Window grabbing issue after using BringWindowToDisplayFront

[o-3-o]

Version/Branch of Dear ImGui:

1.91.6

Back-ends:

imgui_impl_dx11.cpp + imgui_impl_win32.cpp

Compiler, OS:

win11+vs2022

Full config/build information:

No response

Details:

After using BringWindowToDisplayFront, other windows will flicker when they get the focus.

Although you can use ImGuiWindowFlags_NoBringToFrontOnFocus for other windows to solve this problem, it is too cumbersome to do so, so I don't know if this is a problem.

Screenshots/Video:

Minimal, Complete and Verifiable Example code:

        if (ImGui::Begin("CAPTION1"))
        {
            ImGui::BringWindowToDisplayFront(ImGui::GetCurrentWindow());
        }
        ImGui::End();

        if (ImGui::Begin("CAPTION2"))
        {

        }
        ImGui::End();

//  I mainly hope that MainMenu will not be blocked by other windows:
//  Although you can use ImGuiWindowFlags_NoBringToFrontOnFocus for other windows to solve this problem, 
//  it is too cumbersome to do so, so I don't know if this is a problem.
        if (ImGui::BeginMainMenuBar())
        {
            ImGui::BringWindowToDisplayFront(ImGui::GetCurrentWindow());

            if (ImGui::BeginMenu("File"))
            {
                ImGui::EndMenu();
            }
            if (ImGui::BeginMenu("Edit"))
            {
                if (ImGui::MenuItem("Undo", "CTRL+Z")) {}
                if (ImGui::MenuItem("Paste", "CTRL+V")) {}
                ImGui::EndMenu();
            }
            ImGui::EndMainMenuBar();

        }

        if (ImGui::Begin("CAPTION2"))
        {

        }
        ImGui::End();

[ocornut]

If you call this every frame other windows will temporarily fight for z-front.

There's no good solution for this as we don't have depth control yet. This is similar to #1328 which is not solved yet.