part of my problems.

What about

Is there another way to open a secondary window and to make sure the focus stays on it until the it is closed? Not necessarily preventing the user from interacting with the underlying one, although I'd like to understand if that is also an option without modal/popup.